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Confining the light causes it to have more colours. This is explained well in an excellent video by Ben Miles. But at first glance, the experiment seems to be a totally different one than what I explained in the video- so I'll explain what the connection is. In particular, it's only the "single slit" version of the experiment that's relevant for us. I said that the researchers confined a laser to a small space. The technique they used to do this was to have two lasers- one which is the source, and the other which is used to turn on and off a "switch" of sorts. What the switch does is it makes the material in the experiment go from transparent to reflective very quickly, then back. The source laser is shining continuously at the material.But the idea is that for the short while that the material is reflective a little section of the laser beam is reflected. That's the "confined" light- they took a laser beam that's always on and constant and isolated a small section, confining the whereabouts of the light. They then measured the colours of that light and find it's spread out. (This result is at the 8 minute mark)
Clearly written by someone with no understanding of physics.
Let's analyze the most simple case, and see if our models can make sense of it. An electron is made to oscillate at frequency of 1 Hz. The amplitude is 1 meter. How many photons is it radiating every second in average? What if the amplitude is then reduced to 1 mm? Is there a minimum amplitude? Is there a maximum amplitude?
It's often said that light is an electromagnetic wave, a disturbance in electric and magnetic fields, but what does that mean? How are they made? Let's take a deeper look at electrodynamics and this history behind the discovery to see if we can find an answer.
Is there a maximum amplitude?
Quote from: hamdani yusuf on 16/02/2024 21:47:59Is there a maximum amplitude?Obviously.
Quote from: hamdani yusuf on 16/02/2024 21:47:59Let's analyze the most simple case, and see if our models can make sense of it. An electron is made to oscillate at frequency of 1 Hz. The amplitude is 1 meter. How many photons is it radiating every second in average? What if the amplitude is then reduced to 1 mm? Is there a minimum amplitude? Is there a maximum amplitude? IMO, the last question would be constrained by speed of light. But the answer to the other questions are less obvious.It seems like the currently most widely accepted model isn't adequate to give us the satisfactory answers.
You may be about to confuse Planck's "particle in a box" model with a Maxwellian "resonant aerial" model. Beware!
Which model do you think is best to describe my example?
Story of how Planck discovered the blackbody radiation formula and why he introduced energy quantization as a math trickErrata: 08:10 instead of Pringscheim should be Pringsheim, thanks to @petermarksteiner7754 for notifying this14:40 after the integration there is an extra minus sign that should not be there, thanks @escandestone6001 for notifying this20:22 second equation should be ε/(kT)=log(1+ε/U), thanks to @Galileosays for notifying this23:52 "gasses" should be "gases," thanks to @Robert-skibelo for notifying this
The cases are distinct and unrelated.
which is mostly dismissed in textbooks.