Monday, April 29, 2024 Text is available under the CC BY-SA 3.0 licence.

James Jeans

« All quotes from this author
 

if a shower of electrons is shot on to a zinc sulfide screen, a number of flashes are produced - one for each electron - and we may picture the electrons as bullet-like projectiles hitting a target. But if the same shower is made to pass near a suspended magnet, this is found to be deflected as the electrons go by. The electrons may now be pictured as octopus-like structures with tentacles or 'tubes of force' sticking out from it in every direction.

 
James Jeans

» James Jeans - all quotes »



Tags: James Jeans Quotes, Authors starting by J


Similar quotes

 

Actually the situation is even more complicated, since a separate tentacle picture is needed for each speed of motion of the electron, the speed being measured relative to the suspended magnet or other object on which the moving electron is to act. ...When the electron is at rest, the tentacles stick out equally in all directions. But an electron which is at rest relative to one magnet may be in motion relative to another, and to discuss the action of the electron on this second magnet we must picture it as having a belt of tentacles round its waist. This shows that we must have a different picture for every speed of relative motion, so that the total number of pictures is infinite, and we cannot form the picture we need unless we know the speed of the electron relative to the object it is about to meet.

 
James Jeans
 

It would, however, be wrong to think of an electron as a bullet-like structure with tentacles sticking out from its surface. We can calculate the mass of the bullet, and also the mass of the tentacles. The two masses are found to be identical, each agreeing with the known mass of the electron. Thus we cannot take the electron to be bullet plus tentacles... The two pictures do not depict two different parts of the electron, but two different aspects of the electron. They are not additive but alternative; as one comes into play, the other must disappear.

 
James Jeans
 

When a photon comes down, it interacts with electrons throughout the glass, not just on the surface. The photon and electrons do some kind of dance, the net result of which is the same as if the photon hit only on the surface.

 
Richard Feynman
 

We saw that radiation cannot suitably be pictured as particles when it is traveling through space. There is a corresponding property for electrons; these should not be pictured as waves so long as they are traveling through empty space.

 
James Jeans
 

I was wondering what electrons are actually doing when they sit in your hard drive in an old laptop at the back of your closet. I mean, how does an electron sit still — is it like a cartoon M&M learning back in a folding beach chair? Is it like an angry little steel ball bearing hovering there, just waiting to go nuts on protons? What’s the mechanism that starts and stops the electron? Who’s its dungeon master?

 
Douglas Coupland
© 2009–2013Quotes Privacy Policy | Contact