[meteorite-list] Speed-of-light question

From: Mexicodoug <mexicodoug_at_meteoritecentral.com>
Date: Wed, 26 Aug 2009 00:44:28 -0400
Message-ID: <8CBF41F07B0488C-130-319AB_at_webmail-m025.sysops.aol.com>

Oh one of these Gamow deals ... lets see, is it:

0.707106781....times the speed of light (dividing by the square root of
two to cancel out the dilution of someone watching you, who thinks you
have traveled at 6.18... years?)?

The "..." because exactly is a pretty strong statement and I am
keyboard challenged to write (1/(sqrt(2))*c since the parentheses get
confusing.

Best wishes, Doug



-----Original Message-----
From: Rob Matson <mojave_meteorites at cox.net>
To: Meteorites USA <eric at meteoritesusa.com>
Cc: meteorite-list at meteoritecentral.com
Sent: Tue, Aug 25, 2009 11:56 pm
Subject: [meteorite-list] Speed-of-light question



Hi Eric and List,

> Light itself travels 186,000 miles per second. Do most people
> really understand how fast that truly is? Do people realize
> how long it would take to travel ANYWHERE in our universe?

At the speed of light, you can actually travel anywhere in the
universe *instantaneously* -- from your own reckoning of time.
Which brings up a special relativity question for you all: at
what velocity must you travel in order to reach Alpha Centauri
(4.37 light-years away) in exactly 4.37 years -- by *your*
reckoning of time?

--Rob


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Received on Wed 26 Aug 2009 12:44:28 AM PDT