| Topic: |
Science > Physics |
| User: |
"Jerry" |
| Date: |
19 Feb 2006 05:09:11 PM |
| Object: |
RE: The mass of a photon |
The mass of a photon increases as the speed of the photon decreases. Thus
Mp = Mo [ 1- (V/C)^2] ^(0.5)
When the photon enters an electron or proton (in some cases) the speed is basically
zero and the mass equals the rest mass. As the photon slows in glass or diamond,
it has appreciable mass. It also has mass in the perpendicular direction to motion
therefore it is attracted by the stars. Thus the mass of a photon depends upon the
axis chosen to measure the mass.
for more ask Jerry at http://groups.msn.com/scienceofGod
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| User: "Sam Wormley" |
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| Title: Re: The mass of a photon |
19 Feb 2006 05:37:06 PM |
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Jerry wrote:
The mass of a photon increases as the speed of the photon decreases. Thus
Mp = Mo [ 1- (V/C)^2] ^(0.5)
Well sorry to break this to your, bout the speed of a photon is
always the speed of light, c. Photons have zero mass, but nonzero
momentum given by equation (1) thru (4) in the following URL.
See: http://scienceworld.wolfram.com/physics/Photon.html
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| User: "Y.Porat" |
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| Title: Re: The mass of a photon |
20 Feb 2006 05:17:53 AM |
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Hi Parrot !!
momentum without mass Ehh?? idiot.
Y.Porat
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| User: "Doune" |
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| Title: Re: The mass of a photon |
20 Feb 2006 05:27:31 AM |
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Y.Porat wrote:
momentum without mass Ehh?? idiot.
I think a more interesting question is: if the path of a photon is
affected by a mass, is there any effect (velocity, momentum et al) on
the mass?
SCW
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| User: "Doune" |
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| Title: Re: The mass of a photon |
20 Feb 2006 04:54:46 AM |
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Sam Wormley wrote:
See: http://scienceworld.wolfram.com/physics/Photon.html
Here's a clip of text from this link "Photons have zero *mass*, but
nonzero *momentum* given by..."
The *'s here represent hyper-links, with the *momentum* link going to a
page which then starts "For a single particle of mass m with velocity
v, the momentum is defined as..."
You can't blame the guy for getting confused! It may have been more
appropriate to explain what nonzero means...
Best regards
SCW
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