| Topic: |
Science > Physics |
| User: |
"Muser" |
| Date: |
01 Aug 2006 04:26:40 AM |
| Object: |
Did that relativistic mass cause gravitation? |
I know a bit of the difference between the rest mass and the
relativistic mass, but I am always wonder if the relativistic mass will
cause gravitation just as the rest mass did ?
And I am curious about what cause gravitation actually, I have heared
about the photon haven't the rest mass but still can cause
gravitation.It is make me so wonder.
Any help from you will be great appreciate!
PS:This problem have drive me crazy about 2 months~!
Regard,
Andy.
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| User: "Muser" |
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| Title: Re: Did that relativistic mass cause gravitation? |
01 Aug 2006 10:01:05 AM |
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Thanks for Sir Nurban's great help via E-mail:
In article of sci.physics, you wrote:
I know a bit of the difference between the rest mass and the
relativistic mass, but I am always wonder if the relativistic mass will
cause gravitation just as the rest mass did ?
Yes, relativistic mass gravitates. More generally, the source of
gravity is the stress-energy tensor, of which the relativistic
mass-energy density is one component.
And I am curious about what cause gravitation actually, I have heared
about the photon haven't the rest mass but still can cause
gravitation.It is make me so wonder.
Photons have no ("rest") mass, but they do have energy, so they
gravitate.
.
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| User: "Sorcerer" |
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| Title: Re: Did that relativistic mass cause gravitation? |
01 Aug 2006 02:18:00 PM |
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"Muser" <155034714@qq.com> wrote in message
news:1154444465.419500.176200@i3g2000cwc.googlegroups.com...
| Thanks for Sir Nurban's great help via E-mail:
|
|
| In article of sci.physics, you wrote:
| > I know a bit of the difference between the rest mass and the
| > relativistic mass, but I am always wonder if the relativistic mass will
| > cause gravitation just as the rest mass did ?
|
| Yes, relativistic mass gravitates. More generally, the source of
| gravity is the stress-energy tensor, of which the relativistic
| mass-energy density is one component.
|
| > And I am curious about what cause gravitation actually, I have heared
| > about the photon haven't the rest mass but still can cause
| > gravitation.It is make me so wonder.
|
| Photons have no ("rest") mass, but they do have energy, so they
| gravitate.
http://www.fourmilab.ch/etexts/einstein/specrel/www/figures/img155.gif
http://www.androcles01.pwp.blueyonder.co.uk/Rocket/eq22.A.GIF
The guy was an idiot that didn't know what a half was.
Androcles.
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