Planck's Constant - Sixty Symbols

[mynameismatt2010]

Would this constant change if the speed of light is not the fastest thing in the universe?

Recent study of Neutrino's and Early expansion of the universe are evidence that the speed of light is not the maximum attainable speed possible.

[sebek23b]

OMG use yadif filter !

[motionapplied]

it's an "unimaginably number" if you're a compulsive homocentrist (not that different from a compulsive geocentrist). "small" and "large" can be seen as absolute - as well as relative. also: what does it have to do with imagination - which is like telling that a perpetuum mobile is possible.

[motionapplied]

Could you do a video about "why" and on what one can point with tis "why" - the past (why is her leg broken? because she fell.), the future (why does she wear a splint? because this will lead to a healing of the broken leg.), it can point at details (why is her leg broken? because the structure of the bone is too weak for absorbing such and such force.) it can point at the context (why is her leg broken? because an external force was applied on it.).

[cortona117reach]

IF ur interested in quantum physics, anti gravity or cold fusion check out Seattle4truth. He also goes over planks constant and it is very interesting.

[C1C0SS]

I like the Irish guy and the brunette girl the most. The smiley guy with the soft voice is pulling in a close third though.

[orthant]

Stay hungry. Stay foolish. Or else, you cannot see why I said that. -- Siri

[nb1616nb]

The constant is anthropocentric by its very nature - and relates to light - or the accuracy by which the physical phenomenon of light can be perceived by human vision. The question is not if nature is quantized by the quants of Planck, but that the observer (human) is limited in his/her accuracy by which to perceive nature in a PHYSICAL SCALE - a scale that intimately relates to the scale of human PHYSICAL SENSES (vision among others). How Planck figured this "accuracy" out is a mystery.

[IntravenousWolf]

ned kelly!

[orthant]

Nobody knows how Planck came up with the value 6.62607*10^-34 J*S.

[MusicalAndTall]

@orthant Planck does..

[orthant]

@MusicalAndTall It's a mystery. He never told us how he wrote down that number. If you could find out, you could get a Nobel prize.

[ajthrax1]

@orthant fool.... it matched the data

[mtksbctk]

@orthant the number fitted the experimental data from black body radiation measurement...

E=nhv

[casusbelli15]

If anyone is inspired enough to do an undergraduate physics degree you will find out that a lot of time during practical labwork is spent fiddling with archaic (but perfectly good) lab equipment, it probably took him at least 5mins to align the slit.

[Ace31323]

4:40 "We weigh 80 kilos"

Wrong. We weigh 800N.

[Tridecalogism]

@Ace31323 Correct I guess, but it wouldn't be an entirely informative video to 'simpletons' if everything was explained in terms used in physics etc like Newtons. They'd be like, What?

[J4YM5]

@Ace31323 lol, nice

[backhandable]

@Ace31323 Actually "we" would weigh 785.76 N, physics is far too complicated to round numbers up :P

[mpdp85]

ned kelly lol

[shield543]

brb changing plancks constant and then gonna refract out my door

[AlecBossler]

I don't always edit parts out, but when I say I do, I don't.

[Thetarget1]

h stands for Hilfsgrösse, meaning something like helpsize, or the magnitude of help.

[rogerdotlee]

@ispravljat If this is indeed correct, and I have no reason to doubt, I shall stand corrected. I was under the understanding that it was banned as 'hate literature' or something like that. Thanks for the offer to read, but I've already read it, and I'm not all that interested in wallowing in Hitler's self-indulgent, paranoid wankage. This, like many other things I have read, was used only as fodder for baiting people.

[Ihaveacatnamedrabies]

@teslarifle

I think the question is "Why is 'h' the symbol used for Planck's constant?"

[TeslaRifle]

at 2:18, what is the question?

[SirBallsack]

2:11 Behold! 'Tis the Lord of Evil!!!!

[domnal]

The younger scientist's pronunciation is all over the place.

He says thirty but tree (3) - why ? Also he says Haitch for aitch (h)

Then on other occasions he will use the interdental th !! I find it

very hard to take in any explanation with all that going on !!

[Ashcombeguy]

@domnal hes irish, its his accent, give him a break.

[Hamking1]

Is there a classical model for solving Planck's Constant?

Or are we still stuck with measuring it empirically?

[shintsu01]

LoL i notice more messups are kept in the eps what makes it more fun to watch :D

[Seth1210]

6.626x10 E-34

[HelmutVillam]

let's be a particle physicist and set hbar to 1!

[kungfusushi]

Successful troll is successful.

[cuntylishus]

@kungfusushi Successful troll is blocked :D

[Streety101101]

@kristijanadrian please, explain, i would like to understand how you came to this strange conclusion.

[Streety101101]

@kristijanadrian so you think im racist because im Australian?

[Streety101101]

@kristijanadrian huh...thats kinda sad that you see ppl as objects.... i feel sorry for you...

[Streety101101]

@kristijanadrian omg no wayz evry error, tats terrible wat wil EYE do?

[Streety101101]

@kristijanadrian i might be a little bit wrong here XP but im pretty sure Nazis were Marjory in Germany, also during WW2 Australia fought in the Commonwealth which was on the Allies side fighting against Nazi Germany. As interesting as your conspiratorial theory is the evidence clearly renders it nothing more then fiction. I think if you look at any country you will find racism. Australia is the most multicultural country in the world. Maybe you need to read a book and brush up on your facts :)

[Streety101101]

@kristijanadrian Me and my people? :s w8 im confused are you afraid of me because im Australian or because you think im a Nazi?

[Streety101101]

@kristijanadrian whats with your fascination with Nazis? im just curious to know,

[Streety101101]

@kristijanadrian who ever said i was human? :) ...

[Streety101101]

@kristijanadrian well if defending my pride makes me a nazi then so be it,i wont stand by silently as a victim of discrimination . tell me, do you generalize because your lazy or because your just stupid?

[Streety101101]

@kristijanadrian well you would have to be pretty unintelligent to actually believe that, its like how your father raped you dose that mean you will rape your son?

[Gonko100]

@kristijanadrian

go fuck yourself

[TomatoBreadOrgasm]

And you know who has George Gamow now? WE DO, BITCHES! Boulder, CO! Hell yeah!

Seriously, though, it's humbling to study at the same institution this great scientist spent his final years in.

[croutonfada]

Great video. Who was the Irish guy?

[Streety101101]

Ned Kelly is (was) an Aussie :)

[alexanderhulse]

lol nice diffracting

[gonger03]

1 guy didn't understand the video :P

[MidnightRedemption]

planck's contant is "unimaginably small" ?

what is reduced planck's constant?

planck's contant all over 2 pi?

:D

[gasgas270]

Joe Calzaghe...is a scientist??????

[tiger55331]

He has cool glasses...

[Gonko100]

really lovely channel, i like!

[grzesnikowski]

"...and bits of me would go in different directions."

[longdragon3]

thanks sixtysymbols for posting up all these amazing videos.

[GrandeMestre]

Add subtitles, please!!! It would help a lot of non-english people. Tks!

[d21gtr]

I'd like to know why someone disliked this video. I think if you want to dislike a video you should have to say why.

[higuy1213]

GASP, WEIGHT IS A FORCE NOT A MASS :D

[MrRopedragon]

Lol the godfarther of quantam mechanics "I'm gonna make you a equation you can refuse"

XD

[rovusss]

heich and tree LOL

[bushbar123]

Godfather of quantum mechanics... HMMMM

[ruaridh66]

@bushbar123 is that not al?

[sasarLIM]

my favourite

[masterdude489]

He looks kinda like Gordon Freeman...

[sabaths1fan]

he says he can edit it out, but he doesn't. classic.

[ninjamaritz]

Aaw, you told him you were gonna edit that bit out, you left him looking like a gimp ;) Nice vid, first I've seen of these.

[Naddig74]

So are receiving diodes to be forever called 'Ned Kellys' ?

[heyandy889]

Love the Mr. Tompkins reference :D

[traditionsHome]

hilfzahl, i like it. still we are no closer to understanding the nature of matter or energy. it is only the proportionality of energy to matter that can be determined.

A question - can matter exist that has no action, no motion, no energy? Energy, it would seem, is matter in motion, but can matter exist without action?

[agbz]

T-Mobile commercial? Really?

[alrexrod198]

4:07

By the photoelectric effect?

[12thcenturyfox]

Very good Video I have to say!

By the way, "h" comes from the german word "Hilfszahl" meaning "helping number" because that's what Planck labeled this number in one of his early papers (as my quantummechanics Prof told us in one of his lectures).

[sasarLIM]

@12thcenturyfox that's cool

[ryanmov]

all stab your wife in the bath

[robertwc82]

"you can just edit this afterwards? as he fumbles clumsily..." lol, scientists.

so intelligent yet still just feeble minded humans haha

[carlsontechnology]

In order to find Planks constant using mercury, are you taking the initial equation (p=h/lambda) and solving for h (h=p*lambda)?

If so, how is the momentum measured and is the frequency a measurement of the color detected by the photo diode?

[rithem412]

@carlsontechnology-They are using E=h*nu

The photon hits the metal and is annihilated. The energy it possesses goes into 2 places.

The metal in the photo diode has a "work function" equal to its first ionization energy. This is the minimum amount of energy required to eject an electron.

The leftover energy is given as kinetic energy to the ejected electron. By determining the energy of the ejected electron plus the work function, you get the energy of the photon. Divide by nu to get h.

[ofreika]

@carlsontechnology

forgive me if I: misunderstood or got it wrong,

I don't know if they found it with that equation.

but yes every colour has his own frequency and wavelength(you can easily find the one from the other(f = c/lambda with c=speed of light) so they can measure the wavelength of the colour. sorry if it wasn't any help

[realisoph]

I like the parts about the experiment though... I don't mean to come off as being anti-science or some such.

But, how about not overly stressing the notions of discrete quanta and constants, but instead telling the truth about their variable and relaive (!) nature?

You ever so conveniently seem to skip the part when it comes to variance, perspective and significance! As if it were meaningless, yet that is not so at all.

[realisoph]

This comment doesn't deserve the bad rating. To me that testifies for your unwilligness and ignorance to consider what is rightfully to be considered.

[realisoph]

How about you try to write that number of how much you would have to pay back if you had been given 1 cent 2000 years ago at a reasonable interest rate of - say - 5%?

That would at least be telling you something about the (stupidities of today's) world ...far more significant to our everyday lives than one more of these 'constants' which never were such to begin with.

You try to advocate science, wheras all you seem to say is "It's to do with the fact that..."

...bummer!

[LunaticBob99]

Just because you're too stupid to understand something doesn't mean it was "never such to begin with."

...bummer!

[realisoph]

Since you think I'm stupid and seem to put it as if you understand these things better, maybe you try and explain to us what constants are or what they're not.

If you did, I would appreciate if you'd not mingle definitions with perceptions... such as pi and planck. Also, it'd be nice if you'd try to consider the significance and truthfulness of whatever you're trying to say, instead of merely repeating the bits and pieces of someone elses reasoning framework.

[roendm]

i still love it^^,

[libknocker]

when i first started listening to rush i hated him . but honestly he is misrepresentd in the liberal media . he is a brilliant political analyst. and a satarist making jokes about whatever is happening in news black white whateverhis best friend and producer is bo snerdly black conservative. you asked what happened to our brothers and sisters the democratic party thats what listen to rushs comments again and pretend for one sec. he says it with love!

[Schmoikel]

sixtysymbols,

@ 0:48, on the bookshelf over the speaker's right shoulder. Is that the notorious 'Atlas of Creation' by Harun Yahya?

[CathySander]

Yep! There was another video on it somewhere on the Sixty Symbols youtube channel.

[rogerdotlee]

@Schmoikel The best way to know thy enemy is to read his documentation. This is why I've always had problems with censorship of unpopular books. Mein Kampf being a huge example (banned in many countries, Holland and Germany for two, I believe). I've read it, and perhaps in the luxurious glow of hindsight it shows some extraordinary clues that could have been used against him rather easily. Limiting your reading to things you agree with is a good way of limiting yourself.

[A3roboy]

Um, can anyone tell me what he says (and what he is asked) at around 2:20 ? The question goes "Do you *blank* Planck?", and I can't understand the word I replaced with *blank*, and it's driving me nuts.

[Moriarty2112]

@A3roboy: Brady, the film-maker, asks me: "Do you rate him?". My response is: "Oh, yes. I don't think there's a physicist alive, dead, or to come who wouldn't rate Planck".

Sorry that this drove you nuts! Hope this clarification helps.

[wheetman]

I believe he said "read" irish accent and all

[blades392]

using context clues i think he said revere or respect or something to that order.

[sacntity]

the word is rate, asin ," Do you rate Planck

[briealeida]

I thought he said 'read'.

[SpacedTime]

He is asked "Do you rate Planck?" as in, I rate The Beatles as a great band, he, and all physicists rate Planck as one of the great ones.

[robertwc82]

it was either rate or rape. it sounds more like rape

[l359x2b]

Great Gagoo!! This was one of my first Holobubble History Meter Chips from my Childhood on Alcor. Thank you Earth 2009!!

[starkshift]

I was disappointed in this video. :(

Planck's constant does NOT (directly)dictate the spacing of the eigenenergies associated with atomic decay. This has entirely to do with the quantum electrodynmic composition of that atom.

The best description of Planck's constant can be framed in the context of Planck's own work. Planck was the first person to recognize the photonic charcter of light, and h is the ratio between the frequency and energy of a single photon.

[qsucvatz]

Einstein used Planck's quantization to solve the work function problem, and describe photon energies themselves as quantized.

Planck used the constant to describe the quantization of vibrations in the walls of the black box, without any care to the photons. This solved the ultraviolet catastrophe.

Thanks for posting for all the youtubers too :)

[GeekyInferno]

This was mint.

[eosgreg]

Idea on why planck's constant is h, he was working at The Humboldt University, Berlin when you discovered it, maybe the h is from "Humboldt"?

By the way great videos keep them coming.

[cjpendleton1993]

Great video once again, som many to get through!

[Ultim8Aggie]

Please tell me why everyone writes with a large black felt marker. Not a pen, pencil but a large black marker. I don't understand.

[sixtysymbols]

Because I ask them to (because it shows up more easily on camera)

By the way, all the scribbles they do on and off camera are all kept and put on our Flickr account at sixtysymbols

Check them out!

[Acid113377]

so you can see it on camera dumbass ^^

[SaraCufer]

lol

[brelinsisi]

i just finished learning this

[allupinyourgrillxxx]

thurty tree

[BassmasterBling]

you lost me at 66.3

[LaughinWarheads]

isn't this the same as avagadro's number? or is that something different?

[mrspudmuffin]

6.02 * 10^23

[RyuuKagutsuchi]

avagadro's number is the amount of atoms in 1 mol of any given matter.

[Bottledcan]

The university of minnesota professor who wrote the book on super hero physics said that Dr. Manhattan from Watchmen did what he did by being able to will the manipulation of his wave characteristics. How's that for a brain tickler?

[Envergure]

Being a wave sounds very inconvenient.

After you finish all the synbols, you should make videos about all the famous physicists, since you mention them so much.

[deathcrunch]

That last story really runs home why I hate physics.

If this theory was true bla bla bla. Well it's couldn't be, so why bother?

[Cyrathil]

Imagination, making sure you truly have the concept down as to what is going on, critically thinking about how this one aspect effects others. There's lots of reasons, besides the fact that it's just fun to imagine "What if. . .?". Surprisingly, even scientists are fun-loving people, and not serious 24/7.

[deathcrunch]

Yet they still come up with shit like string theory and try to force it like they were serious. :S

I can understand theory's and guess's but there's taking it to far ala LHC.

[Cyrathil]

Welcome to the world of theoretical physics. If they didn't try to imagine, we wouldn't have anything. Looking at quantum mechanics, I'm willing to believe that any theory, no matter how crazy it seems as long as its backed with evidence is valid. String theory isn't backed with evidence now but who knows in the future. And how exactly is the LHC taking anything too far? They believe there is more to the smallest particles we know of now, and are looking for them.

[deathcrunch]

I'll agree with you on everything except the last two lines.

Spending a fuck-ton of money building something to prove a single (and to my knowledge useless, though I could be wrong.) piece of info. Say they didn't fuck up at least twice and totally break the thing, what applications would it have had?

[Cyrathil]

The furthering of knowledge is never a waste, as long as something is learned. We're not just building another particle accelerator. It's a stronger one, it will allow us to, hopefully, view things which we haven't been able to so far. There's the finding(hopefully) of the higgs boson, or at the least getting closer to it, the graviton( if it actually exists, and if it doesn't, maybe we'll find some fuller explanation of how gravity does work), and that's just the physics applications I know of.

[Cyrathil]

There's other things as well. Because the CERN is trying to do these experiments as efficiently as possible, engineers will be forced to try and think of how to scale it down without losing power, which could benefit us. Because this thing drains so much power( it's part of the reason for the prolonged downtime this time), people in the areas around CERN will probably be trying to figure out how to get more power, or use the power they have better. Knowledge is still the biggest for me though.

[psycogeek]

What Deathcrunch said, , by the time scientists and even creationists, get done arguing about what is real in space and time, they wasted enough time to have already trangress the space :-)

[leporidus]

The gedanken experiment at the end was honestly trippy! Woah, dude...

[pin3appel]

nice

[cookiecamp]

"you can just edit this can't you?"

"yeah" lol

[drumbum99]

anyone who is not shocked by quantum theory has not understood it

-Niels Bohr

=) loving these videos!

[hayeder]

if you think you understand quantum theory, you don't understand quantum theory

- Richard Feynman

I am also loving these videos, I have a deep passion for theoretical physics

[starecky23]

nice vid!

i'v always found physics to be the most interesting science, I'v been enjoying these videos even more then the periodic channel's vids :)

well done

[5dArK5sOuL5]

This was very interesting :)! I love to learn something new!

[safibn1]

so then you could be ina ll sorts of places at once!

Physics, in my opinion, is not as interesting as chemistry or biology, but it is still cool, and I thank you for taking the time to show people what things are all about.

~Safibn

[DeoMachina]

Interesting but I think quantum went above my head.

[HLSDK]

First View! Also: To the editor, last effect was pretty nice but I noticed some sort of interlacing artifact when the segment in the lab with the mercury lamp was being shown. It gets pretty disorientating when the camera pans quickly.