Question, age of nuclear mass, there degrade over time , so a nuclear weapon will degrade in time ? As mass is loss would this degrade of power ?
@davidrandell22242 сағат бұрын
QM classicalized in 2010. Forgotten Physics website uncovers the hidden variables and constants and the bad math of Wien, Schrodinger, Heisenberg, Einstein, Debroglie,Planck,BOHR,etc. So,no.
@gato-junino3 сағат бұрын
One question: Why does the calculations use mv²/2 for the electron speed? Doesn't this equation suitable for bigger objects?
@carly09et3 сағат бұрын
This gives rise to the question of orthogonal deconstruction across the 3sub1 X M. Is space and time rationally irreducible?
@ratman42003 сағат бұрын
Another banger, thanks Dr :3
@DavidMFChapman3 сағат бұрын
Thank you for this. It must have been an exciting time to be a physicist.
@sphakamisozondi3 сағат бұрын
This channel deserves more subs and viewer count
@no-one_no14064 сағат бұрын
The argument against the Rutherford model of the electron having a acceleration is laughable at best. If you have a particle remain at the same distance to the other particle whose existence cause the force, how can that "count" as a acceleration. No change is distance is clearly not a acceleration. Specific energy levels does require some more refinement though!
@DavidMFChapman3 сағат бұрын
This is basic physics: uniform circular motion requires continuous acceleration towards the centre. Otherwise the particle would travel away in a straight line.
@no-one_no1406Сағат бұрын
@@DavidMFChapman That is the classical explanation yes. That I don't agree with at all. It's simply a matter of perspective. Very much similar to rotating a ball attached to a string. It remains at the same distance to you. Yes there is a force involved. But is there really a "meaningful" acceleration? The kinetic energy doesn't change. The change in position over time -> 0. Seems to me like you could equally see this as a internal state of the system not affected by anything outside the system. A way to store kinetic energy maybe. Electron philosophy if I may.
@no-one_no1406Сағат бұрын
My view is that uniform circular motion can be seen as the same thing as traveling in a straight line. In certain cases.
@DavidMFChapman34 минут бұрын
@@no-one_no1406An object in a circular orbit is moving in two dimensions. Yes, the speed is constant, but the velocity vector is continually rotating-that changing velocity is the acceleration.
I'm not sure I like calling bohrs model quantum. To me it's an intermediate step between classical models and the schrödinger model. Neither quantum nor classical. Some really important aspects of quantum theories are missing still. Maybe "the first model of a quantized atom", similar to how einsteins description of the photoelectric effect didn't give us a quantum theory of light, but rather a theory of quantized light. Btw my quantum theory prof told this story fairly similarly, but derived the quantised levels by treating the electron as a wave with wavelength obeying einsteins relation. Given that de boglie won't publish for another decade, I find that kind of hard to believe. Do you know if that has an ounce of truth in it, or was he just mixing up history a bit?
@DavidMFChapman3 сағат бұрын
The model is not fully developed quantum mechanics, but it is a quantum model owing to the discrete values of physical quantities, as opposed to continuous values.
@berdigylychrejepbayev75034 сағат бұрын
tbh your videos are great and very detailed in every aspect (historical, biographical, formulas and graphs/models) but I hate to say that your view and subscription number might not be as high as you deserve, for some time. so dont be upset about it.
@berdigylychrejepbayev75034 сағат бұрын
so bohr got lucky just by applying the popular trend in other areas into his
@davidmitchell38815 сағат бұрын
Rutherford was less than impressed with the Nobel for chemistry. He thought of himself as a physicist not a chemist. Chemistry after all was just stamp collecting 😂
@berdigylychrejepbayev75034 сағат бұрын
just like other sciences (except physics ofc) :-)
@awkonradi5 сағат бұрын
Thank you for publishing this video.
@nicholasogden71875 сағат бұрын
I look forward to every one of your videos :)
@jkzero5 сағат бұрын
thanks for that, it means a lot when viewers appreciate the effort and find the content of value
@user-nz8hp6if2m6 сағат бұрын
How about a detailed video on Larmor's formula? I have always wondered how the emission process of accelerated electrons can be described mathematically starting from Maxwell's equations.
@jkzero5 сағат бұрын
I cannot guarantee to be able to fulfill all the requests but I always open to collecting suggestions, thanks.
@chalkchalkson56394 сағат бұрын
So the standard calculation from SR Maxwell's laws is very cumbersome since you need to be quite careful around the accelerated objects. You can do it reasonably well by doing it in Rindler coordinates using the GR versions, but that assumes you know some GR... There is a version of the special relativistic derviation of it on wikipedia, see en.wikipedia.org/wiki/Li%C3%A9nard%E2%80%93Wiechert_potential From A (or E and B) you can find the pointing vector and thus the emitted radiation. Beware the derivation is long and a little ugly
@Skellborn6 сағат бұрын
Haha, i just wondered today when the next video is coming! Love it :)
@jkzero5 сағат бұрын
yeah, this came with a delay because sometimes life gets in the way
@Skellborn5 сағат бұрын
@@jkzero Oh this wasn't meant as a complaint in any way! Take your time, as you need it :)
@cewkins7216 сағат бұрын
Great video once again! The derivation of laws seems fairly simple yet very meaningful, the implications of electron orbits and how they behave was surely a very impactful discovery for the field
@jkzero5 сағат бұрын
this is one of the reason I really like this derivation, it is quite simple but very significant in the early days of quantum physics
@razercp93226 сағат бұрын
Awesome 👏
@alejandroromansanchez53686 сағат бұрын
Mi novela acaba de empezar
@jkzero5 сағат бұрын
espero que el episodio te haya gustado
@primenumberbuster4046 сағат бұрын
Oh, time to brush some basics of QM now! 🙂
@ItsVideos23 сағат бұрын
At 5:10 "In 900...". Do you mean 1900?
@jkzero20 сағат бұрын
yes, I do and thanks for pointing this out; I got too excited with the story and messed that up, in any case, I include dates and numbers in general on the screen to compensate for potential silly mistakes like this.
@johnbgibbs3 күн бұрын
Surely we were aware that induced voltages were proportional to rate of change of magnetic field, since 1831 (Faraday) ? It is entirely logical that the voltage in the photoelectric effect is a consequence of the frequency (colour) of light. What threw people off track is the nature of vision systems, which decode frequency as colour instead of voltage, and flux density as "intensity", which is naturally thought of as analogous to voltage, which is of course quite wrong. I cannot understand why the photoelectric effect should have baffled people familiar with basic Electromagnetic induction theory.
@josephcameron5304 күн бұрын
Great presentation. Thank you.
@jitenderkumaryadav65137 күн бұрын
I come back to you to ask a specific question. There has been a lot of hassle around whether Einstein deserves so much credit for the theory of relativity or was it poincare who did all the mathematics. Could you make some content or share some resources decoding the exact role of all physicists in relativity? And some good sources to study relativity would be great as well. Thanks!
@jitenderkumaryadav65137 күн бұрын
This is related to people questioning Einstein's credibility as a physicist or mathematician.
@enriquemacchiavelli87718 күн бұрын
Thanks for this and the complete series of physics story. BEAUTIFUL!
@ZhanMorli8 күн бұрын
Zhavlan Ovchinnikov. Kazakhstan. Almaty. SAPAR. Hello. With the help of the “HYBRID gyroscope” you can make scientific discoveries; in astronomy, astrophysics, cosmology, higher theoretical physics,... I am writing to you with a proposal for the joint invention of a HYBRID gyroscope from non-circular, TWO coils with a new type of optical fiber with a “hollow core photonic-substituted vacuum zone or (NANF)” where - the light travels 48000 meters in each arm, while it does not exceed the parameters 40/40/40 cm, and the weight is 4 kg. Manufacturers of “Fiber Optic Gyroscopes” can produce HYBRID gyroscopes for educational and practical use in schools and higher education institutions. Einstein dreamed of measuring the speed of a train, an airplane - through the Michelson-Morley experiment of 1881/2024, and only then would the experiment be more than 70% complete. This can be done using a fiber optic HYBRID gyroscope. Based on the completion of more than 70% of Michelson's experiment, the following postulates can be proven: Light is an ordered vibration of gravitational quanta, and dominant gravitational fields adjust the speed of light in a vacuum. (We are not looking for ether, we will see the work of gravitational quanta) The result is a «theory of everything» in a simple teaching device and a new tape measure for measuring the universe.
@ZhanMorli8 күн бұрын
Здравствуй With the help of the “HYBRID gyroscope” you can make scientific discoveries; in astronomy, astrophysics, cosmology, higher theoretical physics,... I am writing to you with a proposal for the joint invention of a HYBRID gyroscope from non-circular, TWO coils with a new type of optical fiber with a “hollow core photonic-substituted vacuum zone or (NANF)” where - the light travels 48000 meters in each arm, while it does not exceed the parameters 40/40/40 cm, and the weight is 4 kg. Manufacturers of “Fiber Optic Gyroscopes” can produce HYBRID gyroscopes for educational and practical use in schools and higher education institutions. Einstein dreamed of measuring the speed of a train, an airplane - through the Michelson-Morley experiment of 1881/2024, and only then would the experiment be more than 70% complete. This can be done using a fiber optic HYBRID gyroscope. Based on the completion of more than 70% of Michelson's experiment, the following postulates can be proven: Light is an ordered vibration of gravitational quanta, and dominant gravitational fields adjust the speed of light in a vacuum. (We are not looking for ether, we will see the work of gravitational quanta) The result is a «theory of everything» in a simple teaching device and a new tape measure for measuring the universe.
@johncourtneidge8 күн бұрын
Heroic, beautiful, marvellous. This very well illustrates my own experience of research: a process that this 'Age of Stupidity' has (hopefully, temporarily!) murdered. The Pheonix of scholarship and advance will return! It will!
@santanusaikia884810 күн бұрын
The length of the circular segment is less than the side of the triangle . Therefore, the visual where the piece rolling inside the triangle is not possible.
@jkzero10 күн бұрын
could you specify what you are referring to?
@zonahfalak426113 күн бұрын
My world came crashing down on me.....did he just call Kirchoff "Kirhoff"?!
@jkzero13 күн бұрын
I take all the responsibility... I will try to do it better next time
@brandonheaton619714 күн бұрын
The sponsor is questionable but the science content of this video is solid gold from start to finish. Will 100% use in class
@Jtnimagery17 күн бұрын
Love the video! Small nitpick - At 14:23 the next step of the equation is not simply squaring and rearranging, the law of cosines is applied to introduce theta.
@jkzero16 күн бұрын
Thanks for watching and I am glad you liked the video. I disagree with the need of the law of cosines in this step, it is an alternative way of doing it but I didn't use it. Let me show the steps I followed without the law of cosines: p = k - k' (square both sides now) |p|² = |k|² + |k'|² - 2 k·k' by definition k·k' = |k| |k'| cos θ |p|² = |k|² + |k'|² - 2 |k| |k'| cos θ so no need of the law of cosines.
@johnaugsburger619218 күн бұрын
Thanks
@johnbarbuto538718 күн бұрын
In my opinion this offers a type of insight rarely discussed: the mental path of genius. So often we celebrate contributors for their outcomes (such as Planck and the others discussed herein), but we don't really understand the mental processes they had to go through for those outcomes. Here, by contrast, the mental journey of Planck - and the circumstances upon which it depended - are explored. Further, this video dramatically emphasizes the difference between a scientist versus those who prefer emotional preference over analysis. The fantastic electronic tools of this era (and all of their derived experiential opportunities) do not owe their development to religion or the comforts of emotional preference. If we were relegated to reliance on what they say we would still be living in the era of push-carts and plows. Instead, in this era we have the opportunity to celebrate those humans willing to grapple with objective analysis, such as all of the minds discussed in this video. It is from their minds, and penchant for discovering how the world really works, that we now live in an era where wonderful people across the planet, such as Dr. Diaz, may offer their insights in order to teach us how genius makes it contributions.
@jkzero18 күн бұрын
Thank you so much for your kind words, I am glad that you found the video so valuable. I am totally with you; when I was a physics student I learned the solutions to the problems of the time but I remember that the lack of context and details was quite unsatisfactory. I find most accounts of these stories to focus on the final result but I find the problems, the struggles, and the wild guesses fascinating, so I decided to share them here. Glad to find so many people moved by these stories and that don't shy away from some taste of the math behind. This video was just the kick-off of this video series so make sure to check the rest in this playlist: kzbin.info/aero/PL_UV-wQj1lvVxch-RPQIUOHX88eeNGzVH
@jmmahony19 күн бұрын
Thanks for the discussion of the compression of the pit. When I first heard of the implosion method, I assumed they were compressing a hollow sphere into a smaller sphere with thicker walls, ie, closer to a solid sphere. When I heard the pit was solid, I was surprised because I had assumed the bulk modulus of a solid (or even liquid) material was too high for even high explosives to compress it much. Sure, explosives can mangle metal, but normally the explosive is on only one side of the metal, so there's a high pressure and low pressure side of the metal, and it bends towards the low pressure side.
@jmmahony19 күн бұрын
Applying physics to real world problems almost always involves some approximations and some "simplifying assumptions" (ie, "assume the cow is spherical"). I think your assumption that the horizontal speed of the falling bomb is the same as the plane's speed will not be very accurate. The bomb has no propulsion to overcame air resistance, so I think it would slow down considerably during the time it is falling. That could explain why your answer of 154 degrees is somewhat different from what the pilot claims Oppenheimer said was optimal, 159 degrees.
@jmmahony19 күн бұрын
Warning: typo in laplacian of f at 10:10.
@jkzero19 күн бұрын
You are totally right, I messed up the r² term. Thanks so much for pointing this out, it is a good catch. Fortunately, it doesn't affect the calculation because it is correctly applied, this is just a typo on the video but not an error in the calculation. Others have also notified it and I have included an erratum in the video description. I do my best to avoid these typos but after watching everything many times some minor details slip through. Thanks again
@JustNow4220 күн бұрын
Niels Bohr did what? He did not do anything before 1913.
@jkzero20 күн бұрын
Most of the story in this video takes place in the early 1920s, I included the dates everywhere
@davidrandell222420 күн бұрын
QM classicalized in 2010. Forgotten Physics website uncovers the hidden variables and constants and the bad math of Wien, Schrodinger, Heisenberg, Einstein, Debroglie,Planck, Bohr etc. Further: light is a cluster of expanding electrons; particles, objects,matter with ‘mass.’ “The Final Theory: Rethinking Our Scientific Legacy “, Mark McCutcheon for proper physics including the CAUSE of gravity, electricity, magnetism, light and well.... everything.
@GRosa15 күн бұрын
😂
@CaptainCalculus20 күн бұрын
Fantastic as always, have a coffee and a bagel on me
@jkzero19 күн бұрын
Once again, thanks for your continuous support. That coffee and bagel make the perfect company while I finish the next video... it will be "bohring"
@CaptainCalculus19 күн бұрын
@@jkzero oh I'm on pins and niels waiting for it!!!
@jorgeluis438921 күн бұрын
Awesome channel. Vaguely remember my high school physics classes but these videos makes it fun.
@jkzero20 күн бұрын
Thanks for watching, glad you enjoy the content. Make sure to check the rest of the ongoing series on quantum physics, this video was just the kick off.
@GRosa22 күн бұрын
What was the purpose of the crystal in front of the ionisation chamber? Was it to select individual wavelengths from among the secondary X-ray continuum (if it's one)?
@jkzero20 күн бұрын
the crystal was the key component of the Bragg spectrometer, X rays reflected on the crystal surface and by changing the incidence angle you can select the wavelength reflected in a given direction (this is call Bragg's law). This was most of Compton's PhD thesis so he knew this would give him an edge compared to all previous experiments. This is Bragg-spectroscopy technique is what allow Compton to scan a wide range of wavelengths.
@GRosa20 күн бұрын
That's what I thought. Gracias
@MathsSciencePhilosophy22 күн бұрын
I have a theory about light (but I am not sure whether it's correct or incorrect).
@GRosa21 күн бұрын
That shouldn't be very hard to evaluate. If your theory doesn't explain the already known phenomena then it's most likely incorrect.
@jkzero20 күн бұрын
If you have a theory, all you have to do is to express it in clear mathematical form, derive its consequences, and confirm that its predictions agree with existing experimental evidence.
@MathsSciencePhilosophy7 күн бұрын
@@jkzero my theory's mathematics is same as well established theories which are already derived and tested, but I have another interpretation of that mathematics
@tombouie23 күн бұрын
Naive questions; So light is quantumtized but ????Iwhat is the empiric proof light is an atomic particle??? For ex: atomic particles might be well-described as frozen/condensed light or something
@GRosa22 күн бұрын
Light quanta, i.e. photons, aren't atomic particles.