The Experiment That Proved the Quantum Nature of the Atom
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- เผยแพร่เมื่อ 14 ต.ค. 2024
- The Franck-Hertz experiment, done in 1914, was a revolutionary moment in quantum physics history, as James Franck and Gustav Hertz experimentally proved that electrons transfer energy in discrete amounts. They did this by firing electrons in a de-pressurized chamber filled with vaporized mercury and firing electrons between electrodes with varying voltages.
Scientific micromentaries without fluff and filler like into sequences are awesome, keep it up dude!
Appreciate it! I'll keep em coming.
Another lovely video, you reveal the humanity behind these great achievements.
It's wonderful to cover this work.
The brilliance, innovation, and tenacity of these men is staggering. And the summary video is succinct and insightful. Thanks for the great explanation!
Great research and presentation. Having taken an undergraduate degree in physics many, many years ago, I sit thinking how nice it would have been to have the internet and videos like this. Nice job.
I appreciate that. I also did undergrad in physics, and that very thing inspired me to make these videos!
Thank you for explaining how an experiment was done.
Thanks for posting. Extraordinary what physicists achieved in the early 1900’s as quantum theory was being developed and tested…
I had no idea there was a 2nd Hertz, arguably making even greater contributions. Thank you!
Great video! This encourages me as I am doing my PhD research in engineering via experiments
Thank you, so glad I am encouraging you! Hope all goes well!
Fantastic presentation and explanation. Thanks
Replicating the Franck-Hertz Experiment was one of the experiments on the "menu" of my Senior Lab class. (As I remember, we had to pick 4 out of 10.)
Thanks for the wonderful narration of great scientific inspiring works.❤
Very well presented.
Very well explained. It would be interesting to see if anyone tried to replicate these early experiments but using modern instrumentation.
"Plunk"? In all of the texts from my college science classes, and all of the lectures, I always saw and heard his name pronounced and spelled as Plank. You learn something new everyday.
As a retired chef with entirely too much time on my hands I've started looking at Quantum Physics, and find it FASCINATING!
Fascinating, unpredictable, and nonsensical all at the same time 😂
@@RationalThinker118 Like quantum mechanics. "If you think you understand it...."
Thanks.
What kind of sources do you use for these videos?
I often try to find the original papers, but if I can't, I go to online encyclopedias or university pages.
thanks about Niels Bohr, thanks Hertz and Franck. I love the Munich and Berlin Physics. sorry the world stupider since 1950's
New great name: Frankenhertz
🤣 very clever
Another interesting story is the impact of the formula from Johann Jacob Balmer on Niels Bohr's atomic model. Balmer found it 1885 but it took until 1913 that someone (Bohr) could explain it's meaning.
Amazing. Marvelling at the consequences of your theory. 😃
great video mate!
The experiment, seen from another angle, seems to have developed the early vacuum lamp, which is the precursor to the Transistor. I don't know if they were the first to do it.
"Franck and Hertz". Say it too quickly and you hear, "Frankenhertz!!"
One good experiment is enough to refute one bad experiment and one bad theory.
How simple is brilliance !
just a hand made tube and a couple of electrodes.. no computers, calculators, .. but as simple as discovery of fire...
how stupidly simple must you be to be brilliant?!
Nice videos, I like'em!
Thanks for all your comments, I see them on almost every video 😂♥️
@@RationalThinker118 Thanks for your every video, i've seen ~almost~ all... But I can see that one like and comment is not enough unfortunately.
Even if it isn't enough, it's better than nothing. I always happily take them 😊 and thank you for watching all my videos!!
The diagram for this description of the experiment is all wrong. If teh emitted photon goes back away from the anode, the atom would have MORE energy in the direction of the anode NOT less, because of the recoil. It's the same mechanism as occurs with light sails.. The momentum in a photon is a vector quantity.
It's like a female creature without a male partner. It uses the cosmic energy to plit, and to divide into 2 parts. When the atom is enclosed by a diamond, a compressed matter is made, because it can't split. Hundreds of electrons gather around it from the air, causing a high radiation. When this single molecule is fired under a tank, the soldiers have to escape and run because its high radioactivity.
The philosophy behind science, which makes it distinct from religion, is that no experiment ever "proves" a theory. Science progresses when theories are disproved, and the theory has to be modified, the best example being Newton's laws of motion which had to be modified for relativistic effects at high speeds.
One of the solutions of the Demarcation problem is Popper's argument. That's how we differentiate between pseudoscience and Science.
@@primenumberbuster404 That's correct, a theory has to be falsifiable.
@@karhukivi"réfutable", pas falsifiable…En français, falsifier c’est tricher délibérément.
@@lapin3657 Un autre exemple de "faux ami" (= false cognate) - e.g. librairie is a bookshop and not a library which is a bibliotheque, location is rent, not a place, and journee is a day, not a trip to some place. Falsifiable is the word in English.
@@karhukivi Oui, parce qu’en français falsificateur, falsification à le sens de faussaire. Karl Popper avait lui même que le terme réfutable était plus approprié en français.
Quantum Kaleidoscopes bi 010 picosecond.
They should continue to question themselves, and more severely than they can. This is a magneto-dielectric universe. Relativity and Quantum physics have been falsified, however clutching to tenure under the effect of the Asch Conformity Test guarantees a slow death to the paradigm staining academia. Studies are pouring in on the electric/magnetic nature of the universe. Standard cosmology is collapsing at an accelerating rate. Have you looked into the structured atom model (SAM)? Have you listened to Eric P. Dollard discuss his work? peace out
So, you know nothing of physics and choose semi-randomised words that have no meaning. What a fun life you must have; making things up.
Okay my comment 🎉
Pro Tip: using the word quantum won't win you any points with the aliens. Trust me.
I think the experiment and the results can be interpreted differently, especially with that mesh being in there. The mesh will greatly influence the experiment. There is another explanation that doesn't involve bumping magical particles. I'm amazed at how the physics community has never evolved past those purely kinetic and mathematical interpretations. Very childish.
Max plunk? Misspelled and mispronounced!
Look up the pronunciation, you'll be surprised
A comment 😂
Quantum physics grew out of control with the construction of multi billion dollar colliders that haven't resulted in humanity's lives better for example like oil, refrigeration, air planes, and automobiles. And no, lasers are not the result of quantum physics.