William Osman Had a Pet Squirrel - Safety Third 46
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- Опубліковано 27 вер 2024
- Patreon: / safetythird
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@William Osman
@NileRed
@TheBackyardScientist
Safety Third is a weekly show hosted by William Osman, NileRed, The Backyard Scientist, Allen Pan, and a couple other UA-cam "Scientists". Sometimes we have guests, sometimes it's just us, but always: safety is our number three priority.
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"don't trust me in a high pressure situation" is the funniest joke nigel didn't even mean to make
For sure an on purpose pun but no one even laughed
lmao
This podcast is 50% Dangerous Shit, 50% UA-camr Therapy, and I’m here for all of it.
Will-You just survived a category 8 hurricane
Kevin-Oh I thought u meant the squirrel attack
Not gonna lie, thanks. Copy pasting this as I send the link to people made it easier to share.
@@MrHeroicDemon no problem
Quite an opening lol
I like how it’s Kevin’s second venture into the world of rabies, classic.
I’ll surprised there hasn’t been more ngl, also 69th like
I think getting rabies is part of the classic "Florida man" journey... Kevin is just following his local traditions...
Florida man gonna do Florida man things
Man deals with rabies like it's the common cold 😅
@@henriquelopes5080 😅
Hey Kevin, network technician here. The reason you still had had fibre internet during the hurricane is likely because your fibre connection is using GPON, a passive, no electricity needed system. ADSL, VDSL and CATV copper-based networks need power to amplify, convert to fibre, split or modulate the signal from the phone exchange or CMTS to your house.
your fibre is just all light being split and combined using optics and wizardry. even if a copper customer on the other connections had power at their house via generator, the street boxes, amplifiers, modulators, exchange etc would also need power along the way
GPON being wizardry confirmed!
those old ladies taking down 5G towers did nothing wrong.
illuminati or something /s
I'm a SOC analyst studying for my Network+, this is super cool!!
@@garbagetrash2938 there are active home fibre networks too that do need active amplification and distribution, but they're not as common for residential installations, only for commercial stuff
that's actually so cool, so it's all passive from the networking center to your house?
To coerce helium into a liquid at 30ºC you would need to pressurize it to 16,600 psi.
King
@@williamosman no you
does it not just deposit to a solid tho?
@@tacobuns4085 yeah so I have this code from on old class I took to calculate saturation pressure according to deviation from ideality using the peng robinson equation of state it can’t calculate a saturation pressure at 25C leading me to believe it’s solid at thag temp bc the preos can’t describe solids only gasses and liquids
Ouch
NileRed at 56:15 on Supercritical fluids: "This is not my Specialty"
Also Nigel: Spends all of winter 2019 building a steel and glass pressure vessel apparatus to film 3 minutes of supercritical liquid CO2 footage while making aerogel. 🙄😜
to be fair if it was his specialty he'd just be doing that but literally all the time
the more you know, the more you know you don't know
kevin repping crime pays but botany doesnt is the crossover i needed
I watch this podcast so I can pretend I'm learning something. When most of the actual educational discussions leave my brain immediately lol
the hyper obscure item with the EXACT dimensions you need can only be found in southwestern china in a back alley, being used as a footrest. good luck getting it.
Do a Mark Robber mock of the squirrel course in Florida with rabid squirrels powered by gas generators
Gas powered squirrels 😂
I really want to like this comment, but I cannot disturb the 69 likes
But it has to be during a hurricane for full Florida
I work in spacecraft design and processing and your helium story is literally what I live. Imagine like 6kpsi at like 1000cubic feet. It's insane the logistics on these pressurized gases
Buying crude oil: It seeps out of the ground naturally in Los Angeles near the La Brea Tar Pits. The buildings in the area have a problem where it collects in their basements. So they have to pump it into storage tanks and transport it away. You could probably talk to a building owner or maintenance guy and get some. Or you could just go to the tar pits. There is a park where the oil just comes out randomly. Like watch where you step because there can be a oil puddle.
@breewaldenwomanizerforlife9341yes
I love how Kevin survived the hurricane but cares more about a crazy squirrel attacking him
I did not think I could be grossed out by disemboweled earth worms. I was wrong. You have been warned. Link to the earthworm peeling machine video: ua-cam.com/users/shortsKLzhzIBu8YE
wtf
I’m so thankful that I’m naturally desensitized to things like that
Why did the music make it so funny to me
the talk of BTUs in natural gas is true. you could be off by 100 BTUs per cube foot (mostly methane some ethane and lighter stuff). I was told in a gas heating class that you had to call up the gas company and ask them what their BTUs were that day. the instructor said you will be on hold for a long time and they probably will not have a answer for you.
Such an underrated podcast, what a banger episode
I love how the Among us figure is done and now something else is being made behind Kevin
20:00 "The environment is nature's bin"
- Tom (Explosions&Fire)
Squirrels have mites in the south Eastern states during this time of year it can cause big open sore where they scratch themselves
For a mock research project one year, I made a whole project about replacing helium with hydrogen. It ended with proposing to petition the government to ban candles and really anything with an open flame within a 50 ft radius of a party hat.
William Osman + 🐿 = best buddies(and rabies, probably)
= squirrel pox lol.
@@bczarrockbeast6264 one very *small* furry and cute pox
Came over from my podcast player just to see the sticker. I don’t know what I expected…but I’m not disappointed.
So, according to the van der waals gas model, to fit the same amount of helium inside a CO2 cartridge as there normally is CO2, you're going to need to pump it to 66 MPa. Which is would not require any crazy wall thickness, probably an inch of mild steel would already do the job, but you still have to get one hell of a powerful pump to overcome 66 MPa. And yet, this equation is merely a model, so expect the pressure to be slightly different. Converting it to psi, you get about 10,000 psi which, sure, is doable, but its probably gonna get really fucking expensive
I like how and where they do this change from time to time to mix it up
Thanks, now my google search history includes the "Earthworm skinning machine video".
Critical point temperature of helium is so low you'd never liquify it at room temperature regardless of pressure.
The earthworm machine is litteraly the imagery I think of when I think of man-made horror with little to no use
i cant believe they actually talked about science for once at the end there
Just finished the Patreon extra and this came out! Yippie
1 liter of liquid helium expands to 750 liters of helium at 4.2 k if you assume no expansion from the 4.2 kelvin to 300 kelvin (room temp). Than at minimum you would need 750 atmospheres.
Super conductor go *brrrr*
Helium has a critical point of around 5K (-268C). Above you can not liquify it, at any pressure.
Also Helium has no supercritical phase. As mentioned by will it goes suprafluid at 2.17K where it looses all inner friction and can creep out of containers or climb walls.
@@brauchmernet talk about beating a dead horse, he already posted the video lmao.
this is easily my favorite podcast/webshow/talkshow whatever ... liie best from all of those categories and more.
on the generator; higher engine rpm does not mean higher fuel consumption. it's all about the load. plus, the governor on generators keep the engine at one specific rpm and adjust fuel based on load.
Putting liquid nitrogen in a steel container wouldn't work very well as a bomb (at least as a small one) because the gas could only expand at the speed of sound and it would cool as it expanded, which would reduce how hard it's pushing the steel pieces apart. Not only do the explosives in bombs expand WAY faster than the speed of sound (RDX detonates at Mach 24 for instance) but also the rate of acceleration, called brisance, give high explosives breaking power, that helps to fragment the metal casing. And Nigel is right. Helium has no liquid phase at room temperature, no matter how high the pressure gets.
Yeah I pretty much came to the same conclusion about the liquid nitrogen bomb halfway through that thought haha
Mexican fan who comment on I don't even remember what episode: thanks, yet again, for doing this podcast:) I just can't get enough of it. Once I stop being a broke student I'll subscribe to your Patreon, guys, promise!
Kevin said I suck . Brb taking his polaroid off my fridge.
There are lots of places/property owners with small defunct oil wells that you could definitely get some from without having to buy a 55g drum
8:30 you can plug your setup into a UPS for surge protection and battery backup. Should be able to span the gap for the generator to kick in. I use one to protect my 3D printer against power outages
helium is made from alpha decay because alpha decay is literally helium, and it is used a lot for MRI machines to cool the superconducting magnets in there
I remember when I got power back, 2 weeks after I got back in my home, 6 months later. Perks of rebuilding a 2 million dollar seawall lol.
To answer Will's questions:
1. How high should we pressurize Helium at room temp to liquefy it? The answer is n/a (there isn't a pressure high enough where you can liquefy Helium at room temp).
This is because the critical temperature of Helium is 5.26 Kelvin (i.e. the max. temperature where liquid Helium can exist). Room temp is approx. 25 Celsius = 298 Kelvin, which is way above the critical temperature of Helium. Pressurizing Helium at room temp will only get you a supercritical fluid (i.e. a "gas-liquid hybrid" which is not a liquid, as what Nigel shared in his supercritical CO2 video: ua-cam.com/video/JslxPjrMzqY/v-deo.html).
2. How high of a pressure to get the same moles of Helium in a standard 16g CO2 cartridge? The answer is ~6500 psi which will blow up the CO2 cartridge as it holds CO2 only at ~900 psi.
Using ideal gas law (we can do this since Helium compressibility factor -- i.e. measure of how far it deviates from ideal gas law -- is close to 1 even at high P) and taking the values (16g CO2 = 0.36 mol ; T = Room temp = 298 K ; V = 21 cm3 from various CO2 cartridge sellers), we get ~444 atm or ~6500 psi to get the same amount of Helium in moles of CO2. The 16g CO2 cartridge can hold ~900 psi of CO2, so we will blow up the cartridge if we fill it with the same amount of Helium in moles of CO2.
3. (Bonus) How many moles of Helium will we get to fill the CO2 cartridge without blowing it up? How many in grams? Less than one-seventh of the original moles of CO2 (~0.05 moles of Helium), or in terms of mass ~0.2g (i.e. less than 1% of CO2 mass in the same volume, temp, and pressure 😅)
From (2), as 900 psi is approx. less than 1/7 of 6500 psi, and keeping everything else constant, using ideal gas law we can immediately see that 1/7 pressure -> 1/7 of moles or ~0.05 moles of Helium. Taking the molar mass of Helium, we can easily convert this back to the mass and obtain the ~0.2 g of Helium.
my favorite squirrely boys
I swear these podcasts make my day
Worm machine video link: ua-cam.com/video/KLzhzIBu8YE/v-deo.html&ab_channel=WisdomofHuman
There is no actual phase Chang occurring with a supercritical fluid. Below the critical point energy will be absorbed as the gas liquifies, and there will be a liquid and gas layer. If you just compress the gas, it’ll eventually get to the same density as the liquid would be, but it’s still just a gas with an insanely high density.
Applied science has some awesome videos showing off co2 as it’s heated past the critical point where the density of gas and liquid is the same, and the boundary just disappears
Nigel's right about it being a supercritcal fluid at room temp. I checked REFPROP (fluid database) and at 300 kelvin, in order to reach the dencity of liquid He (100 kg/m3) it needs around 86 MPa (12500 Psi) of pressure, but it wint have the properties of a liquid
Nigel listed the critcal temp, but didn't mention the critical pressure of 2.2 bar, above both, helium is going to be supercritcal when bought in a tank. inreasing the pressure does increase the dencity (mostly) linearly, but thicker walls give deminishing returns in terms of max load vs mass of tank
its because earthworms are full of sand an dirt, you can only get rid of it slicing it the long way... Also the water cleanses the insides same time as lubricating I thing! BTW, I will never eat any kind of bug
But why???
By the way, they get Helium from the air. There is this Linde Prozess, which is basically liquefing air and then split it into it's parts ot get the good stuff....
40:00 he is not allowed to say it but he is talking about the automatic **** milking device.
thankyou, how did you know?
I don't know if Kevin knows this fact and that's why he brought it up, but using nuclear bombs is actually a legitimate way to stop natural gas leaks. What you do is drill a hole next to the source leak pipe, lower a nuclear bomb to a specific depth, then detonate it. The shockwave it creates underground will collapse the leaking pipe, thus sealing it, and the wind blast it transmits to the surface can also blow out any burning natural gas fires.
To answer the question of why can't we nuke cyclones/typhoons/hurricanes, it's because they are just way too damn powerful. The energy of these storms are measured by the energy released in nuclear detonations. I've heard that one of the US east coast's hurricane has more energy than every single nuclear weapon on earth. So you can't just blow it out with a nuclear bomb, it's like blowing out a forest fire with a leave blower.
airbag force would really mess up a phone, the envelope is set to slow like 800 pounds applied by the face & upper body before it deflates. a springloaded case that unfolds could do a lot
59:27
Politician moment.
Fibre lines are in fact underground, beside being more weather resistant it also prevents the light from blinding everyone nearby if the cable breaks. This is why you need to be really careful not to hit a line when digging a hole as you will go blind and won't know until a few days later when your vision starts to go. It's also not on the visible spectrum you you can't tell anything even happened
In my area the fiber lines are strung on telephone poles along with the cable lines. They're not going to blind you unless you stare directly into them at close range.
@@ZanHecht these are probably really specific cables, hanging them on poles gets super expensive and they have to be maintained especially in winter. It's probably lower power local lines or something that needs to be accessed regularly. Also don't encourage carelessness for something you haven't worked with. A fracture in a high power cable can be dangerous up to 15 or 20 feet away. Plenty far enough to be dangerous to someone who has no idea what's going on, though most modern cables are being installed with a system to automatically shut them off now some still don't and you should be careful
Some scuba gear gets up to 10,000 psi but its a heavy af carbon fiber steel composite. 16.6k PSI for liquid helium would be wild to store.
Kevin got that CPBBD drip.
You guys almost hit on it. Project Rulison in Colorado. They used an underground nuke to mine for natural gas. It worked and also made the gas radio active...
25:30 - I believe that it was FEMA- but they put out a report on using nuclear weapons to stop hurricanes. It's definitely worth looking at.
helium can't be condensed to a liquid at room temp because its critical point is at 5 K so above that it's going to be at most a supercritical liquid even at high temps.
Yay, I love you William Osman!!!!! Totally not a simp.
Helium is used to keep stuff like superconductors super cold for things like NMR and MRI machines
Thanks for another hilarious podcast! These always make my day :>>
Will should know about natural gas storage, due to the Porter Ranch incident, in the San Fernando Valley, near him, only a couple of years ago.
As far as crude oil, its sometimes, under pressure. Sometimes not. Look at all those oil pumps, all around the Los Angeles area. When I worked in Gardena, there was a fenced in pump, on every block, and the associated buried pipelines, to the refineries.
Great episode guys. Love these podcasts.... bit biased as I'm into fluid dynamics.
Earthworm castings are used for gardening
so the thing with phase diagrams there are first and second order phase transitions, first order is the normal one you think of which is a discrete change from one phase to another like water freezing or boiling. first order transitions are lines on the phase diagram of temperature vs pressure that separates the two phases. a critical point is when one of those lines just ends in the middle of a phase diagram. because the line ends you can go from one phase to another without crossing the line, by going around the critical point. this is a second order phase transition because where you start and end are regular gas/liquid phases but you have to somehow continuously transition between them, ie pass through a supercritical fluid phase.
the critical point is a particular temperature AND pressure, not just a temperature. just look the phase diagrams, there are different paths through the 2D phase diagram by changing temp and pressure and you cant always just substitute low temperature with high pressure
We also pump water underground for aquifer recharge or storage.
Salt domes is where we store gas in louisiana
A PC with a beeft graphics card is going to use 400-600watts depending on the rest of your setup. That's 2-3 fridges.
You're bringing me back to a dark time in my chem degree...pchem
I haven't seen any video's pop up in a long time, Glad I came across it.
It's like the molecules are annoyed at each other. They have so much energy already and they just want their space, so they don't bond with each other. Basically the gas is screaming to be let out because you put them under so much pressure and their so annoyed with each other because each molecule has a independent mindset. It's like their way of protesting by not turning into liquid.
I can’t stop thinking about the fucking earthworm skinner machine and I haven’t even seen the video
For crude oil, just go to any trades place that buys crude oil with a container and 20 bucks. they wont give a shit lol
why don't you just ask Michel wear he got his crude oil from? cause I believe he bought like fourteen barrels for a white elephant party for OLTV.
i not sure about the rabies thing with the squirrel but i know that some squirrels carry the black death
… is the machine william is talking about some sort of sex toy???
I think I know what it is, and the answer is sort of.
@@blockstacker5614 The great seed collider.
If Safety is the third, then what's come the fourth?
If you spend $3000 for a generator it may or may not be able to run a central AC but if its juat like 1 or 2 window units you could run most of your lights that are led because they all are now and the fridge isn't that much but if your generator can start you central ac it can probably run most of the stuff you need
High quality content guys
where is the merch store?
I really wish I didn't look up that worm skinning machine...
Aside from having to use petrol a car and power inverter sounds like a better option than a generator and you have a battery.
What's the machine that looks like a portal turret with a pink center that they wete talking about?
Styropyro has one too!
A rabid squirrel? 🤣 JK, I remember seeing his squirrel friend on one of his recent videos.
DREAM looks like the McDonald's Moon Man.
About the super critical pressure limit (how much you can pump into a tank): There definetly are multiple hard limits to that question ^^
At some point the electrons/protons will collapse to neutrons, formind neutron-star-soup, which no longer is helium 💩
After that, ofc, at some point, everything collapses into a black hole
you just make the helium super cold -291c . atmospheric pressure. yes ,i assume just like liquid oxy. it warms and creates pressure in the tank and produces gas. it will vent off some of the pressure if not relieved by use so it doesnt get too high. you can buy liquid helium tanks just like liquid oxy. they are thicker and heavier for more pressure. the pressure has nothing to do with the quantity of liquid helium because some of it turns to gas and creates the pressure and keeps the rest liquid. this continues as you use it until its gone
sucks that the discord sever is part of patreon
Can someone link the worm vid?
Worm video at 26k now
please someone link the earthworm machine video
heh I have a waterjet that I can run whenever I want for like $1/min at my makerspace. coulda cut them knives out for just the cost of materials plus like $40
Didn't nigel do a video on critical points and super critical fluids?
Hey, just wondering, what form of listing supports the podcast more? Spotify, Apple Podcasts, or UA-cam?
150 cubic feet at 2000 psi is 5-600 dollars
39:58 Jimmy Neutron and Caretaker!
For the natural gas thing, maybe if they don't fill the hole with something, the hole will eventually collapse since it was held by oil which is not there anymore.
Does anyone have the link for the worm slicer 5000
ua-cam.com/video/KLzhzIBu8YE/v-deo.html&ab_channel=WisdomofHuman
Oh God the word "HAD"
Squirrels, hurricane, and helium