Can a lemon charge a phone? (2 Truths & Trash)
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- Опубліковано 5 вер 2024
- Let me know in the comments how you did. Did you like the addition of non-experiment videos?
Here's a list of questions answered in today's video:
1. Does copper wire spin around a battery that is resting on a magnet?
2. Can you stack 3 dice on top of each other when the middle one is placed diagonally?
3. Can you create enough static charge with a pen can to attract the pen cap back onto the pen?
4. Can a paper clip float of the surface of a cup of water even though it is more dense that water?
5. Can you use a sharpie/pen to open a soda can by rubbing it back and forth on the lip?
6. What is the origin of the I/O switch on electronic devices?
7. Can you use a lemon to charge a phone?
8. Does the Eiffel Tower expand significantly based on the temperature?
9. Can copper wire with weights cut through an ice cube?
I think these videos are great for helping people learn to be more skeptical when watching videos on the internet. Great work!
are have the top commnet i both the episodes
@@hi-wf9ql if English is your first language please work on it, otherwise I understand
@@hi-wf9ql I'm sorry, I'm not sure I understand what you're saying. : )
@@geochonker9052 omfg i so fucking stupid- how did i write that? if you read my other comments you can see that i am not that stupid, and no, english is my second language
@@johannaverplank4858 i meant, you have the top comment on both of the episodes of this 2 episode series
Wow this 2 true 1 fake series is damn good, love it and keeps me waiting for your new uploads! Keep it up! (Got 2/3 correct tho 😄)
Same
This series not only hones skepticism in what can be done but also how things can be faked. That's half of what makes it so great.
3 for 3 this time! Imagine if lemons just suddenly gave off alternating current!
Simple AC to DC converters can take in DC just fine and will still work normally
@@specialopsdave Wrong way around bud
@@DrakeOola Right way around. Just draw a full bridge rectifier and think about it for a second.
@@DrakeOola Full bridge rectifiers will pass through DC or invert it's polarity if fed with DC
bro that 1 video where he revealed that oranges can emit electric current :/
I’m a physics student on break and was dying of anxiety hoping I had each one right. My life would’ve been a lie if I had them wrong
I loved these. I like to show these to my students and see their face as they're getting suprised.
The pressure caused by the weight of the bananas didn't melt the ice. The copper wire did by absorbing the heat in the room and transferring the warmth through the wire.
Right? When I saw the lemon one I knew it was fake but then when I saw the ice melting one I was really confused.
Absolutely true
This could be easily tested in a freezing environment. I believe the effect is there, but compared to transferring heat more effectively than the air, it is much weaker.
And because the ice will refreeze, you will at one point have the wire going through the ice block.
The fakt that ingenuo actually means gullible makes this funny in a way.
But also a little disrespectful
@@the_undead Only to people who are gullible.
@@bahamutdragons You would be surprised how many people who don't learn other languages would hear something like this and just believe it regardless of how gullible they are or are not. Especially when someone who tries to sell themselves as a source of reliable information like this guy is himself saying it, I don't care what the purpose is if you try to sell yourself as a source of reliable information. You don't do stuff like this cuz that completely destroys your credibility because what else are you not telling me?
the paper clip trick was one of my favorite to do as a child. i was really good at it too! it's easier to get if you bend a second clip and use it to lower the first unto the water. also, it's a really neat way to show how dish soap destroys surface tension; a few drops in a bucket of water and all of the paper clips will sink in one go!
great series... keep it coming. the lemon battery actually needs the copper and zinc plates to work!
Wouldn't it also not produce enough voltage?
@@josephritchhart998 yes so one would have to connect the copper and zinc plates/nails in series to up the voltage
On the last one, it depends on the type of lemons you use. We got big ones from the farmers market and they provide 120 V AC for about 20 minutes as long as you cut them while they are still pretty fresh. Gramma got electrocuted accidentally sticking her finger in one though, so be careful.
Yay I got all three right! I really enjoy these videos! This is the first time I've gotten any right, the previous ones have all been more difficult
Oh my god you grew after the last time I saw you you were at like 6k . I’m so proud of you well done and keep up the grind .
Thank you!
@@JaDroppingScience yeah no problem you deserve it
When life gives you lemons charge your phone
Btw, for those wandering ingenuo means naive in italian and ozioso means something close to lazy
0:12 you can also do this with aluminum foil. just put a magnet to the bottom of the battery, and roll up aluminum foil
I got the round two right only because I'm italian and "ingenuo" doesn't mean anything close to "active".
I was 99% sure it was a 1 and 0, but your explanation was too convincing. 😂
Isn't the last one 3rd one not due to pressure but because the copper conducts the heat onto tbe ice making it melt faster?
Both, and having it be copper wire helps it melt faster than if I pushed down with some other line/wire.
3/3, Got all 3 correct.
I got all 3 correct!
Damn I broke my arm pattin myself on the back....lol
Cool vid, thx 4 posting!
Well round 3 was a throw out as what he showed was the thermal conductive nature of copper and not actual pressure melting
The phenomenon where ice melts under pressure is called regelation, but I don't think this is the primary reason why the ice was melting in that example. Copper is a great conductor of heat, and that wire is very thick. I believe that most of the melting action is due to the copper transferring heat from the room into the ice.
Usually regelation is shown with a this thread or wire, so that less heat is transferred into the ice and the pressure the ice experiences is distributed through a smaller surface area, thus the ice experiences more pressure in the contact area.
Yeah also you need more weight for it than is given here, wirh that gage you'd be talking elephants of pressure is my guess it needs to be pretty heavy, this was just the conductor at work
2:00 as an italian, seeing "gullible" (ingenuo) written was a dead giveaway
Hey there: in the 2nd half there are actually 2 trashs. Yes Ice melts under pressure, but this is not happening here. Ice at -4°C can withstand about 500 atmospheres of pressure, or 500x 10m of water ontop of you, or 1kg per cm2. So you would actually have to muster up 500kg per cm2 for the ice to melt, which is (for most but not all humans) not possible because you yourself weigh less than 500kg. The ice here actually melts because the wire is just a good conductor of heat. The pressure of the bananas makes no measurable difference.
I just found your channel yesterday and I'm loving it lol. And I gotta say, the way you fake the false videos is almost more interesting than the facts themselves lol, you're one crafty dude
I’m completely shocked that you said blue was the worst jolly rancher’s flavor, I was convinced that was the lie
Finally someone agrees.
Wrong episode.
I think the explanation for why the ice cube is getting cut in half is slightly wrong. The copper is a better thermal conductor than the air around the ice, therefore it can capture and conduct more heat into the ice. You can try to do a time lapse with an ice cube melting on a metal plate vs a plastic one
You need upwards of a kilogram per square millimeter to have enough pressure to melt ice with that, and that's still just barely changing the melting temperature. I'd bet heat conduction played a bigger role there. Maybe when you first put it on there you could have that kind of pressure, but once the ice cube melts a little and matches the shape of that wire, that's a lot of square millimeters.
these videos a super cool, I got every round correct!
Some phone chargers have capacitors, you can fake it by pre plugging in the brick, and it will show its charging briefly when plugging in the phone
You acutally used Inspect Element! You crafty bastard, i was actually convinced!
I think there are two main reasons why the lemon charging the phone didn’t work. First is that there were no electrodes - for a lemon battery to work, generally you need two different metals (like copper and zinc) to serve as electrodes to get current flowing. Second, the current generated is very low.
I’m pretty sure the I and O are to represent closed and open circuts
Ice doesn't melt under pressure, it was just the copper wire transfering heat from the air to the ice cube, melting its way through. Since copper is more consuctive than air, it was able to slice through before the cube melted from the air.
If you put the same setup in a freezer, the wire will not cut through the ice, because it was the temperature, not pressure that cut the ice.
cool thing about the ice cutting one is if you use a thin enough wire (and you might need a bigger ice cube), the ice refreezes together above the wire, so once it makes it through to the bottom and falls out, you're still left with one solid ice cube
Well that didn't happen for why he said it did so that's kinda a problem, it wad the conductive nature of the copper, pressure can melt ice but you are talking weights measured in elephants and not bananas, instead we saw the metal work as a conductor and dissipate heat into a concentrated area on the ice cube.
You can break open the charger, remove the guts, stick in a couple coin cells, connect them to the cable, and use the lemon to complete the circuit. That will actually charge your phone a little bit.
The neat thing about these is that usually there's at least one that inquisitive kids will have figured out at some point.
The BIC pen cap launching trick just sort of happened when idly absorbing information in class, and your hands need something to do.
It holds charge? Sure, maybe, depending on the plastic, but not that much. XD
bro discovered perpetual motion
The lemon juice thing had an oversight which made it way too easy. Samsung got 2 charging animations. The one you showed only shows when the phone gets fast charged. If youre using an older charger that cant supply as much wattage the animation is green not blueish.
I enjoy these videos and sometimes its pretty hard to guess the fake. I don't always get them right, but in this video the fakes are way to obvious. These are fun though and good for learning. Keep 'em coming!
Lol the lemon was so ridiculous
the I O thing is from electrical schematics and it really isnt letters, it is supposed to represent a circle and a line. It is used to show what state a binary switch is in on an electrical diagram, the line represents a connection and the circle represents a gap.
Round 1: First one I knew was true, second one seemed plausible, third one seemed like too strong of an effect to be caused by static. Wasn't 100% sure though.
Round 2: First one I've seen, second seemed plausible, third I knew was fake only because I already knew why the I/O were there.
Round 3: You need dissimilar metals in the lemon to create power, so immediate dead giveaway and the other two made sense.
Well for round 3 he had 2 lies actually, c was also a lie, while it is true that pressure can melt ice you need a lot more than that to do melting, instead we saw the conductive nature of copper melt its way through ice, still cool and the video is legit but it's not from the pressure ( you need multiple elephants worth of weight to do that not bananas worth)
@@ConstantChaos1It actually can be done with a reasonable amount of weight, but a copper wire is too thick. An E string on a guitar actually works with a few pounds of weight attached.
@Owen_loves_Butters yeah but due to how weight distribution functions that weight requirement goes up quite quickly, in this case the thermal conductivity of the copper is a much more significant factor in any case.
I got all of them correct😮 Great vid!
Compared to the first one this was definitely easier to me, I got 3/3!
1:42 I thought it was to indicate flowing circuit vs non-flowing circuit?
AYYY MY SCIENCE TEACHER LESSS GOOOOO
Got them all right! It was a little difficult for 2taal 2 though
This is a really awesome series
1:25 If I and O standing for "ingenuo" and "ozioso" was true, Wikipedia would not have put that information in an image caption of all places.
The battery one does work, but current flows from - to + not + to -. - has the electrons and + wants the electrons.
did you ever make the simple lemon charger?
Also; having a basic understanding of basic scientific principles / the laws of the universe seems to really help. As they apply universally, and the more of them you internalize, the more diverse things-you-never-encountered-before can be identified.
But even then, sometimes there's a thing that feels right, and makes sense based on everything you know, but it ends up being clever trickery designed to exploit basic knowledge. The worst ones are combined with redirection! Oof!
Dang. The first one, I got all of them wrong, but this time I got all of them right. :)
The ice cube doesn't melt from the pressure, it melts from the copper pulling away some of the cold so that the ice melts
My predictions:
1. pen
I thought the "I" was a picture of a complete circuit, and the "O" was a broken circuit.
I got them all right!
1:48 me being Italian and knowing the real meaning of "ingenuo" and "ozioso"
round two, the one about I and O
Aw I thought it would be new ones
Great series regardless
Yes my lemon is now useful 🤣
For the second one i admit i did not even qualify, as i am from Italy. If you wish to know, ingenuo means naive, and ozioso, while more probable as it could have been used in that context in the 800, means lazy
it's ironic that you said the blue ones are the worst, because every teacher in my middle school used jolly ranchers as rewards, and everyone was obsessed with the blue ones and everyone would try and trade for them.
Get hooked by the shorts here 😆😆😆😆😆
I love these
(Truths or Trash) After plugging out charger from the wall, you still have some time to connect it into phone and start charging, (it might not work for all chargers)
The ice in the last one was cut by the copper melting the ice thermally not by the miniscule amount it is melted by pressure, to get that level of pressure you'd need multiple elephants worth of weight
I just want the lemon one to be real would be such a cool party trick lol
Until you stick your finger in a 120 volt alternating current lemon and get electrocuted because you forgot to hold a circuit breaker in your other hand.
I knew you used inspect element right when I saw the wikipedia page
4-0 baby missed every single one!
I nailed 2/3 rounds!
congrats on 1mil. subs
Very refreshing!
thermal expansion is why the towers collapsed
1:10 i thought the sharpie/soda can one was fake, but when i learned it was real, i went to go test it and it worked! science is incredible :)
Got right the first and thrid one but got wrong the second one, I though you were using a clip of a diferent material, the traduction of active and inactive did sounded weird since I am spanish and those two languages have a lot of common or similar words
Round 3 has 2 trash and 1 truth. Ice doesn't melt under pressure, in this case since you're using copper which is a highly conductive material (both electrically and thermally), the ambient air is putting thermal energy into the copper wire and sending it into the ice faster than the ice can completely melt in room temperature which in turn makes it seem like you're slicing the ice cube.
Except that ice does melt under pressure. Applying pressure condenses ice, which can force it into the denser liquid state. It doesn't work for most solids because for most chemicals, the solid form is denser than the liquid.
@@sophiastern2719 Take a look at water's phase diagram. Assuming the ice stays the same temperature and the material you use to apply that pressure does not conduct heat, you would need to apply 10MPa of pressure to even see the effect. The copper wire used looks to be 5mm and the estimated width of that ice cube is 35mm which give us a contact surface area of 1.75e-4 m^2. The average mass of a large banana is 136 grams, totalling up to just above half a kilo of mass, multiply by gravity to get the force which is about 5.33N. Pressure is F/A, so 5.33/1.75e-4 = 30495Pa, i.e. 0.03MPa which is no where close to enough. What the bananas are doing is assisting the melting process by constantly forcing the wire into contact with the solid ice so it melts more cleanly than leaving the wire floating in the melted ice.
Round 1 : I would say 3.
I was absolutely sure that the sharpy didn't break the can.
You forgot to turn off super fast charging on the samsung which can only be achieved by using a brick with the super fast charging chipset. You could tell it's on due to the blue charging animation with the two lightnings.
Ingenuo means innocent or gulliable, knew the answer instantly
I love this series
0:10 the UA-camr, Dave Hax done the battery one
bro put a history lesson in the middle of his science video
round one, number three
The second got me...
3rd one/pen cap
3rd one/Kettle
1st one/ lemon
I knew it!!
2:01 what launcher is that? or did you just make that pattern?
The lemon trick isnt fake tho
I got round 1 and 3 correct
im callin it now, round three question two: complete bullcrap
0:50 the third one was fake, I think. The first one is a phenomenon of which I’m aware and the second one at least seems plausible.
1:40 the third one would be the easiest for you to fake. Combine that with the fact that I’m aware of the phenomenon demonstrated in the first clip and the second just appears to be an instance of good ol’ metal fatigue and that leaves #3.
2:40 The first clip is the fake. I have a hard time imagining anyone finding that one convincing.
Amazing video as always
round three, lemon charger
these videos are cool, i love science
Great video
2:10 learned this in science
This video is great, except for the part when you called chrome dev tools inspect element. That is a pet pev of mine, and I don't know why.
I love these videos