Re: no proof against creationism
- From: Lorentz <drosen0000@xxxxxxxxx>
- Date: Wed, 20 Jun 2007 11:10:38 -0700
One can travel faster than light.
If you could build a ship that travelled at .98 the speed
of light, and travelled out 5 light years and came back,
ten years would have passed on earth.
However, because of time dilation, the
5light yearjourney took only 1 year
for the people on the ship, and one year
back, thus aging only 2 years, and jumping
8 years into the future when they got back
to earth.
D = R * T
10 light years = R * two years aged.
What is the rate of travel?
R = 5c for the people on
the ship.
I must correct a previous answer. The people of earth travelled
on 1 light year at 0.98c. Once the people in the ship are accelerated
from the earth, the distance between earth and destination is only 0.5
light years. Lorentz contraction applies. However, if asked their own
(shipside) velocity they would say 0c. This is because they haven't
gone anywhere, which is 0 light years.
When I get into the issues of acceleration, of course, I lose
everybody including most physicists. I have sat down and sorted out
what the acceleration does in the problem, and how it resolves the
apparent paradox. Part of the solution is that DURING THE ACCELERATION
only, the ship people will perceive of distant objects as going faster
than the speed of light. However, they will only perceive the MOST
DISTANT OBJECTS that way. The people on the ship will perceive the
people on earth as having an enhanced rate of aging, but they will
perceive that only for the period of the acceleration. However, you
can say if you want that the people on earth have exceeded the speed
of light. In that sense, I have to conceed to your superior intellect.
I guess the Creationist analogy is when they say that a new form
of life can not be generated by a randomly driven variation. I agree
if we are talking about the exact moment the a new variation. Over
very short periods of time, one can say that there is no such thing as
speciation. There is just random variation. And over longer periods of
time, the speciation event may not be obvious. But after large number
of variations accumulate, and after a few extinction events, the
evolution becomes obvious. The evolution is evident only for the MOST
DISTANT SPECIES.
.
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