Re: Re: Time..... If we could we would? (or at least they would tell us)
- From: "N:dlzc D:aol T:com \(dlzc\)" <dlzc1@xxxxxxx>
- Date: Sat, 19 Apr 2008 11:37:57 -0700
Dear Jason Needham:
Please don't top post. It is considered rude.
"Jason Needham" <jasonneedham@xxxxxxxxxxx> wrote in message
news:652k045f92mo6sldt4j8pep1ilmvumgglv@xxxxxxxxxx
On Sat, 19 Apr 2008 10:26:05 +0100, Martin Hogbin....
<goatNOSPAM1@xxxxxxxxxx> wrote:
In other words, although general relativity does
not rule out the possibility of time travel it may
remain practically impossible.
Your choice of words "practically impossible"
causes me to pause. Much as S.E.T.I.
searches the heavens it seems we may need
to reexamine not only what is theoretically
plausible but also what may be technically
feasible.
Which is why he added "practically" before "impossible".
Here is what we know. Time travel requires violation of several
conservation laws- conservation of energy (mass dissappears from
one age, and is duplicated in another age), conservation of
momentum (mass has one momentum, then has to have a completely
different momentum when the Earth for example is in a different
place... to say nothing of position), and Pauli exclusion
probably will apply as well.
Keep in mind that the Earth is propagating at 300 km/sec, and has
non-trivial orbital and rotational components as well. Travel
100 years in either "direction", and you end up in deep space.
Even an hour would be fatal.
Much in the same way inventing a radio
incorporated the development of broadcast
technology, we may find the future is just
waiting for us to put "our ears on".
What if the past you would travel through is merely the tissue
the Universe makes to support any given now? Be hell to find you
were behind the "props", with no way back...
David A. Smith
.
- Follow-Ups:
- Re: Re: Re: Time..... If we could we would? (or at least they would tell us)
- From: Jason Needham
- Re: Re: Re: Time..... If we could we would? (or at least they would tell us)
- References:
- Time..... If we could we would? (or at least they would tell us)
- From: Jason Needham
- Re: Time..... If we could we would? (or at least they would tell us)
- From: Martin Hogbin
- Re: Re: Time..... If we could we would? (or at least they would tell us)
- From: Jason Needham
- Time..... If we could we would? (or at least they would tell us)
- Prev by Date: Re: thermodynamics and the universe
- Next by Date: Re: Surprisingly, Tom Robert's paper vindicates Miller
- Previous by thread: Re: Re: Time..... If we could we would? (or at least they would tell us)
- Next by thread: Re: Re: Re: Time..... If we could we would? (or at least they would tell us)
- Index(es):
Relevant Pages
|
