Why METRIC is SUPERIOR to IMPERIAL
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- Опубліковано 25 тра 2024
- In Part #2 - Barry explains why the Metric System is superior to the Imperial System. Should America switch from the Imperial System to the Metric System?
Watch Part 1 here: • Imperial vs Metric | P...
0:00 - Imperial vs. Metric
0:21 - Metric is Superior to Imperial
0:43 - Why Metric is Better
0:55 - 3 Reasons Why
1:27 - Temperature Measurement
2:01 - Electrical Measurement
2:13 - Automobiles
2:32 - Why in Machining Metric is Better
3:30 - Metric Conversion Act
4:02 - Conclusion
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#CNC #Machining #Machinist - Наука та технологія
Like Obi Wan once said “We want to avoid any Imperial entanglements”
Hello there
-_________-
@@MrShrog!
Oh lord.. Take my reluctant thumbs up and perish!
General kenobi
Myanmar,Liberia and the USA are the only countries still using imperial units. The last few shops I’ve worked in in the US were all metric and it was such an enlightening experience that now that I’m designing and manufacturing my own products they’re all 100% metric units.
i roll my eyes so hard at Americans who dont/cant understand metric, it's literally orders of magnitude, it's simple math, whereas they are partial to make believe units that dont mean anything. Literally made up ridiculous units, such as barley corns and hands, fingers, ells, shackles, inches, furlongs, like what in the honest fu
Didn't Myanmar have their own measuring system?
From Wikipedia:
The traditional Burmese units of measurement were a system of measurement used in Myanmar (also known as Burma).
According to the 2010 CIA Factbook, Myanmar is one of three countries that have not adopted the International System of Units (SI) metric system as their official system of weights and measures.[1] However, in June 2011, the Burmese government's Ministry of Commerce began discussing proposals to reform the measurement system in Burma and adopt the metric system used by most of its trading partners,[2] and in October 2013, Pwint San, Deputy Minister for Commerce, announced that the country was preparing to adopt the metric system.[3]
Burmese government web pages in English use imperial and metric units inconsistently. For instance, the Ministry of Construction uses miles to describe the length of roads[4] and square feet for the size of houses,[5] but square kilometres for the total land area of new town developments in Yangon City.[5] The Ministry of Agriculture uses acres for land areas.[6] The Ministry of Foreign Affairs uses kilometres (with mile equivalents in parentheses) to describe the dimensions of the country.[7]
The UK mixes units of measure.
Even the US is using metric albeit in a somewhat hidden way. All imperial units are defined in metric units. It gives those who love "freedom fries" the illusion that they can resist those evil socialist metric units ;)
You know the really crazy thing: the US standard imperial inch is defined as 25.4 mm. We have technically been using metric for decades now and most people don't realize it. Imperial was ultimately converted into nothing more than a weird subset of metric because metric was ultimately proven more accurate. So basically imperial is nothing more than a bunch of extraneous math we do on top of metric because we are stuck in our ways and it is "close enough".
But also you have to maintain all the extra sets of tools and fasteners and run extra risks of confusion of very similar sizes. Converting to metric would also hopefully entail phasing out all formerly known as British fasteners and switching to DIN/ISO standard ones instead.
Fun fact, every single imperial unit is defined by a metric equivalent. So even when we use imperial, we actually are using metric
@@SianaGearz or just completely switch to metric, then you only have one set you commonly use. Then have some back room that contains all of your unused imperial stuff just in case you need it.
A lot of things in a workshop you need to replace over time anyway, especially things like drill bits, taps, etc. Also bolts and fasteners are consumables, so when you run out or break them you could just buy metric to replace them unless you absolutely need imperial.
@@SianaGearz I mean as stated in the video, the US govt actually considered the question and had a panel of experts give advice in the 70's, and they concluded that the metric system was not only better, but sufficiently better that it was worth switching over to it.
The US is officially a metric system country, at least on paper, however Reagan defunded the org that was supposed to plan for the change so you're stuck with antiquated measurements defined using the metric system.
US has some unofficial mesurements in use on decumentaries so american folk can understand sizes. like...
if you want to define a height of a mountain, you have to say how many empire states building on top of eachother.
if length of a whale lets say, you have to mesure it with football field.
and interestingly, if you want to describe somethings weight , you should use empire states building again. its multipurpose.
if you keep using imperial, you gonna need a building or a sport field for normal folk can imagine.
Having used both here in Canada, I can assert from personal experience that metric is far easier to use and less prone to reading errors.
Same here in Ireland- have imperial and metric. As carpenter- metric way better.
Grey wolf. Agreed the inches vs millimetres thing is stupid it’s inches vs centimetres
@@oscarosullivan4513 Wrong. You don’t order anything in cm in the UK. Only in mm and Metres. Mostly no decimal point unless you’re getting plenty over 10 metres or you are working less accurate and go for example 6.4 Metres.🇬🇧
@@oscarosullivan4513 Not correct. Try to buy a 6mm drill bit... and convert that to inches. Idk the conversion but it might be 1 third of an inch or something like that. I really dont understand the imperial system, but I'm a metric guy for almost 50 years, that's the system thought in school.
@@grumpyone5963 Plenty of things are in centimeters. I buy paper for example 70x100cm.
The video forgot to say the biger advantage of the metric system: When you have to change to two or three dimensions like : How many gallons of water fit on a swimming pool 30 feet and 5" long, 19 feet and 8" wide and 7 feet deep? (Try it without calculator)
In metric just multiply all the measures and the volumen comes in litres, and that's it!
Yeah, I felt like he was linning up to tellus jus that, and then for some reason skipped it.
There's also a quote from a book about conversions in metric versus imperial, paraphrasing here: "How much energy does it take to boil cubic liter of water from room temperature, possible to do with metric in imperial the answer is fuck you"
I think I would go with inches. 365" * 236" * 84" cubic inches. Then divide by 231 since I use US Customary gallons and it's defined as 231 cubic inches exactly.
You missed a step though. It has to be in meters to get your answer in liters.
@@CommanderCodey absolutely not, that would be a cubic meter (m³) which are 1000 liters. But in cases like pools no one measures in Liters because one m³ of water ways around a metric ton and the value if needed in liters can just be converted by multiplying
German engineer here. I grew up in the metric system and only git forced to understand imperial when I lived in the US for some years. Luckily during that years I changed my field of engineering epand went into IT.
I never had an issue agreeing on conversion. When I lead the engineering department (worked for a US company in a German plant) all the contracts with suppliers just stated that all equipment and design documents need to be metric, even for US suppliers. If they didn‘t want to comply? Sorry then they where out.
the only way to convince an American: hit the wallet
Sawitzki you could only be Slavic or Serbian Sawić. There is no way for you to be a German.
@@user-hu6yr9ro4q A German engineer of partial Slavic ancestry is easily possible. Any part of Germany east from Elbe river used to be Slavic until early medieval times - way before German engineers shown up on the map of human species.
@@user-hu6yr9ro4q neither Slavik nor Serbian. Born in Germany from German parents. But I must admit that my father was born in Poland, but in a Region where 95% of the population where Germans.
No wonder, as a person with a German surname I am ... a native Pole for at least 4 generations back
One thing often overlooked is how much easier it is to go from e.g. lenth to volume to weight. 1 liter of water is about 1kg and the size is 10x10x10cm. Try doing that going from gallonds to punds to inches. Metric is not just about how you measure length, weight, volume or many other things. It is also about the relation between them.
And if it's not water? 1 liter of gasoline does not weigh 1 Kg. Meanwhile, gasoline is the one liquid I measure out the most in my daily life. I gallon weighs 6 pounds. Therefore a full tank (for my car) weighs 72 pounds. That wasn't so hard was it? Seriously, please consider how many times in your daily life to you convert volume to weight with water. Be honest.
@@noelmasson Many things has about the same density as water, because a lot of things consist of water. And the mass/volume conversion is practical when you use it e.g. in baking and other food related activities.
@@laserbuddha You didn't address my point. I "measure" fuel more than water. Most people do. Also 75% of density is not "about the same", any more than 1km is "about the same" as 1 mile. 1 gallon weighing 6 pounds is a relationship, and it's not hard to remember. Certainly no harder than remembering the difference in order of magnitude between nano, pico, hepto, mega and giga for example or that there are 60 seconds in a minute, 24 hours in a day and 365 days in a year for that matter.
@@noelmasson Really??? Just read the whole discussion again, starting with op.
Just because it's not useful when it comes to gasoline, then it completely useless? Your point is whatever it's, is just weird.
... and it goes on and on.
1 cubic meter of water weighs 1 metric ton (tonne)
1 kilo gram of mass requires a force of 1 Newton to accelerate it at 1 meter per second of velocity every second
1 Newton of force pushing something through 1 meter expends 1 joule of energy
1 Newton of force pushing something at 1 meter per second expends 1 watt of power (1 watt = 1 joule per second
1 Newton meter of torque turning at one radian per second rotation rate expends 1 watt
Larger units are in multiples of 1000 (also "centi" occasionally used for 100) which prefix the units
nano = 1/1000,000,000,000
pico = 1/1,000,000,000
micro = 1/1,000,000
milli = 1/1,000
kilo = 1,000
mega = 1000,000
giga = 1,000,000,000
tera = 1,000,000,000,000
How many ounces in a stone or stones in a ton, or cubic inches in a gallon again? Oh and is that a US ton (short ton) or an imperial (UK) ton (long ton) and a US gallon or an imperial (UK) gallon?
The main argument given in favour of imperial units is that with imperial units it is easier to visualise roughly how much the quantities are. The above shows that that argument is total baloney.
Even though I live in Canada I use imperial since professionally I'm an hvac mechanic, everything we use is imperial. But as a hobbyist when I'm designing things in cad I started using metric. I'm currently building an arcade machine and for the first time I used metric to actually measure and build. Holy s@$! what a difference. Every measurement I made with a metric ruler and the math was so easy. In the past I would have struggled with converting fractions to decimals and then adding them together and getting some half assed measurement that was always a little off. Thank you metric system.
I grew up with Iperial in the UK then the metric system started to be brought into schools in the early mid 70's it was stressfull but metric is waaaaay easier to use overall, manufacturing, science, every day stuff. Especially if you have to deal with threads. Metric taps and dies are incredibly simple and versatile where you have standard pitches and sizes and lesser used sizes and pitches for more specialised applications.
As a person from a metric using country, your neighbour Iceland (we are like 900km away from Scotland), I can tell you that I did not learn a single thing about the imperial system in elementary school, high school or college. I only know that 1 feet is about the length of a Subway sandwich.
What did you actually find stressful about it? I was only taught metric and I failed maths due to shit teachers purposely stopping me from sitting the higher level paper. I can still convert from metric to imperial in my head as it's really simple maths.
The issue is I had, and have fixed, was converting the metric measurement to inch in my head. Then one of my coworkers said to accept the measurement for what it is. Do not convert it. A mm is a mm. And it's this big (holding my fingers .040" apart) So when it says 10mm, visualize that distance in your mind. You keep doing that and all the sudden it just cliques. It becomes natural. All of our prints, machines, tools, etc. have all been standardizd to metric. Now when I have to work on one of our old machines that was made in inch I hate it. I have to have inch tools and a separate tool bag. Luckily as we phase out old stuff and get new, it's all metric, and I love it.
We done that in Europe when adopting the Euro... In France, the change rate was "1 € = 6.55957 FF". Not the easiest, isn't it?
On the beginning, I was constantly converting - despite that ALL labels were always in BOTH Euros and Francs. I used some tricks, like "15€=100FF" to make it easier, but I was still struggling with big amounts: prices for a car, or worse, a house were simply impossible to evaluate when written in Euros and I needed to convert it back to Francs.
Then I started to "accept" prices in Euros, for daily things... A coffee wasn't 2.50FF anymore, but 0.40€ (yeah, they raised all prices a bit, these b*stards...). Same for my bills, and finally my income.
And suddenly, all felt into place: a car's price was understandable in Euros, like a house. Because, inconsciously, you estimate these prices according to your income. You may not realize it, but you don't think "This house costs 250.000€", but "This house is 4 years of income"... Then, according to how much (in percentage) you can save monthly, you recalculate this in "This house is 20 years of savings". And NOW, you know if it's affordable for you - or not.
For units, it's the same: you do NOT know what a "gallon" is. But you know the WEIGHT of it, you know how much you can carry - let's say 10 gallons max if needed. You can't understand liters because you didn't realized what a liter weights... You don't know "a mile", but you know that you need 15 minutes to travel a mile during rush hours... And around one minute on the freeway.
Most of the time, the "hard units" are (small) lengths and weights, meaning feet/inches and pounds for an American, because they are the only ones where you really need a daily evaluation. Kilograms is quite easy: you can round up with "1 kg = 2 pounds" for small weights. And obviously "1 m = 3 ft" and "1 inch = 3 cm". But that's good for tourism.
It won't help, but in the very beginning... What you need is to STOP ESTIMATING THINGS. Measure them instead. I'm fully used to metric system, trust me, but I'm very bad at estimating lengths: 10 meters or 20 meters is quite the same for me... And I'm strong enough to simply be unable to distinguish anything between 5 and 20 kilograms. So I measure everything I need to know precisely, from my boys' weight for medication to a room's size for buying furnitures or materials.
And once you stop to estimate things constantly and accept the new units, then "magically" you're able to estimate lengths and weights again... If you were really able to estimate them on sight previously, and not constantly put your thumb or your feet close to stuff to "estimate" them.
@@mac_lak You're on the path to enlightenment when you accept the world as it is, rather than try and convert it to your liking. Not just in measuring or currency, but to life in general.
@@mac_lak Same here in Germany though a bit easier with a conversion of 1.95.... Marks to 1 €. The roughly 2:1 made it more intuitively comprehensible though. Interestingly we still have "Pfund" = pound as a weight. Way back in the past- must be 150+ years - depending on where in Germany you went it could be anything between some 400 to some 600 grams. At one point it was then standardised to 500 g or 1/2 kg. This is still sometimes used today epecially in butcher shops.
That's how I deal with imperial measures in Europe - 15" notebook, 24" display, 6" smartphone, 3.5" floppy disk, 2.5" hard drive, 1/2" pipe.
@@sergeykish I really wish they mandated laptop etc. sizes being displayed in mm.
I served a Mechanical Engineering apprenticeship starting in 1976. At school I was taught the imperial system, then as I got older, the metric system. Going to work reverting back to imperial. Micrometers were a nightmare to learn as was the vernier caliper. Working in fractions ½¼⅛⅙ and 32nds. Knowing all their decimal equivalents. Then the Micrometers working in 'thous' or in 25ths.
The metric system really in the UK Engineering took off in perhaps the early 90's when CNC machines became more prevalent.
The metric system is hugely better than the imperial system.
In another video someone commented that at school children learn the metric system in two hours and the Imperial system in two years. I think it's an exaggeration but it was to show the difference in the system's ease of learning and using.
A big advantage of the metric (DIN) threads is the fact that there's no possibility to get the wrong bolt into the wrong hole. Either it falls through or it won't fit at all.
Same with hex wrenches.
The most dangerous threads are 3/4"-14 NPT and 3/4" BSP or BSPT.
They seem to fit, but they damage each other and will rip out at high pressure.
I've got farm machinery in the shed that came out of the factory with imperial and metric bolts.
@@jackhand4073 The Tornado fighter Jet also has Imperial and metric nuts and screws mixed, depending on where the part was manufactured.
That's absolutely crazy and dangerous like hell.
@@norbertfleck812 Wow. Scary stuff. Just asking for a mistake. Thanks for the info
Not necessarily. You have to be careful when working on old pre-WW2 metric machinery. If you look in your old reference books you will see there are British, French, German, and Japanese standard metric thread and pitch combinations that are not all the same. Currently there are coarse and fine pitch metric screws and in the smaller sizes the difference may not be obvious with a casual glance.
Country of origin can also confuse things. I have an old Taiwanese milling machine that after 30 years of use discovered that it wasn't all metric. About half of the fasteners are British Standard Whitworth.
What about that one: #8-32 coarse threads and #10-32 fine threads? That one is dangerous because the #8 screw will actually fit in the #10 hole and you might even be able to torque it a fair amount leaving no indication that you messed up.... Until the barely engaged threads finally let go during use...
Okay clever move, play both sides of the fence eh? Next up, why HSS is better than carbide 😜
I mean, HSS is great for very soft materials because you can get it INCREDIBLY sharp.
But yeah that's about it 😂
@@Birb_of_Judge micrograin carbide can be just as sharp as hss
@@etch3130 maybe, but is it any cheaper at that sharpness?
For small classic lathes it is
@@Birb_of_Judge per kg removed
There's another problem with imperial units: they are not the same, it's depending on where you use it.
Nautical miles vs. US customary mile. A yes, and not to forget the US survey mile which differs from the US customary mile.
And volumetric units also differ, a US gallon is different to a British gallon, if I remember correctly.
A British Imperial Gallon is 8 pints of beer.
A US Gallon is only 6.6 pints of beer.
Glad I'm British if only for the beer.
reading this feels like reading a comedy book
This all reminds me of something one of my American friends (a very senior federal civil servant) once said, although I don't think he originated it... 'You can always rely on the US to do the right thing - but only after they've tried everything else'.
Take the "lbs - pounds" weights from random gyms, weigh them on the same scale and get different results (one's "pound" would be 453 grams, whilst others can we whatever around that number)
The nautical mile is a different beast. It’s based on one minute of latitude, as a navigation tool. So neither metric nor imperial. Still, of course both UK and the US had their own nautical miles long after the rest of the world settled on the standard metric definition of 1852 m in 1929. So for many years there were three different nautical miles. ;-)
In Germany we started using metric from 1871 on. Before we had Prussian mile, Bavarian mile, Saxonian mile and so on, all a bit different. Makes sense that we use km now. All scientist use metric SI units now and these units are now properly defined by nature. And there is no reason to resist it since it makes life much easier.
Hi, I did my machining apprenticeship in both imperial and metric. I can remember when the shipping company I worked for bought its first ship with metric parts on its main engines. Initially it was quite scarey but one got into the swing of it. it became a lot easier to understand. I think I am one of the lucky people who grew up with both and I am sure a lot of you folk would agree if you are around my vintage. To my surprise my new 2016 Ford Mustang has a lot of metric fastenings on it. Not sure if that applies to the like of the engine part sizes. Cheers Ian - New Zealand
I think all cars have been designed in metric since the 90s (basically since CAD tools) with some exveptions in assembly when using parts with existing "standard"-sized parts
Ford and several other companies have to unify their part bin and platforms between EU, USA and often Japan as well to make use of economies of scale. Half the global Ford vehicles if not more are engineered in Cologne Germany. And in most of these regions, imperial fasteners would not be permissible at all. Like, not like the state forbids it, but the companies really don't want the absolute potential quality assurance hell of mixing tools and fasteners. Indeed it's typical that they'll try to make just about the whole car on one fastener size with just a couple exceptions as needed.
It's interesting that the Americas car companies converted to metric because every non-US supplier used metric. On the other hand, when Airbus came to be they used imperial because most major suppliers were in the states. Also, the US aircraft manufacturers supplied the vast majority of planes even in european fleets so every airline/maintenance shop had imperial tools laying around.
Dude my 1991 Ford Thunderbird is almost all metric fasteners.
I recently retired from a shop that used both. We had a lot of drawings from Canadian customers for parts that obviously had been designed in inches years ago, but the drawings were re-dimensioned in millimeters. Our building and construction customers still used fractional inches. Automotive parts were strictly metric, but we programmed in inches. Inspections were metric. Taking a CMM report in millimeters and adjusting CNC offsets in thousandths was an error prone challenge.
Working here in Canada as a construction surveryor in tne 80's was fun...we used decimal feet in surveying, so using metric was a simple shift...but the trades were interesting, the millwrights and machinists both used metric and decimal feet...all of the structural steel tended to be metric....vut, the carpenters refused to use anything but Imperial fractions....I used to have to carry a chart in my fieldbook to convert between the three measures.
Yeah - combining the two is probably the worst of two worlds.
There are some places where imperial units are still used in electronics - PCB layout being one. The convention of pins being on a 0.1” pitch grid, is now rather redundant, but the use of thou/mil (ie 0.001”) is still a very useful unit due to the contextual size for PCB track work. Just like in some applications inches are contextually useful, and easily visualised.
Learned in metric and think that this is the more bullet proof way to go. Easier to define tolerances. Tried to work with imperial system but it blows my mind on how this should be easier or more practical
As an Englishman, its nice to understand both. Even if I do, like you say, translate between the one I'm familiar with and the one I'm not. But we use such a mash between the 2 🤣 kilometers if you're walking and miles if you're driving. Docs measure heights and weights in metric but we talk about them in imperial. We also use horsepower for combustion engines and kilowatts for electric...
Hopefully you can explain something to me that I have often wondered about, but never remembered to ask whenever I was in England. Petrol (gasoline) is sold by the litre and the road sign distances are expressed in miles, but I have never heard anyone talk about the mileage their car achieved in anything other than miles per gallon. Is there some easy mental math conversion for that?
@@samshublom8761 well yeah there will be a calculation for it but we tend to just know how many miles per tank and how many litres are in the tank 🤷♂️
Although I just looked on my VW and it has an option for km/L as well as m/g
@@samshublom8761 I only know the long winded way. We have a different gallon as well, to confuse things.
4.5L x £/L and then that's my £/gallon.
Its not that straight forward, but i know its roughly £9 a gallon (£2/L) at the moment. I have a 60mpg car, so I know a 20 mile drive is ~£3.
Another Englishman here and I have a habit of sometimes managing to use both at the same time. Saying things like, "I need a bit of 10mm rod, about a foot long"! In general, if it's an approximate measurement I sometimes use imperial but if I need to be precise, it's always metric. Things like building materials still tend to get referred to in imperial, such as sheet material comes in 8'x4'. Well actually it's sold as 2440x1220mm but it's quicker to say 8x4!
@@chrisharden3934 yes very true. We even have some steels delivered that say on the notes 4x1x500mm for example...weird!
Fun fact: Here in Germany we use both kW and horse power (PS = Pferdestärke, which is literally Horse Power, but is defined a bit different with metric units. 1PS ~ 735W; 1HP ~ 746W). Most people know the PS number of their car, but have to look at their official papers for the metric one.
We also sometimes use Pfund (=pound) colloquially to refer to 0,5kg
In france we use HP or more recently (20 years) kW, i own a BMW and even if specs are in PS, i just approximate 1 PS = 1HP, not a big deal .. and in the end the specs power is never the reality, my 330 is more powerfull in reality then on the paper.. For more technical things, kW is the most accurate and we can easily compare electric to petrol, comrpessed air.. etc
@@davidniquot6423 I wouldn't be surprised if the HP France used, were metric as well. 1PS is the power needed to lift a 75kg weight on earth (g~9,81m/s²) 1m in 1s, which apparently is about as much as a horse could do. An imperial horsepower lifts 550lb 1ft in 1s. Strange that they still couldn't find an alternative time unit to distance themselves further from the metric system ;)
@@SchwachsinnProduzent Time wasn't given the "metric treatment". (they tried though) It was hard to find decent numbers, I think. Of course time already was the same everywhere and had been for a long while. The multiples of 12 give away that it is ancient. Measuring time is a whole different ballgame, though, just like setting the same time (clock) for region or country.
@@SchwachsinnProduzent Time is imperial. 60 minutes 24 hours etc.
@@agt155
No, it's even older than imperial. The 24 h are Egyptian the 60/60 are Babylonian.
I like how metric can transfer information between mediums.
For example, volume to weight and vice versa. 1 litre of water, weighs 1kg or 1000 grams.
So if I need 1 litre of water, and don't have a measuring jug, I can just use scales, and weigh out the volume, Which I have actually done before.
Which is a cube with an edge length of 1dm, i. e. 1dm^3
Works fantastic with thermal capacity and Joules and Watts.
In kitchen I like to measure liquid volumes with a scale. 1ltr of water = 1kg, and all other liquids are close enough.
I’m American but when I’m building things for myself I’ve been using metric more and more over the years. I’m still not as familiar with it as I am with imperial but I’m getting there.
It's very easy m8, just use base of 10. for example, 1 kilometer (km) = 10 hectometers = 100 decameters = 1000 meters (m) = 10000 decimeters (dm) = 100000 centimeters (cm) = 1000000 milimeters (mm) etc...
Or should I write it like this:
* Measurements above 1 meter are
---- deca (da) = 10^1
---- hecto (h) = 10^2
---- kilo (k) = 10^3
---- mega (M) = 10^6
---- giga (G) = 10^9
---- tera (T) = 10^12
---- peta (P) = 10^15
---- exa (E) = 10^18
---- zeta (Z) = 10^21
---- yota (Y) = 10^24
* Measurements below 1 meter are
---- deci (d) = 10^-1
---- centi (c) = 10^-2
---- mili (m) = 10^-3
---- micro (u) = 10^-6
---- nano (n) = 10^-9
---- pico (p) = 10^-12
---- femto (f) = 10^-15
---- ato (a) = 10^-18
---- zepto (z) = 10^-21
---- yocto (y) = 10^-24
(sorry if there's some misspelling in the prefixes)
*** Same applies to the volume as well, for example 1 liter of water can fill up the space of 100x100x100 milimeters (10x10x10 centimeters or 1x1x1 decimeter or 0.1x0.1x0.1 meter that's why we say like this: 1 liter is equal to 100 cubic milimiters or 10 cubic centimeters or 1 cubic decimeter or 0.1 cubic meter. In 1 cubic meter you can fit 1000 liters of water and so on and so on.
One more example, easy one, let's say like this: "yesterday I was traveled 1.45 km, how many meters is that?". Answer is easy, so 10^3, so multiply 1.45 by 1000 and result is 1450 meters, basically just move the "decimal point" sign by 3 places to the right when converting toward smaller units and to the left when converting toward bigger units. Basically, the power of 10 shows you how many places to move the "comma"/"dot"/"decimal point".
Anyway, I was raised using metric, but I also use imperial as well, with over 20 years experience in mechanics I can build whatever using both (if I start imperial I finish project using imperial only with no conversions to metric and vice versa).
I am from belgium so raised in the metric system. My first work was in England they used metric but the older engineers there claimed the metric sustem was superior for engineering purposes but the imperial system made better looking designs because the proportions where better. :-). I must admit i love the design proportions of my Norton commando.
Great video / top quality production. Had to check this was titans and not the discovery channel due to format change!
I have to share. I worked for a Belgian owned company that produced germanium lenses in eastern Oklahoma. Drawings were in metric, but tolerances were imperial, so you had a 7 cm diameter with a tolerance of +/- 0.030"
I work in both. It all depends on the units specified on the customer drawing. It makes it so much easier than converting everything
I am an Indian and i use METRIC. But something good about working in Malaysia is , anything related to production, CAD, CAM not only uses METRIC but also the Construction department. Every single construction layout is in MM. The weirdest part is the CONSTRUCTION departments in INDIA still uses IMPERIAL....a bit annoying.....but still can be used.
Yeah, they still use inches to measure wall height and use square feets to measure a room area.
For someone in construction it is far more intuitive to talk about 8 foot ceilings than 2400mm ceilings. For day to day life imperial still makes a lot of sense, but I still much prefer to use metric, even in construction.
I have to master both. That thing he said about imperial taps didn't make sense. I can do both the same way. Major diameter minus the pitch . 1/4 minus 1/20 =.2
@@davidandjessicaclay2333 dumb comparison and dumb comment in general
@@davidandjessicaclay2333 It's not that imperial makes sense for day to day life, it's that US Americans are accustomed from young age to imperial using it for day to day life. Thus it is harder for them to use metric because they have to learn to use it when they are used already to imperial. You might say that I am just talking semantics, but I like to call out the real reason here. Metric is not taught properly and not used as a prime measurement system, and schools are just brushing over it just to check a mark to say they taught it.
Thinking back at the previous video, this all makes so much sence now! Barry can just say one thing and not do any research beforehand, but he can just easily read all the comments to list as many reasons for a new video as he wants, AND have a laugh at the same time! Then just make a new video with the gathered information telling the previous one was a joke!
Barry, you're a GENIOUS!
Pretty sure this video was already scripted before they even shot the first video
@@owievisie Very much possible but I just wanted to think that way :D
noni
I work in the purchasing department of a multinacional, I am in Brazil and the HQ is in US it took me a lot of time to get used to imperial systems.
The worst part is that suppliers some times don't say if they are selling in squere meters, inches or feet.
As a carpenter in the US I'm quite familiar with the fractional system, but I'd switch metric any day of the week. The only gripe I have with metric is that the gradations in C are not as fine as in F (100 units vs. 180, respectively).
in reality the single C grade can be divide into ten parts for example fever start at 37.5C therfore between 0C and 100C can be 1000, 0.01 0.02 0.03 and so on
@@Lorre982 Good point.
We use both where I work. We manufacture gas turbine parts for the aerospace industry especially Rolls Royce, CFM and Snecma. I personally prefer metric as I loathe imperial.
Same, aircraft maintenance engineer here and we use both metric and imperial.
In Germany cars in the sales rooms have the power of the engine in kW and ps usually shown as 110kW (150PS). Because PS is the measurement people use and usually have a reference to. But pipe diameters, rim diameters and screen sizes are shown in inch or as we call it Zoll.
...and in sweden it is HK.
PS of course means HP.
Yeah, I had to measure my heating pipes for the plumber. Turns out it's a half zoll, but the actual outer diameter is 1 inch. We should just stick to metric.
In the mid 1980s I worked tor a company that produced plastic pipes and hoses, the bigger diameters ranged to 200 mm.
Our sales man in the US asked if we could prepare hoses for firefighting trucks and supply them with coupling flanges.
So we asked information about the threads used.
We got an enormous file, something like a couple of phone directories with listed the information for the various threads which were mindboggling.
Just in the Chicago area there were dozens, we opted to deliver pipes without any coupling.
All that aside the only thing that should be considered when deciding which is a better system is which one is easier to learn, which one has the fastest mathematical formula, and which one has the most easily remembered fundamental units. when it comes down to whether you're measuring, building, doing physics or chemistry, the units of measurement that give you a greater understanding of the world around you is simply the better system.
I work in a shop that uses metric for our prints and programs. But our raw stock, cutters, and measuring tools are imperial. Unfortunately 25.4 is my favorite number.
I feel your pain, but 25.4 is not such a bad number...
...unless you accidentally convert with 24.5.
Then everyone is gonna have a bad time.
I work with both, i simply make programmes in metric or imperial as par the part.
It is much more simple to just convert feeds and speed rather then translating the whole drawing and tolerance.
Why when metric is superior?
@@Davoodoox1 its better to think and do imperial when working with it and the opp applies. Then you not constantly converting.
I work in Italy, and personally the metric system is more in step with the times; thanks to the fact that it makes it difficult to make mistakes and above all it remains more widespread. however I am of the opinion that you have to work as you are comfortable and get a good result
At the time going to school in Australia we were transitioning from imperial to metric, at that time our teachers were also learning metric for the first time, It was a little confusing for all of us but it's now funny that when I'm making large measurements I use Imperial and small measurements are metric and sometimes a combination of both. When discussing projects with my younger counterparts I often see a degree of confusion until i tell them I'm "Bi" (not in that way LOL).. I see benefits in both units :)
Congratulations, the correct video has now been made 😅
Metric IS far superior in every way
As an average person in Canada I grew up with imperial and later in life transitioned to 10ths of a foot in construction industry with some stubborn contractors and going on to metric when that fad faded heheh. I like metric and can switch back and forth in daily life as I have a foot in both worlds with older friends and younger folks. I do 3d printing so it is very easy to design in metric and if necessary convert for suppliers who may be still rooted in imperial. My advice would be to remain bi-system so you don't get stranded. For daily life 2.54cm=1 inch will keep you in the park.
Fun fact: With the metric scaling system you can even do Mft (megafeet) and mft (millifeet) and kft and so on and so forth. You were basically using dft (decifeet) in that case.
keep both is energy waste. and that make mistake in space because dont know 100% if is mm or inch.
Make conversion is wasting time from your life. ok is 1 sec now. but second +second + second can be hours or days just in not solving other problem.
Kilogram already is on path in be changed in something more acurate like constant value instead of 3 metals in vacum vault in 3 diferent place.
From South Africa, we grew up with the metric system, my father, however, when he did college they were taught the imperial too, he's a diesel mach, the metric is so much easier to use and to understand, and as I came to see (I know I might be wrong) the imperial system works with 1/4 or 1/3 of an inch as the millimeter part of the imperial system, and that is something that boggles my mind and make it difficult and confusing in using the imperial system and can never use it.
I have used both systems and the bottom line is that metric is a lot easier to use. Just try to find the square footage of a house without an imperial calculator!!
Imperial - Because a Metric Star Destroyer doesn't sound as intimidating
😆😆😆👍
You'd be a great DB in football, you can back pedal like no other.
I'm European, so it is clear that I grew up with metric and I'm familiar with it. On the other hand I can understand people which want to preserve their roots and refused to adapt. Metric is simpler for technical occurrence . While the fractional can be easier in everyday life and mentally challenging (more than metric). I don't judge but the real need is to know and understand each other, as you correctly pointed out.
Greatings
The thing is imperial uses metric to define itself since imperial cannot be directly defined by universal constants.
For example 1 inch is defined as 0.0254 meters which can further be defined by the length of the path traveled by light in a vacuum during an interval of 1/299,792,458 of a second. Which is far better than using seeds as a constant since they can never remain constant.
I use metric, wish we would standardize our fasteners to metric so I dont have to have both sets of allen wrenches out all the time. Charles
What I like about metric is a 10 cm x 10 cm x10 cm cube is 1 litre. I litre of water is 1kg in weight. (At a certain temperature) then if you know the relative density you can calculate the mass of say iron based on its litre volume.
Being canadian. Born in the 80's, i learned the metric system. Being a carpenter and learing from older people, i also know the imperial system. I know im 6'4" tall. Or 193cm. For the last two years i started to go back to my metric roots, and my miscuts have gone down by 50% after working for 12 hours in 40c temps in full sun, where you are bound to make mistakes. I just find it more accurate.
Few people know the imperial unit for mass is the slug. I remember how complicated it was to calculate slugs from lbs force when I was in school.
Few people realise the metric unit of weight is the newton, try converting from kilograms.
1 Newton is 0.10197kg nice just factors of 10, not really.
@@stephenlee5929 Might be a problem for people who don't know the difference between mass and weight and then end up on the moon. The rest of us measure weights in kilograms.
@@rexsceleratorum1632 I agree, that's the point I was trying to make in reply to G Kuljan, most people use pounds for both weight and mass. The issue is the same in both systems.
It's actually based on pure water. A cubic centimeter of water is also a milliliter of water, which is also a gram of water (at standard atm and at room temperature).
Edit: Imperial is useless for two reasons (I'm saying this as a user):
1. Its all based off of Metric
2. We use metric in science-based courses throughout our education because it's simpler to convert between units measuring different qualities, and it's based on a power of 10. This makes measuring both small and large scales easy i.e. the meter is the base for both the Gigameter (not used, but same thing as "X millions of Km") and the nanometer.
A calorie is also defined as amount of work needed over x amount of time to heat up y amount of water by 1°C
So easy and logical.
"room temp" is 20C btw, with the original rooms holding the rods being very regulated in temperature (as metal expand with temperature fluctuations)
well, its the other way round, the definition for volume is based on the unit for length - but:
they wanted to base the unit for mass on the mass of a cubic meter water at 4°C. they went a different road, to write it down, but
1l Water at 4°C (highest density) has ~1kg (at sea-level) and fits in cube with 10cm side length
Imperial isn't actually based on metric, but it's now defined in metric. Imperial is based on sizes of things (average foot length, for example) which can changed, so they standardised the imperial units based on metric equivalents.
You could have talked about how the metric unrus have been defined by physics. It doesn't have to relay on some old 1kg weights anymore
Could also have explain that the imperial measurements reference was lost and and recreate from the metric reference 🤣
the one argument ive never trueley understood is it was frequently said the cost to change all of americas machines over to metric would be too expensive i accepted this as a unfortunate fact
but shortly after america went through a MASSIVE upgrade into CNC and replaced most of those machines anyway so why they didnt just say ok lets go metric as this is the perfect time now is beyond me
iam from denmark so the metric system is the norm here, its what we were taught as kids. love the video keep up the good work, much love from denmark
As a manual machinist, I was trained in imperial units. Once I started using cnc based machines, especially 3d printing, I switched to metric. Having used both, I tend to prefer metric for all of the ease of use reasoning mentioned here for small stuff, anything bigger than a meter gets the imperial treatment for all the reasons mentioned in the last video.
Muito bem explicado e demonstrado... parabéns...
Olha o Brasileiro perdido aqui.... hahaha
Mas eu não concordo com ele. (que ambos são igualmente bons, são apenas Diferentes)
Sistema Métrico é Melhor justamente porque é mais fácil.
Facilidade = Menos erros e Mais Eficiencia
Here in Sweden (and Norway) we use Scandinavian miles which is basically a metric version of miles (10 kilometres is 1 Scandinavian mile).
Oh thank god, i wasn't sure if the last one was just a troll or not.
But I'll stick to metric 😂
Never used anything else in my life
I think it wasn't a troll. If you look at the videos, most if not all of them are narrated in inches, the overlay comes in metric though, just as an afterthougth. I find these videos quite interesting but every time they talk about feeds/speeds they use Imperial and have to do the conversions in my head.
I am a firm beliver sticking to Imperial is holding american manufacturing back.
i work with both. all my part drawings are called out in a converted to-inch dimension. so there are lots of times the swiss mess up in the conversion and the parts end up wrong unless we go through the engineer's dimensions and check everything. anyways. i like both. Imperial has its place and so does metric. i believe metric is superior in the high tolerance area where imperial is better in low tolerance areas such 1/2" 1/4" 3/16" for framing wood or such. but then lumber has its own system! ( 2 x 4 = 1.75" x 3.5"??)
you pay for the saw thickness. 1/4 inch saw. and yeah imperial or for america SAE is more practical. For my line of work anyways.
@@rektiumstuff3245 yeah I know my dad has a saw mill. But 40 years ago you got a 2x4 when u bought one. Just the standard has changed.
Nominal sizes have their uses too. I think pipe sizes are nominal as well, not reflecting their actual size.
@@TheOutbackIndustries and that is precisely the reason why imperial sucks. Everyone is just accepting that imperial numbers on raw goods are merely a suggestion, so when a 2*4 isn't 2 inches thick... That's fair game to many. In the end, it means more money for the manufacturer and less for the consumer.
Similarly for sheet metal, the gauge varies a lot from one material to the next. Whereas in the rest of the world, the thickness is specified as a dimension, so it is very easy to understand just how much you get for your money. And if you want to know how heavy it is - thickness * area * density, and you're done. With sheet metal gauge? God knows...
@@gottagowork Pipe sizes actually did reflect their actual size and do under certain circumstances still today.
The first use for pipes was (as the name suggests) piping, water pipes etc. And what is important for something that carries fluids? The inner diameter and that's where the naming comes from.
Now go ahead a few more years, material grades are getting better, you need less wall thickness and you also can use those pipes for structrual applications. But for structural applications you want to have a constant outer diameter with varying thickness.
A study was made on this subject, where 2 teams built an house. One team used imperial, the other used metric. At the end the imperial team made much more waste/ wasted more resorces then the metric team. Most errors were made by converting from the one to the other imperial unit. So that has notung to do with which one is someone more used to. I saw a clip in which OCC mechanics were unsure if 3/8 is the same as 1/4. And they should be used to imperial.
In the metric system you can also jump easily from length to volume or to weight, because they are somehow relatable. 10cm x 10cm x 10cm= 1000ccm/cm³ or 1liter. 1liter water weights 1kg, 1000kg is a metric ton, or 1 bar= 10N/cm², atmospheric pressure is ~ 1bar. Rule of thumb says water pressure rises 1bar/ 10m dept. Its much easier to convert units.
here from Italy, only a worker will fully appreciate the cleanliness of the metric system.
Metric all day. Not so much familiarity as I grew up on Imperial but I understand metric much easier, more intuitively. Metric measuring also got me into machining and woodworking from understanding much easier than dissecting every inch by up to 128. Taking it to a career in machine, I'd rather work with metric and let the machine convert to inch if that is desired for any reason. However, I do like Fahrenheit over Celsius for my familiarity to the values, I just know what 72 is supposed to feel like, 22 doesn't mean squat to me besides converting it in my head to Fahrenheit and how it's supposed to feel like.
Celsius is easier to understand: 0 Celsius water freezes, 100 Celsius water boils.
When I was working in fabrication, I will always say it was nice to have all the fasteners and hardware in metric because it's easier to remember that one size up from M5 is M6 Rather than 1/4 in to 5/16 in. In face value alone, metric is far more intuitive to learn, but imperial is typically easier to assess at a glance, if that makes any sense.
I only have issues eyeing the difference in M3 and M4 on a cold start. Of course you can't screw m4 into m3 so you can't mess it up even if you get it wrong the first time.
why would imperial be inherently easier to assess? if you talk about roughly the same range of measurement there wouldn't be a difference. It might be that it is easier to assess for you, but probably only because you are more familiar with it.
When measuring a person's height, the imperial system uses 2 different values mixed together: somebody may be 5 foot and 11 inches while another is 6 foot and 1 inch. I can't tell which one is taller based on those measurements at first glance because you gotta recalculate to one value first. Seems the first one is 180.34cm and the second one is 185.42cm. Far easier when you only need to compare one value against another without any calculation, isn't it? Even though 5 foot and 11 inches may sound/look taller (because of the big number for the inches), it isn't. Also in the imperial system, you can't simply say that 1 gallon of water is 1 cubic foot or weighs exactly 1 pound, can you? We can in the metric system. 1 liter of water weighs exactly 1 kilogram and is 1 cubic decimeter. In imperial, 1 gallon of water is about 4.54 liters, while a cubic foot is about 28.3 liters and 1 pound of water is 0.45 kilograms. You need a calculator to calculate it all because you can't simply convert one value to another. There is literally no imperial measurement that you can simply compare to another. Someone took some measurement like an el, which is the distance between their hands when the arms are stretched outwards. But that measurement is different for everybody. Even with tools, it's far easier to see which one is bigger: 5.5mm drill or 6mm, or even 8mm. In imperial, you would have divisions upon divisions like 5/16, 3/8, 3/32 and so on. You basically have to recalculate everything to the same divider to see which one is biggest. 3/8 is the same as 6/16 so 3/8 is slightly bigger than 5/16. No need for that using the metric system.
@@powerpc6037 I agree that the metric system is far more straightforward but at least your hight example isn't great. We have many instances where we look at the first value as the bigger one and the second as the smaller one.
You wouldn't think that someone who is 4 years and 11 months is older than someone who is 5 years and 2 months, would you? It is the same with feet and inches.
I was born in Canada in 1966, so I initially learned the British Imperial System, then began learning the Metric System in the late 1970s, and then immigrated to the US in 2000 so I then needed to learn the US Customary System. I can say of the three the Metric System is by far the best! In your other video you talked about the cost of the US switching to the Metric System but you ignored the cost of supporting two systems! There was a NASA Mars mission that failed because of a conversion error and a commercial jet that needed to make an emergency landing because it had only half the required fuel because of conversion error! That is why American scientists and engineers have all switched to the Metric System and all US Customary System units are officially defined in terms of Metric units! Metric is uses base 10, except for time which they kept base 12 because 12 is divisible by 1, 2, 3, 4, 6, 12. When Americans go to the grocery store everything is listed by law in both US Customary and Metric and when buying medicine that is likely to be in Metric. So in a sense the US is already on the Metric System but most Americans don't realized that to be the case.
Much easier to understand, much easier to read, less confusionary. Also more precise
Of course, here's the part 2 🤣
Interesting that through hands on experience I noticed that using metric is more accurate when I measure things using my digital dial caliper. As such I will use the metric and then just convert the measurement to imperial units once done.
From the land down under they say we are using Bananas, lol.
You do use Bananas? i thought you use australian imperial: koala bear foot. every day you learn something new :D
With CAD design for 3d printing it's much easier to use and visualize metric for me. i would go decimals over fractions any day, and metric saves the hassle of converting imperial fractions to decimals to input into most CAD programs, which don't usually have fractional inputs.
Not just 3D printing... everything is easier.
@@brianfhunter yessir.
It's not just the multiply/divide by 10, it's also the crossover to other measurements. Distance cubed = volume = weight. 1,000 cubic centimetres = 1 litre = 1 kilogramme. So what goes for one goes for all. How many cubic inches in an ounce? And is that an oz or a fl oz?
It's just two different languages - Many Americans are familiar with two different measuring systems just like many Europeans are familiar with multiple languages. How about doing a series on on decimal vs. binary vs hex ?
Funny. We will be mocked for not knowing multiple languages despite not needing them, but also mocked for knowing multiple measurement systems 🤣
As a German Machinist/Toolmaker i prefer the metric System, of course. But i also have tons of imperial tooling and use it daily. I´m used to both systems after nearly 50 years in that trade. As a restorer, i use both systems permanently too, due to many items from earlier times have imperial in it.
Yeah, try ro break a 1/8" tap compared to M8. Love those.
01:11 megabyte, with a y.
Great video and thanks for spreading the word, esp. to the American audience ♥️
As a fabricator/welder/machinist from England, born in the late 60's. I have used both, and I have to say hands down Metric is far better. The reason is simple...everything is a multiple or a division of ten. There are no fractions where you need to use a reference chart...It's just decimal places. The only area that the Metric system falls down is in Plumbing and gas/air fitting etc...In all of the Metric threads there is nothing that replaces the BSP/BSPT threads and all across the world these fittings are used from the Imperial system.
"From the micron to the megabyte" Of all things you could've mentioned, you mentioned an exception. A megabyte is 1024^3 bytes (1,073,741,824 bytes) rather than 1000^3 like the other ones. This is because it's easier to use with binary.
Not true. A Megabyte is 1,000,000 byte. A Mebibyte is 1024^3 bytes.
@@thecouchpotato4652 you are correct here
"A megabyte is 1024^3 bytes (1,073,741,824 bytes)..."
Eh, whats 3 orders of magnitude between between friends? 🤷♂️
@@onradioactivewaves I meant millibytes...
@@onradioactivewaves no, Megabyte is 1000^2. Mebibyte is 1024^2
💯 agree I. Always hated going into my tool bag and look for different sizes. Always liked metric.
I remember this topic in my trade assistant days in the aircraft industry, an engineer told me the metric system had a finer tolerance in measurements.
Here in Croatia we only ever use inches to express the diagonal of a display. Kelvin is sometimes useful for temperature but everything else is metric.
In my opinion is very simple…I see lots of imperial people say that metric is far better, but never see any metric guy tell that imperial is better😂
I see a lot of imperial people know both, and very very few metric people know imperial. It's like knowing two languages, it comes in handy.
@@tedundercarriage8183 well knowing metric is not a really great effort. if you can multiply by 10 and divide by 10, youre there
@@ozr2222 you're a fool if you think that's all that's involved in knowing a measurement system.
peoples only use imperial because it would be inconvenient to throw all your tools away
its annoying to transition
@@kurokami5964 Incorrect.
Being Canadian, I work with both. That being said, I think alot of it is due to the fact that alot of raw material is still made and sold via the imperial measurement. Once that changes, I think the measurement system will follow.
Here in Brazil, we work at same way, using metric to measure everything and using imperial system just to catalog raw material.
I like to mention Simon Stevin for inventing the decimal. Before him we use fractals: 1 apple - 1/2 apple 1/8 apple etc
I live in New Zealand, which went metric along with most of the world in the 1970s.
That said, there are plenty of tools based on legacy imperial units.
Battery drills use 1/4" drivers.
Socket sets come in 1/4", 3/8", 1/2" and 3/4" drives.
Wood routers use 1/4" and 1/2" diameter router bits.
Spade bits use 1/4" hex shanks.
Hole saws commonly use 7/16" hex shanks.
As someone from outside the US it's so wild to see you guys having to use fractions in order to get length measurements.
in a country where the 1/3 pounder at McDonnalds failed because people thought that 1/4 was more than 1/3 that is....
@@malte1984 😂
I am in the Canadian construction industry. I remember how much I wanted to use metric system when I first entered my trade because it was the superior system. It’s hard when everything your dealing with comes from the USA where the majority is imperial.
Same thing in Mexico
I am the only American born in my shop. all of my coworkers are from Romania, all of our components are from Germany or list everything in metric first. I have made the switch to metric for everything but speed. it was not hard.
How do metric martyrs use clocks or calendars with all those different units? 24 hours, 60 minutes, 60 seconds, 365 or 366 days in a year depending on what year it is, 28 to 31 days in a month depending on which month it is and which year for February. If they used metric then there would just be units, kilo-units, mega-units, etc.
Why is this video only 4:40 long and the Imperial one 6:28? You trolling metrics again? How dare you 🤣
This one is recorded in metric time! 😂
As a Mechanical Engineering student, I absolutely despise having to convert metric to imperial or vice versa during our exams. Its very frustrating when you know the equation to solve the problem but you cant come up with a final answer since the given data is in metric but the question requires an answer with imperial units and you forgot the conversion factors.
Edit: I realized that my comment can be out of the video's context. I apologize. Length and mass conversion in exams are easy, no arguing with that. What I actually meant was when you're working on problems with compound units involving forces, energy, mass, temperatures, etc., things get difficult and tricky really quickly. Add the fact that some of our professors give out too many exam items with a short time limit.
Divide or multiply by 25.4 🙄
@@larsmichaelmommer i think that would be too hard for an engineering student though.
@@machinist1337 😂😂. I know a lot of great engineers, but they’ve worked with some pretty good machinist or have spent time in a shop to understand manufacturability 😂
Been there. Length is the easiest to convert tho. When it comes to freaking force or mass units and there you are deciding weather you have to convert kilograms to slugs or pound-mass ugh. Or when you have compound units that involve energy and absolute temperature scales (Farenheit to Rankine to Kelvin but answer is in Celcius) anyways, yeah.
@@machinist1337 No, it's not that hard. Engineering curricula in the USA are all standardized, they all include practically an entire semester of learning to approximate and estimate, and any engineering student should be able to convert mass and distance at the very least. It does suck, but we're not incapable of learning it.
UK here. We use a mix of both. Mostly metric with occasinal miles, horsepower and pints thrown in.
[10/27/22] We're kind of lucky up here in Canada bc we have to be well versed in both the Metric, and the English systems (We tend not to call it Imperial, well bc it has imperialistic overtones. lol ). We also call it US Customary, bc of course, it's still used extensively by certain US industries. Interestingly, the ultra modern F-35 fighter program uses the English system, so all the international subcontractors had to re-adapt themselves to English in order to produce the components to spec.
metric all the day...✌✌❤
Knowledge is power, and being comfortable with both systems is better than being only able to deal with one or the other.
but if one system is significantly worse than the other it's just a waste of time and energy to be able to work in both. Metric is better in all aspects so why should I learn Imperial?
@@saaaammmi obvious troll is obvious.
@@theKashConnoisseur Are you telling me I'm a troll ? Sorry I'm confused. If so how is it trolling to point out an old outdated system? Or are you telling me you're a troll? I'm obviuoulsy not US american or from the other two countries that still use imperial.
Don't feed the trolls, folks.
@@theKashConnoisseur Ok mate I'm starting to think you and me have a differnt definition of trolling. Have a nice internet day.
Aussie here & was just old enough to start learning the Imperial system but then they switched over to metric which is so much easier to work with, i do like the comment about smashing a very expensive satellite into another planet because someone stuffed on the Imperial to Metric conversion.
As a aircraft engineer unfortunately most things are in imperial when it comes down to fasteners etc. so I had to learn to use it and get used to it. But luckily in the maintenance manuals a lot of values are set out in both imperial and metric, eg: damage limitations, torque values,…
For ease of use I will always use metric, so much easier and as you mention in the video more accurate.
Also there is no standard in the imperial system, what I mean is in the metric you have the master kilogram,… imperial values are based on a set metric value. Like 1 inch is 2,54…… cm etc
So in India we end up using metric for all industrial applications, and imperial units of length(inches and feet only) for anything that's not necessarily syper important (area in sq.ft, room sizes in feet, height in feet, small object heights in inches only in conversation but not when actually measuring for which we end up defaulting to centimetres. Some of the older gen hand carpenters use inches aswell). For larger distances, we use km. So I'd say we are more familiar with meters for distance than length of objects.
Metric. Work smarter, not harder.
Thanks to John Wilkins, an English scientist member of the Royal Society, who in 1668 defined the basics of the universal measurement system. The metric system was adopted in most of the world only after 1850.
The thing is, every society had their own system of units before metric, and many still use their traditional units to some extent alongside the metric system. The nice thing about the metric system is that it's something that the whole world can understand. Most Americans haven't heard of the li (the traditional Chinese equivalent of a mile), but both Americans and Chinese can understand kilometers.
Imperial threading makes no sense lol and I always have to think a bit harder to know how big my fractional inch drill bit is. That said, sometimes it's useful how the imperial sizes are slightly under or over metric hole sizes so u can use that for rough tolerancing