Re: Why can't a photon be absorbed by a stationary electron?
redbelly98_at_yahoo.com
Date: 01/29/05
- Next message: Greg Hennessy: "Re: Roberts versus Lazio on "Overaveraging""
- Previous message: Tom Capizzi: "Re: What is this "internal clock" in muon which slows down its rate of decay when they move very fast?"
- In reply to: RP: "Re: Why can't a photon be absorbed by a stationary electron?"
- Next in thread: RP: "Re: Why can't a photon be absorbed by a stationary electron?"
- Reply: RP: "Re: Why can't a photon be absorbed by a stationary electron?"
- Messages sorted by: [ date ] [ thread ]
Date: 29 Jan 2005 10:15:55 -0800
RP wrote:
> OTOH, by similar argument: Given a
> partial absorption of energy of the photon, for every positive change
> in KE of an electron in K there exists a frame K' in which the change
> in KE is negative. Thus by an extension of your argument photons
don't
> exist, since they will violate energy conservation under any
> circumstance.
No. The change in KE can be negative for the electron if the
photon energy increases, thus still conserving total energy.
Look up Compton scattering -- collisions between individual
photons and electrons have been known about and measured
experimentally since the early 1900's. The observations
are explained by simple conservation of momentum and energy
arguments.
http://hyperphysics.phy-astr.gsu.edu/hbase/quantum/comptint.html
Mark
- Next message: Greg Hennessy: "Re: Roberts versus Lazio on "Overaveraging""
- Previous message: Tom Capizzi: "Re: What is this "internal clock" in muon which slows down its rate of decay when they move very fast?"
- In reply to: RP: "Re: Why can't a photon be absorbed by a stationary electron?"
- Next in thread: RP: "Re: Why can't a photon be absorbed by a stationary electron?"
- Reply: RP: "Re: Why can't a photon be absorbed by a stationary electron?"
- Messages sorted by: [ date ] [ thread ]
Relevant Pages
|
