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Tarun's avatar

Great read!

It reminded me of a piece I had read in Richard Feymann’s autobiography.

When he returned from Los Alamos he joined Cornell ig, to do research and he didn't have any motivation in physics at all, so one day (better let me just quote his book here)

So I got this new attitude. Now that I am burned out and I'll never accomplish

anything, I've got this nice position at the university teaching classes which I rather

enjoy, and just like I read the Arabian Nights for pleasure, I'm going to play with physics, whenever I want to, without worrying about any importance whatsoever.

Within a week I was in the cafeteria and some guy, fooling around, throws a plate

in the air. As the plate went up in the air I saw it wobble, and I noticed the red medallion

of Cornell on the plate going around. It was pretty obvious to me that the medallion went

around faster than the wobbling.

I had nothing to do, so I start to figure out the motion of the rotating plate. I

discover that when the angle is very slight, the medallion rotates twice as fast as the

wobble rate ­­ two to one. It came out of a complicated equation! Then I thought, "Is

there some way I can see in a more fundamental way, by looking at the forces or the

dynamics, why it's two to one?"

I don't remember how I did it, but I ultimately worked out what the motion of the

mass particles is, and how all the accelerations balance to make it come out two to one.

I went on to work out equations of wobbles. Then I thought about how electron

orbits start to move in relativity. Then there's the Dirac Equation in electrodynamics. And

then quantum electrodynamics. And before I knew it (it was a very short time) I was "playing" ­­ working, really ­­ with the same old problem that I loved so much, that I had

stopped working on when I went to Los Alamos: my thesis­type problems; all those oldfashioned, wonderful things.

I still remember going to Hans Bethe and saying, "Hey, Hans! I noticed

something interesting. Here the plate goes around so, and the reason it's two to one is. . ." and I showed him the accelerations. He says .... ( read the book if you want to know what happened,

SPOILER ALERT - long story short he won the Nobel prize )

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Jessie Fischbein's avatar

This is a lot of fun and very interesting! Looking forward to future posts

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