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Science Forum Index » Physics Forum » Percentage of the universe taken up by matter...
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| Anon Email... |
 Posted: Fri Jun 13, 2008 5:30 pm |
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I'm curious to know what percentage of the universe is matter. I bet
it's extremely small. No doubt some physicists out there have
calculated the percentage. Anyone know?
Cheers,
Anon. |
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| Androcles... |
| Posted: Fri Jun 13, 2008 11:05 pm |
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"Anon Email" <anonemail1 at (no spam) fastmail.fm> wrote in message
news:6a540e53-1b3b-4376-805a-2955c01504d1 at (no spam) a9g2000prl.googlegroups.com...
| I'm curious to know what percentage of the universe is matter.
100% of my apple is apple, the other half is nothing.
--
Androcles
Why did Einstein say
the speed of light from A to B is c-v,
the speed of light from B to A is c+v,
the "time" each way is the same?
1/2[tau(A)+tau(A')]= tau(B)
where
A = (0,0,0,t)
A' =(0,0,0,t+x'/(c-v) +x'/(c+v))
B = (x',0,0,t+x'/(c-v))
x' = x-vt
Ref: http://www.fourmilab.ch/etexts/einstein/specrel/www/figures/img22.gif
"Easy: he did NOT say that." - cretin harald.vanlintelButNotThis at (no spam) epfl.ch
According to moron van lintel, Einstein did not write the equation he wrote. |
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| Posted: Sun Jun 15, 2008 7:07 pm |
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On Jun 13, 7:30 pm, Anon Email <anonema... at (no spam) fastmail.fm> wrote:
Quote: I'm curious to know what percentage of the universe is matter. I bet
it's extremely small. No doubt some physicists out there have
calculated the percentage. Anyone know?
Cheers,
Anon.
The universe is mostly Dark Matter. It had a comon origin with matter
at the Bing Bang. The Earth Sun and stars are made primarily of it.
Mitch Raemsch |
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| Spaceman... |
| Posted: Mon Jun 16, 2008 12:00 am |
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Anon Email wrote:
Quote: What's mind-boggling?
That 50% is matter and the other 50% bullshit. And I can't even smell
it! (Kidding.)
LOL
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James M Driscoll Jr
Spaceman |
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