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I Calculated Absolute Zero With Vodka 

Steve Mould
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You can find absolute zero experimentally by taking a fixed amount of gas and measuring it's volume at different temperatures while keeping the pressure fixed. It makes use of the ideal gas law (pv=nRT) or Charles's Law.
Image and video credits:
Expansion of the universe animation - NASA's Goddard Space Flight Center
Jesus - Cicero Moraes
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17 июн 2020

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Комментарии : 2,3 тыс.   
@SteveMould
@SteveMould 3 года назад
1) OK, so I didn't know there was such a thing as "absolute hot" or Plank Temperature. Interesting! 2) There's a typo in the footnote. It should read "trippple point of watter". The sponsor is NordVPN. Get 70% off a 3 year plan with this link: nordvpn.com/steve and use the promo code "steve" to get 1 additional month free.
@addmoreice
@addmoreice 3 года назад
Just an FYI, there is a maximum temperature. The first one is when an atom can't hold electrons on, we call that a plasma, but we usually consider this fine. The next is when the atom shakes so hard, there is so much energy in it, that the atoms fall apart into a proton-neutron 'soup'. This is a real absolute limit (they aren't atoms anymore). The next after *that* is when so much energy is in there, the protons and neutrons fall apart into just quarks, making a quark-gluon plasma.
@noraxi
@noraxi 3 года назад
YES, Celsius
@cyphern
@cyphern 3 года назад
@@addmoreice And after that, Kugelblitz!
@TheDoh007
@TheDoh007 3 года назад
trippple point of watter? hmmm
@YounesLayachi
@YounesLayachi 3 года назад
Did you not watch Vsauce's video about "how hot can it get" ? 🙂
@ma5t
@ma5t 3 года назад
My lab professor used to say "a week in the lab can save you an hour in the library!"
@davidgustavsson4000
@davidgustavsson4000 3 года назад
Stealing this.
@shadowfall2011
@shadowfall2011 3 года назад
But. An hour in the lab is worth a week in the library. This makes no sense. A working knowledge of something is always worth more than a theoretical knowledge.
@orlandomoreno6168
@orlandomoreno6168 3 года назад
@@shadowfall2011 mmmmmmmmmm............
@scwfan08
@scwfan08 3 года назад
@@shadowfall2011 r/woooosh
@rolandcaters7258
@rolandcaters7258 3 года назад
@@shadowfall2011 an hour of actually working in the lab, yes. But you need to set up the lab, figure out how to measure the results, ETC, so yeah
@hibcode
@hibcode 3 года назад
“Not on the Fahrenheit scale, that is stupid.” - Made my day
@torstenbehrendt870
@torstenbehrendt870 3 года назад
Only fools are still on Fahrenheit!
@waiitwhaat
@waiitwhaat 3 года назад
That's all the happy internet i needed for today
@Johnny-wv9cn
@Johnny-wv9cn 3 года назад
Wouldn't Fahrenheit be more accurate?
@WillowBriansdottir
@WillowBriansdottir 3 года назад
@@Johnny-wv9cn what? just because its units are smaller doesn't mean it's more precise... unless you're rounding, lol
@Johnny-wv9cn
@Johnny-wv9cn 3 года назад
@@WillowBriansdottir I'm not sure what you mean by units being smaller but objectively faherenheit is more precise. You have more numbers and you can determine the temperature of something with better accuracy.
@soberhippie
@soberhippie Год назад
You know, I am a bit of a scientist myself. I remember that time I used vodka and got to the point when I stopped moving or even jiggling about.
@TheDigigram
@TheDigigram 3 года назад
I'm so glad you didn't get -273.128 or something like that. So many videos make it seem like the first go was perfect, but I love how you explained your experimental errors, tried to rectify it etc. Otherwise future potential scientists might feel put down when their experiments doesn't work out 100%
@naota3k
@naota3k 3 года назад
10:59 one bottle for calculating absolute zero, another bottle for reading the comments after the video goes up.
@Lunch_box
@Lunch_box 3 года назад
Cause absolute vodka is trash
@EebstertheGreat
@EebstertheGreat 3 года назад
@@Lunch_box Absolut tastes fine, just significantly worse than other vodkas in its price range. It tastes like Skyy, which is still pretty good.
@pilotavery
@pilotavery 3 года назад
@@EebstertheGreat This. It tastes like Skyy but Skyy is cheaper.
@bdf2718
@bdf2718 3 года назад
And a third bottle after he reads the comments from people who thought he was trying to inhale alcohol vapour and warning him not to do that because it's dangerous.
@bcurrie9511
@bcurrie9511 3 года назад
And if he runs this channel as a legal business(paying tax etc.), he could claim that bottle of vodka back on tax?
@darius2640
@darius2640 3 года назад
great choice, vodka has been helping people achieve absolute 0 on the scale of dignity for ages
@xtreme_dummy
@xtreme_dummy 3 года назад
Dignity? What is that newfangled thing?
@peterpimmelmann3330
@peterpimmelmann3330 3 года назад
I'm an alcoholic
@owenhall5742
@owenhall5742 3 года назад
I feel attacked
@sheepketchup9059
@sheepketchup9059 3 года назад
Disagreed
@Bizzybugproductions
@Bizzybugproductions 3 года назад
@@peterpimmelmann3330 do you know Jesus?
@leophoenixmusic
@leophoenixmusic 3 года назад
I did something like this at Physics A-Level, I got 0K=-600°C 😭
@thefountainpendesk
@thefountainpendesk Год назад
I did the same practical and got -420°C
@miroslavpetr9350
@miroslavpetr9350 Год назад
@@thefountainpendesk Well we used our chemical engineering measurments and reverse engineered the pi number for fun and it turned out to be 17 according to our measurments
@MrSpikegee
@MrSpikegee 3 года назад
Steve, love your nerdy videos - you’re basically fitting a line: y = ax + b using two points which gives you both a and b, thus a graph would have helped the explanation.
@thePronto
@thePronto 3 года назад
"...if you're trying to work out something for yourself, it's helpful if someone has already done a much better job." said no Fellow of the Royal Society ever.
@SteveMould
@SteveMould 3 года назад
Underated comment!
@shambosaha9727
@shambosaha9727 3 года назад
@@SteveMould Now it's not!
@SteveMould
@SteveMould 3 года назад
@@shambosaha9727 we did it!
@drug.3797
@drug.3797 3 года назад
Lol!
@alastairdouglas1737
@alastairdouglas1737 3 года назад
This is the sort of honesty we need from science videos! Schools, take note!
@Treblaine
@Treblaine 3 года назад
"No such thing as negative jiggle" you've never seen me dance. Well, attempt to dance.
@tmhchacham
@tmhchacham 3 года назад
I knew it was a challenge just waiting to be broken.
@arikwolf3777
@arikwolf3777 3 года назад
Jiggling out of phase with the music is *_not_* negative jiggle. Steve is correct in stating that there is no such thing as negative jiggle.
@Treblaine
@Treblaine 3 года назад
@@arikwolf3777 Is there anything closer to negative jiggle than phase cancellation?
@arikwolf3777
@arikwolf3777 3 года назад
@@Treblaine: None that I can think of. Phase cancellation is zero jiggle and still not negative. But when I attempt to dance, I am not totally of phase, I am more like 3/4 time when the beat is 4/4 time. 😏
@lumbric4271
@lumbric4271 3 года назад
:DDDD
@okcjaeda4499
@okcjaeda4499 2 года назад
"There's no such thing as negative jiggle." This is my new favorite phrase. I need this on a t-shirt with the lattice of molecules and Steve's face to go with it.
@Nickelodeon81
@Nickelodeon81 3 года назад
"There are a number of ways to improve this experiment" Yeah, drink the vodka.
@0xCAFEF00D
@0xCAFEF00D 3 года назад
That's one way to increase the confidence in your results.
@JayPixx
@JayPixx 3 года назад
Underrated
@nikanj
@nikanj 3 года назад
I can just imagine the huge grin on Steve's face when he went to the bottle shop to purchase some vodka for this experiment and saw the bottle of Absolut Vodka.
@SteveMould
@SteveMould 3 года назад
I was so happy!
@e.1220
@e.1220 3 года назад
Haha
@RFC-3514
@RFC-3514 3 года назад
I can just imagine the huge grin on Steve's face when he went to the bottle shop to purchase some Absolut Vodka, and realised he could pretend it was for an experiment.
@ChasenR
@ChasenR 3 года назад
@@RFC-3514 underrated
@McFrax
@McFrax 2 года назад
That reminds me of a story from my highschool chemistry teacher. While working with some group preparing for a competition, they ran out of ethanol. Some pupils were 18 already, so she sent one of them. We can only imagine weird looks when a girl in school uniform went on the middle of the day into a beverage store and asked for a bottle of pure alcohol. 😅
@yiannissiantos127
@yiannissiantos127 3 года назад
When your wife finds your Vodka bong and you have to devise a story that it's all for "an experiment"
@Beestification
@Beestification Год назад
"...if you're trying to work out something for yourself, it's really helpful if someone else has done a much better job". Words to live by.😁
@SPAJ92
@SPAJ92 3 года назад
I love this as it goes through the trial, error and improvements that people can make in experiments.
@evansaschow
@evansaschow 3 года назад
So -297 C is Absolute Zero on the Parker scale, also known as Parker Zero
@SteveMould
@SteveMould 3 года назад
Yes! The Parker Scale! I love how I can try but fail to do something and it's still referred to as a Parker [thing].
@abm8017
@abm8017 3 года назад
Steve Mould Always
@Hirosjimma
@Hirosjimma 3 года назад
Now I wonder what a Parker VPN would look like...
@bwheatgw
@bwheatgw 3 года назад
So, the question is this... is "The Parker Effect" being defined by your failures/near misses, rather than your successes? Or is it not yet good enough for an "effect" (See the Mould Effect for a successful example...)
@gcewing
@gcewing 3 года назад
@@Hirosjimma The Parker VPN is extra specially secure, because it scrumbly-wumblies your beep-boops using quadruple rot-13.
@aryehouminer1235
@aryehouminer1235 3 года назад
Great video, thanks! I didn't read the 1.7k comments above, so it may discussed earlier. However, another problem in the 1st experiment was the different head of vodka between the two temperatures, causing the pressure not to be constant.
@RFC-3514
@RFC-3514 3 года назад
2:17 - Strictly speaking, the man's name was Celsius (not Celcius - and the other man's name was Planck, not Plank). Also, 0 was the boiling point while 100 was the freezing point (yes, Celsius's original centigrade scale went the opposite way). Also, molecules still "jiggle" at absolute zero. It's called zero point energy (and is why helium never freezes, for example, and just becomes silly instead).
@covya
@covya 3 года назад
"I calculated Absolute Zero with Vodka" -154 "I was drinking the vodka"
@derstef8032
@derstef8032 3 года назад
That's the better way to use Vodka experimentally ! Cheers body !
@christianheichel
@christianheichel 3 года назад
Maybe he was trying to calculate the proof of the vodka and got his positive and negative sign mixed up?
@nocullough
@nocullough 3 года назад
This is the content I need.
@applePrincess
@applePrincess 3 года назад
He is *mistakingly* swallowing the liquid.
@christianheichel
@christianheichel 3 года назад
@@applePrincess I would explain why he got -154 instead of absolute zero
@adamrobinson9150
@adamrobinson9150 3 года назад
"There's no such thing as negative jiggle". Steve Mould, 2020 Please put this on a t-shirt
@sschmidtevalue
@sschmidtevalue 3 года назад
Negative jiggle can be observed on spring break in certain locations. 😉
@alexheighton3145
@alexheighton3145 Год назад
I would love to see a collaboration where Steve talks about negative jiggle, and then Louis Theroux appears and starts rapping how at 0K his atoms don't jiggle jiggle
@sbouchillon
@sbouchillon 2 года назад
Using a glass syringe with a spinning glass plunger reduces the friction of the plunger to near zero giving even more accurate results. Good job. Very enlightening. Keep up the good work.
@andrebartels1690
@andrebartels1690 3 года назад
Well... wow, that was really impressive. I would never have expected the syringe experiment to turn out that accurate. Well done!
@noorahmadshinwari4053
@noorahmadshinwari4053 3 года назад
That was the best definition of a vpn that I ever heard.
@1978Maedhros
@1978Maedhros 3 года назад
Ahahahahah Ahahah Ahahah
@VyvienneEaux
@VyvienneEaux 3 года назад
Let me guess: VP/n = RT?
@paulbelson2236
@paulbelson2236 3 года назад
Yarp..
@shoam2103
@shoam2103 3 года назад
I wanna upvote, but 200 likes!
@DiDe273
@DiDe273 3 года назад
I just can't listen the whole thing...I'm laughing too hard 🤣🤣
@MrBloody22
@MrBloody22 3 года назад
Actually there is no year 0 in our historical calender system. The calender goes from year -1 to the year 1.
@Hirosjimma
@Hirosjimma 3 года назад
Which is really annoying. And for some reason writing tools usually assume the same if you make a fantasy calendar
@danielchmiel7787
@danielchmiel7787 3 года назад
yes, because Romans didn't have the concept of "0"
@LAM_G80085
@LAM_G80085 3 года назад
Honestly it's bout timee we get a better calender and dating system Having 27 days in February and 28 every 4 years is stupid plus the dates go 30 and 31 every month for no reason except ofcourse july and august
@danidish2342
@danidish2342 3 года назад
@@LAM_G80085 no we have 28 days in february usually then account for the quarter of a day lost each year(because it doesnt match the earth making a full rotation around the sun) by adding a 1 more day to 28 each 4 years.
@irok1
@irok1 3 года назад
@@LAM_G80085 Yeah, definitely time to switch to a new calender system if you use one that has 27 days in February
@bartgillis4352
@bartgillis4352 3 года назад
Really done nicely. Very informative, very demonstrative 👍
@SirDoggyJvla
@SirDoggyJvla 3 года назад
Since I'm studying thermodynamics, it was a really interesting video for me, thank you !
@integza
@integza 3 года назад
Vodka Bong got stuck in my head at the beginning of the video
@ThePoliteCreeper
@ThePoliteCreeper 3 года назад
I thought I clicked the wrong video at the beginning.
@joaovictorsilvafreitas1708
@joaovictorsilvafreitas1708 3 года назад
Ey, its Intezga
@nakulankurmullam2982
@nakulankurmullam2982 3 года назад
Ugh tomatoes will die in Vodka bath Would u like to try it
@garryghibli5993
@garryghibli5993 3 года назад
I hear penne vodka is very tasty!
@rajanlamichhane3095
@rajanlamichhane3095 2 года назад
Integza, have you heard of something called a tomato vodka 🍅?
@tejing2001
@tejing2001 3 года назад
Props for including the bad result from the first experiment. It's good for people to realize how hard it is to do accurate experiments. You already said this in your pin, but in case anyone missed that, there is actually a theoretical limit to how hot things can get. Also, I love your description of VPNs at the end. For a sponsor message, that was incredibly entertaining.
@notfeedynotlazy
@notfeedynotlazy 9 месяцев назад
Of course, that means he'll never get tenure at Hardvard
@IntegralKing
@IntegralKing 23 дня назад
I loved the gradual improvement to experimental setup and the reminder that Physics is not equations in a book, but reality and what's happening right in front of our eyes. But at the same time, subject to all the failures and variation of doing things for real. I would have also tried to dither the syringe, pluck it and push it to get the upper and lower bound of the "stickiness" of the syringe, or tried to do the liquid volume calculator with a non-volatile liquid like mercury
@rockymountainfacet5958
@rockymountainfacet5958 3 года назад
You are an inspiration to me Steven. Thank you for all your videos.
@benjaminlum5894
@benjaminlum5894 3 года назад
Experiments like this, where you put yourself in the shoes of a cutting edge researcher, really puts into perspective how much effort and confusion scientists and researchers in the past went through in order to find out what many nowadays regard as just numbers we can look up. If this doesn't put a perspective on the phrase "taken for granted", I don't know what will. Well, other than food, water and electricity of course...
@Borderlynx
@Borderlynx 3 года назад
Scrumbly wumbly beep boops, beautiful, so eloquently put!
@xtreme_dummy
@xtreme_dummy 3 года назад
It came from my thingymejig Its a superclever thing how the beep-boops are Scrumbly wumbling
@Matiburon04
@Matiburon04 3 года назад
I was sure he was saying big boobs
@oscarcacnio8418
@oscarcacnio8418 3 года назад
And apparently the captioning algorithm agrees with you, Fiaca...
@johncrwarner
@johncrwarner 2 года назад
I am now trying to remember what we did in the lab over forty years ago to demonstrate Charles Law I remember getting a lot of plots so a lot of measurements were taken and we were quite amazed that most people got a very similar extrapolation point I seem to remember it being necessary to have dry gas but the precise set up eludes me.
@SupaDanteX
@SupaDanteX 3 года назад
When trying to work something out, it's always nice if someone has done it before you, and better. That's a mood right there.
@jeremystanger1711
@jeremystanger1711 3 года назад
Your videos are more engaging than Brian Cox's high production value documentaries. Somehow you always manage to find more interesting science in your kitchen than he does in the entire universe. It's amazing that you can take such an apparently simple concept, expose its subtleties, explain them, and then illustrate them with an experiment, all in the space of 15 minutes!
@jacksonpercy8044
@jacksonpercy8044 3 года назад
It's good because being shown something that you can replicate yourself in your own home makes the information seem much more accessible and credible.
@hammerth1421
@hammerth1421 3 года назад
We did that in physics class by heating a sealed tube with a pressure sensor and a thermometer at one end. Based on the linear relationship between temperature and pressure, we were able to find absolute zero as the zero of the linear regression of our datapoints.
@dmitriiemelianenko8531
@dmitriiemelianenko8531 3 года назад
Do you recall how accurate were the results?
@hammerth1421
@hammerth1421 3 года назад
@@dmitriiemelianenko8531 I think we had something like -271°C. Still not that accurate but far better than this approach.
@Macieks300
@Macieks300 3 года назад
So what you did was an isochoric process instead of the isobaric process as shown here.
@xidarian
@xidarian 3 года назад
Did you use something like nitrogen to make sure you didn't get any condensation on the cold end? That should improve the accuracy.
@BlameItOnGreg
@BlameItOnGreg 3 года назад
As soon as you went for a liquid seal, my immediate thought was that vapor from the liquid would really mess things up. Glad that hypothesis was true.
@ononearts
@ononearts 3 года назад
That was the most entertaining of your videos I have seen so far... not to imply it’s the absolute pinnacle you’ve attained (or will attain), because I haven’t seen all your work BUT, in my relatively pathetic sampling of your output THAT was most fun. Ta!
@deepspace
@deepspace 3 года назад
Something just hit me. You said that the reason we can heat something indefinitely is due to temperature being a function of the speed the atoms jiggle in. So, isn't there a limit for this speed? Can the atoms, in theory, jiggle faster than the speed of light?
@mikavanbeek5253
@mikavanbeek5253 3 года назад
I just had the axact same tought
@coyotedomino
@coyotedomino 3 года назад
Vsauce has a video called “How hot can it get?” in which he talks about an absolute hot. There’s actually a temperature, called the Planck temperature, at which the wavelength of the thermal radiation an object gives off would be shorter than the Planck length. So there has to be an absolute hot. If i recall correctly, tho, this would take more energy than we know of in the universe, and of course the atoms would dissolve into their fundamental particles at energies like that.
@ericvilas
@ericvilas 3 года назад
The temperature actually depends on the kinetic energy of the jiggle, not just the speed. If the atoms were to jiggle at the speed of light then the energy (and thus the temperature) would become infinite. We can keep on increasing the temperature because we can get the atoms to jiggle closer and closer to the speed of light, but never reaching it. Also quantum mechanics does put a limit on maximum temperature but that's a different matter
@youkofoxy
@youkofoxy 3 года назад
They are not longer atoms after a point. Now, if they keep mass, that means the more you heat the sample the harder is to make it hotter.
@lostbutfreesoul
@lostbutfreesoul 3 года назад
My thought was along these lines: Eventually you are going to cause those atoms to 'jiggle' themselves apart! Super-colliders produce temperatures close to 10 trillion degrees for a reason....
@Finallybianca
@Finallybianca 3 года назад
Opening shot. Looks like someone knows how to take a big bong hit
@Arcelux
@Arcelux 3 года назад
Absolute zero bong hit!
@ericchambers9023
@ericchambers9023 3 года назад
Quaranteen looks to be hitting him pretty hard these days. Wonder if he's also home schooling kids? That'll drive anyone to hit the bong pretty hard.
@AguaFluorida
@AguaFluorida 3 года назад
@@ericchambers9023 Given Steve's all-round practical capabilities, he'd have no trouble growing himself some pukka ganja.
@CYI3ERPUNK
@CYI3ERPUNK 3 года назад
always great stuff steve ; never stop being awesome dude
@trouty7947
@trouty7947 3 года назад
chromostereopsis might be a fun thing to do a video on. Its an optical illusion created by red and blue colours (and green to some extent) near each other, it looks like red colours float on top on the blue colours by quite a bit. Really cool 3D effect. Its caused by the refraction of light changing depending on wavelength, so they appear to be in different positions. The effect only works with both eyes, closing one stops it. Looks so cool aswell.
@JTRumpet491
@JTRumpet491 3 года назад
The sponsorship is hilarious, and even more so with captions on.
@rookrook7697
@rookrook7697 3 года назад
Scumbly wobly the big b**bs
@TheOneRiv
@TheOneRiv 2 года назад
@@rookrook7697 As an update, it now says “scrambling rumbling the big boobs”
@Niki1A_
@Niki1A_ 2 года назад
To be fair, I also kept understanding that instead of "Beep Boops" when I wasn't specifically paying attention.(Even after I got what he was actually saying.)
@JuliusUnique
@JuliusUnique 3 года назад
1:21 not the Fahrenheit scale, that's stupid hahaha so true
@RicardoMontania
@RicardoMontania 3 года назад
Fahrenheit is way more precise. That's just a fact.
@Karrppu
@Karrppu 3 года назад
@@RicardoMontania In what world do you live in that a temperature can be more "precise"? It's a flat out worse scale scientifically lmao
@anandsuralkar2947
@anandsuralkar2947 3 года назад
@@RicardoMontania no its not
@Gakulon
@Gakulon 3 года назад
One of the only reasons people hate Fahrenheit is because while in Celsius water freezes at 0, it freezes at 32 in Fahrenheit. However, if we were to just adjust the Fahrenheit scale by lowering it by 32 degrees, which we already do when we convert from Fahrenheit to Celsius, then that eliminates the issue most people have with Fahrenheit, giving us an Improved Fahrenheit scale where water freezes at 0 degrees and boils at 180 degrees. And since 9 Fahrenheit degrees are equal to 5 Celsius degrees, with this Improved Fahrenheit scale we can get finer temperature gradients like the regular Fahrenheit scale with a more consistent freezing and boiling point like Celsius.
@arand4
@arand4 3 года назад
@@Gakulon Why do we want a scale that is based on the freezing temperature of a solution of brine made from equal parts of ice, water and a salt (ammonium chloride)? why not just use decimal points in the centigrade scale? I find that to be a way better solution.
@M_J_I
@M_J_I Год назад
Hey Steve, in your second experiment, one possible reason for the lower value (apart from measurement errors and the piston friction) might be the humidity in the air in the tube, since you used room air that has humidity that will condense at freezing temperatures, leading to lower temperature derived for absolute zero
@Blackmark52
@Blackmark52 3 года назад
"If you're trying to work out something for yourself, it's really helpful if someone else has already done a much better job." Words of wisdom that are truly funny.
@izaichuk
@izaichuk 3 года назад
If centigrade is anything with 100 gradations between freezing and boiling points of water, then Kelvin is centigrade too, isn't it? :)
@SteveMould
@SteveMould 3 года назад
Good point!
@alastairbutterworth3495
@alastairbutterworth3495 3 года назад
Yep, by definition it’s based on the centigrade scale. It’s the centigrade scale adjusted so zero is absolute zero not the freezing point of water. That’s all it is .
@mathewnehemiahiype6391
@mathewnehemiahiype6391 3 года назад
Yup... It's just a shifted Kelvin scale
@mr3sepz
@mr3sepz 3 года назад
Idea for a Video: You can show the difference of light speeds in different mediums and the therefore changing angle of refraction by the colour change of demirorred glasses in water (orange, red) in contrast to air (green). Worked with every demirrored glasses I tried so far and makes a visually interesting effect since the reflected colour of the white light changes.
@kevinjpluck
@kevinjpluck 3 года назад
Come on brain, he typed: "de mirrored" glasses not "demi rorred". Get it right.
@kevinjpluck
@kevinjpluck 3 года назад
Ok, what are demirorred glasses? The google doesn't help.
@jacksonpercy8044
@jacksonpercy8044 3 года назад
I haven't heard of de-mirrored glasses either
@mr3sepz
@mr3sepz 3 года назад
When you wear glasses and the sun would be sort of behind you, the light would reflect and you couldn't see, because you would be blinded sort of. (English isnt my first language, I am sorry) Therefore to prevent this glasses are often coated several layers of some material, which prevents this. In german we call it "entspiegelte Brillengläser" You can notice this trough a slight green glare or reflection from the glasses. In my physics A-level we learned sort of how this worked. The layer reflects some light and lets the other pass trough. The light wich passed trough will be reflected in the layer below and then shine out of the glasses again. The trick is to make the layer just thick enough so that the lightwave is shifted half a wavelength and therefore cancels out with the light which reflected at the first layer. This is of course a simplification, but it works and can eaven be used to explain the effect I mentioned. Because the light is refracted at an angle you can calculate how thick the layer should be, but when you put the glasses into water the angle changes, since it is dependent on the lightspeeds of the two media. So the angle changes, therefore the way and length the light passes trough the layer changes. Therefore now the orange wavelengths who cancelled out earlier are now visible and the green is not visible anymore.
@mr3sepz
@mr3sepz 3 года назад
Maybe the english word is anti-reflective glasses
@mohammedsaeed7488
@mohammedsaeed7488 2 года назад
Thanks a lot for the impressive and thorough explanation Steve! I will surely need to come back several times to this video again. One question though: could one reason for the discrepancy in the absolute temperature value in the syringe experiment be related actually to the assumptions of the ideal gas law, which you used for the estimate? I remember that one assumption for the ideal gas law is that there are no interactions among the gas molecules in space. We know that this is not really the case though. As a result, the ideal gas law works best at relatively high temperatures and low pressures, at which the interactions between the gas molecules are the lowest. Hence, Could using the ideal gas when measuring the temperature of the vodka in the cold bath have contributed to the underestimation of the value of absolute zero? Your insight is highly appreciated. Thanks a lot!
@blockhead1899
@blockhead1899 2 месяца назад
I love how you actually do the scince instead of just speaking about it.Makes it easier for me to understand how scientific experiments are done.
@RemikPi
@RemikPi 3 года назад
Correct me if I'm wrong, please but I don't think you can increase temperature indefinitely. If the hotter body emits shorter electromagnetic waves then you hit the Planck length of the wavelength at some point or the Planck time of the wave period. And that limits the maximum energy of the body.
@vincentbensch7164
@vincentbensch7164 3 года назад
What you are describing is the plank temperature at 1.416785(16)×1032 K. We don't know that it is impossible for an object to be hotter, our understanding of physics just ceases to function.
@RemikPi
@RemikPi 3 года назад
@@vincentbensch7164, thanks for answering. That makes sense.
@olmostgudinaf8100
@olmostgudinaf8100 3 года назад
It is also possible that the black body radiation equation we know and love is incomplete..A bit like the Newtonian physics before Einstein. It is a good enough approximation at low temperatures ("low" compared to Plank temperature, that is), but may need a correction at higher temperatures, sort of like Newton's equations need a correction at relativistic speeds. Based on what the correction is, the "absolute hot" may be nowhere near the Plank temperature. It may even be infinity.
@BlueBetaPro
@BlueBetaPro 3 года назад
Hello, allow me to introduce myself. Call me Designator, I am the metaphysical multidimensional beep boop likeness of an assembled subsistence beyond your cosmium, universe and multiple degrees of delineation of any reasonable astucious accumulative insight into this makeup. Anyways enough of this confabulatory poppycock, I have come to your scrubly wumbly disarray corner of this cosmic universe to relay to you that my mixtape is indeed the hottest thing there is.
@RemikPi
@RemikPi 3 года назад
@@olmostgudinaf8100, thanks for that addition. You sound like being true.
@handlecanbeanything
@handlecanbeanything 3 года назад
1:20 👍 "Not on the Fahrenheit scale, that's stupid" Made my Day
@JCtheMusicMan_
@JCtheMusicMan_ 3 года назад
Steve, your lab experiment was successful as long as you gained a greater understanding of the relationship of the variables in the equations. Even though many scientific discoveries have already been made, practical learning creates a better understanding. I love your curiosity for science!
@JHKartingUK
@JHKartingUK 3 года назад
"because im an arseho-" lmao
@VinayVarsani
@VinayVarsani 3 года назад
The captions from 15:43 onwards make it 10x funnier than it already is 😂
@MrMattie725
@MrMattie725 3 года назад
I like this short video/long video rhythm! Gives us great quality with the longer ones
@robertdubard7959
@robertdubard7959 9 месяцев назад
Im impressed with the way you explained one of the errors in the alcohol experiment WITHOUT using the term "partial pressures"
@StevensSounds
@StevensSounds 3 года назад
"Not Fahrenheit. That's stupid." Americans: *angry pingu face*
@clark523
@clark523 3 года назад
Not even. Most of us don't even really like it, and would get used to the new scale within a month if we were forced to switch
@josephgauthier5018
@josephgauthier5018 3 года назад
As an American, I agree with Clark, except for the only taking a month part
@Tensho_C
@Tensho_C 3 года назад
@@josephgauthier5018 its gonna take alot of time for all your devices to change to celcius, and a bunch of riots will happen on how it violates your constitution's or whatever
@timbeaton5045
@timbeaton5045 3 года назад
@@Tensho_C They would rename the Fahrenheit scale, the Freedom Scale!
@Draconic74
@Draconic74 3 года назад
@@Tensho_C Most of them are in Celsius anyways. I can't think of any electronic I have that doesn't have a setting, or any thermometer I've seen that doesn't display both. We could even feasibly switch to kilometers and the biggest hurdle there would probably be road signs, not vehicles. Maybe if the US wasn't so damn big, it is a lot of road to cover. More likely it's the hurdle of fanatic nationalism, even though we didn't invent this system. You'd think that sort of person would have more in common with a tea-dumping patriot, and distance themselves from the European-created Fahrenheit and the English-invented foot and mile and gallon and cup.
@snowbofr3ak
@snowbofr3ak 3 года назад
I can't thank you enough for doing what you do. You walk a fine line of education and entertainment and you do it quite well.
@hazemkhaled4759
@hazemkhaled4759 3 года назад
I am 14 from Egypt and I have been watching u for months and I really love your vids
@SteveMould
@SteveMould 3 года назад
Thanks!
@hazemkhaled4759
@hazemkhaled4759 3 года назад
@@SteveMould ❤️
@chuckymcnubbin1518
@chuckymcnubbin1518 3 года назад
Interesting conversation with one of my neighbours a few weeks ago. He said "You're like that Steve Mould guy on RU-vid". I asked what he meant. He replied " you're smart enough to figure shi...ahh.....stuff out for yourself and you're always happy to share what you learn and know but you do it in a way that's easy to understand". I said "Yeah, Steve is excellent like that." 👍😉 Thanks Steve. Cheers mate.
@SteveMould
@SteveMould 3 года назад
Awesome!
@jonathanwykoff1858
@jonathanwykoff1858 3 года назад
Improve the experiment by adding a pressure gauge to the syringe. You can adjust the plunger to adjust the internal pressure to atmospheric pressure before taking a volume reading. Thus eliminating the error because of friction of the plunger against the walls.
@RudyOMP
@RudyOMP 3 года назад
This was essentially an A level physics class😂
@MattFowlerBTR
@MattFowlerBTR 3 года назад
Yes! Except more fun (for me anyway) because I wasn't trying to learn or internalise anything, just go "oh yeah this feels a bit familiar" and enjoy the ride.
@jadoei13
@jadoei13 3 года назад
Should've been p V=N Kb T to be classify as physics :)
@xgozulx
@xgozulx 3 года назад
@@jadoei13 nah
@Chlorate299
@Chlorate299 3 года назад
Hey Steve, there was no year zero - 1BC was followed by 1AD. The concept of zero as a number hadn't been invented when that Dionysius chap was alive.
@user-vx8qt9cd8o
@user-vx8qt9cd8o 3 года назад
Wow dude, you just blew my mind! I didn't know that. I am a software developer, and the min value of the type DateTime is first of January of year 0001 and not 0000, but it never clicked for me, until now..
@xtreme_dummy
@xtreme_dummy 3 года назад
Roman times... They were the best!
@killerbee.13
@killerbee.13 3 года назад
Actually, in ISO 8601, there is a year 0, aka 1 BC. And ISO 8601 year -1 is 2 BC
@Metalhammer1993
@Metalhammer1993 3 года назад
Perfect experiment for first semester chemistry students. Definitely talk to our physical chemistry professor about that one in physical chemistry lab in first semester.
@pierreolivierlepage
@pierreolivierlepage 3 года назад
Great video about absolute zero and perfect gases. But, Loved the VPN explanation.. the humor of it made me listen to it!
@mattshaw5179
@mattshaw5179 3 года назад
You should have gone outside a plane, I've heard is cold there!
@nico889944
@nico889944 3 года назад
1) Farenheit: That's stupid 2) Logical representation of Jesus Absolute madlad. I'm a fan.
@xtreme_dummy
@xtreme_dummy 3 года назад
We usually call it "Englishmen" down where I live, but sure!
@joemck85
@joemck85 3 года назад
A possible way to deal with friction in the syringe: Use a force meter to pull the syringe with a set number of newtons, release, and record the volume. Then push it with the same number of newtons, release, and record the volume. The average of the two readings should be a more accurate measure of the real volume at 1 atm. Or even possibly do the same but record the volumes when pushing and pulling.
@stephenbenner4353
@stephenbenner4353 3 года назад
“That is not terrible,“ but it seems like you’ve been hanging out with Matt Parker a bit too much.
@coin777
@coin777 2 года назад
1:20 Hah instatnt like
@chair547
@chair547 Год назад
Fahrenheit is an absolute scale. 0F is zero of something- zero reason to go outside
@igorfedik5730
@igorfedik5730 3 года назад
That was the best explaination of VNP principle ever!
@AnExPor
@AnExPor 2 года назад
I love how critical you are of your experiment. Science!
@somethingwithbryan
@somethingwithbryan 3 года назад
Ah yes that's why I have this vodka too
@xtreme_dummy
@xtreme_dummy 3 года назад
Coolest Vodka in the world
@SupremeLeaderKimJong-un
@SupremeLeaderKimJong-un 3 года назад
The Russian way of measuring things
@SNX1881
@SNX1881 3 года назад
Somniarez with nuclear bombs
@acameron87
@acameron87 3 года назад
SN X 1881 will this piece of furniture fit in my living room? *blows up house attempting to measure with a nuke It will now!
@joeshmoe7967
@joeshmoe7967 3 года назад
@Somniarez " How do North Koreans measure things? "......With bad haircuts.......
@robbeandredstone7344
@robbeandredstone7344 3 года назад
How do I see you everywhere?
@paulclifford6941
@paulclifford6941 3 года назад
Steve, Another interesting and easy way to extrapolate to absolute zero is to measure the electrical resistance of metals, which is generally proportional to absolute temperature. For ductile metals without many defects, like platinum, the linearity is rather good. They are about as "ideal" resistors as gases are "ideal" gases. So, if I put a platinum wire in ice water (in fact, I can use a platinum RTD made for this purpose) I measure 100.0 ohms, and if I then place it in boiling water I get 138.5 ohms. That gives an absolute zero of -100*100/(138.5-100) = -259.7C Not great, but as good or better than trying to measure gas volume ratios!
@silvenshadow
@silvenshadow 2 года назад
I loved the video, and the ad was both accurate and hilarious. Best.
@ajreukgjdi94
@ajreukgjdi94 3 года назад
Did Jesus have a friend named Wilson who got lost at sea?
@Richardincancale
@Richardincancale 3 года назад
2:18 You could’ve put three ‘p’s in Triple Point rather than just two 😁
@KaliTakumi
@KaliTakumi 3 года назад
But there's already a p in point
@AguaFluorida
@AguaFluorida 3 года назад
@@KaliTakumi I think you've missed the point... 😁
@Sharkness77
@Sharkness77 3 года назад
@@AguaFluorida You mean the pppoint
@SamEden
@SamEden 3 года назад
You could have used a method analogous to that used by machinists in zeroing out backlash with the syringe. Before measuring, compress the volume and let it normalize; that should mean that the pressure is constant at each measurement since the static friction should be close to constant (assuming you don't get cold enough to drastically affect your lubricant and seal) and the pressure area is constant.
@scootergem
@scootergem 3 года назад
wow first day trying this channel, i love it
@BryceKenny0425
@BryceKenny0425 3 года назад
I love how he said "I could measure it in farenheit, but that's stupid". Thank you Steve, thank you.
@toptarantula
@toptarantula 2 года назад
I find it amazing that the USA, the richest most powerful nation, still insists on using the stupidest units for everything.
@LeglessWonder
@LeglessWonder Год назад
Yea. Using something outside of its best use, and then blaming the thing, is very stupid lol. Also, it’s Fahrenheit
@spexbeanfarmer
@spexbeanfarmer 3 года назад
Steve def smoked a bong or two in uni xD
@ve-noesnoaxs7575
@ve-noesnoaxs7575 Год назад
In the 1st experiment, the constant a cannot be a constant because the pressure in the container you are cooling also changes. Namely, in the beginning you have atmospheric pressure, then you cool the container and you pour the vodka into the container, before the new pressure p1+hydrostatic pressure (ŕgh) becomes equal to atmospheric pressure. This is how I understood the setup of the experiment, I apologize if I misunderstood.
@rooster700rr
@rooster700rr 2 года назад
So I love your vids but one of the things I am coming to appreciate the most are the random stops in the video to explain the origin of a word like centigrade. It gives some nice insight into how our world came to be what it is and weirdly helps me make extrapolations on other words. (usually followed by a quick google search to see if (my brain aligns with the world around me) I'm correct.
@kosmaslemo
@kosmaslemo 3 года назад
0:05 "Steve, open the door right now, young sir!" "Honey, hes doing science again!! What are we going to do... :'( "
@tategeiger5317
@tategeiger5317 2 года назад
Not a lot of RU-vidrs actually do a “formal” experiment like this. Usually I’d find doing this type of thing tedious and boring, but this was so cool! Thanks!
@SebDowntown
@SebDowntown 2 года назад
i like that you showed how far the first result was. pura vida.
@jannebengtsson7338
@jannebengtsson7338 Год назад
"...well not the farenhet, that's stupid..." 🤣🤣🤣 You made me giggle my good sir!
@bas2362
@bas2362 3 года назад
So are thermometers like spedometers for atoms?
@mirohradsky
@mirohradsky 3 года назад
I’m always left with an absolute zero in my bottle of vodka...
@xtreme_dummy
@xtreme_dummy 3 года назад
Same here... Was it you?
@thePronto
@thePronto 3 года назад
The trick is to not leave the bottle out where teenagers can get to it.
@mirohradsky
@mirohradsky 3 года назад
Pronto only if the teenagers were the problem 😂
@DEtchells
@DEtchells 3 года назад
Someone probably already suggested it, but mercury would eliminate the issue with alcohol’s changing vapor pressure. (Second-order effect: make sure you adjust the height of the mercury reservoir so the level in it and the cylinder stay the same.)
@DFPercush
@DFPercush 3 года назад
I bet you could get accurate results if you accounted for the vapor pressure of the liquid. That would be a neat experiement by itself. But also, the height of the reservoir might be introducing a bias if it's different than the height of the liquid in the cylinder. Neat video in any case.
@itwasinthispositionerinoag7414
@itwasinthispositionerinoag7414 3 года назад
7:57 9:35 Welcome to Steve Mould's experimental half hour
@luizftavares
@luizftavares 3 года назад
"So Magnus plays 1.e4 and it was in this position that the opponent resigned"
@EldariusGG
@EldariusGG 3 года назад
1:43 There are no degrees on the Kelvin scale! Since the Kelvin scale is a scale of absolute units they are referred to as "kelvins" rather than "degrees kelvin."
@ViktorBautistaiRoca
@ViktorBautistaiRoca 3 года назад
Exactly! He excuses for saying centigrades but talks about grades on Kelvin scale!
@RFC-3514
@RFC-3514 3 года назад
He didn't refer to them as "degrees kelvin", at least not at the time stamp you provided. He said the degrees (meaning subdivisions) on both scales are the same size. A degree is a common noun with a meaning, it doesn't have to be part of an SI unit's name to be used in a sentence. In fact, it would sound rather stupid to say "a degree on the celsius scale and *a kelvin on the kelvin scale* are the same size", wouldn't it...?
@EldariusGG
@EldariusGG 3 года назад
@@RFC-3514 I hear you, but saying "a degree on the kelvin scale" is equivalent to saying "a degree on the meter scale." It's valid English, but it's just as redundant as saying "a kelvin on the kelvin scale." There is a single word for the concept that those statements are trying to convey, and it's in the statement already!
@RFC-3514
@RFC-3514 3 года назад
@@EldariusGG - No one measures length in _degrees,_ and there is nothing known as "the meter scale". That analogy is nonsense. Steve's use of the word is absolutely correct in English. A degree in the kelvin scale is called one kelvin. It is still _a degree in the kelvin scale_ (meaning a step in that scale), it is not "a kelvin in the kelvin scale".
@ViktorBautistaiRoca
@ViktorBautistaiRoca 3 года назад
@@RFC-3514 «A degree Celsius is the same size as a Kelvin.» Does it sound stupid? BTW, do you mean I can say «a degree metre»?
@endleontiozae7061
@endleontiozae7061 2 года назад
I find him saying "Not farenheight, that's stupid" I love that it made me laugh.
@beryllium1932
@beryllium1932 Год назад
You'll find using Celsius easy if you focus on 20 degrees, which is room temp (68F). Each ten degree shift is a different clothing situation: 0 freezing 32 10 cool 50 20 indoor 68 30 warm 86 40 hot 104 Body temp 37
@rphrph167
@rphrph167 3 года назад
This should be shown in schools!!.. I had a physic teacher that did similar non unit demonstrations and learnt heaps!!..
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