Re: Mimicking an event horizon in flat spacetime
- From: stevendaryl3016@xxxxxxxxx (Daryl McCullough)
- Date: 10 Oct 2006 20:29:04 -0700
Edward Green says...
I wondered if a particle can be accelerated so hard in a fixed
Lorentzian frame that (i) a light pulse can't catch it, and (ii) it
will experience only finite proper time between now and infinity.
I actually think that this is more of an analog of the singularity
than the event horizon. Accelerating in flat spacetime so that
infinite coordinate time corresponds to finite proper time means
accelerating so rapidly that no physical object (other than possibly
point particles) could survive. At the end of a finite amount of
proper time, the traveller is most assuredly dead, the matter in his
body ripped to its component elementary particles.
In contrast, the event horizon is quite mild. A small enough object
falling through the event horizon of a sufficiently large black hole
will feel no infinite forces as it crosses the horizon.
--
Daryl McCullough
Ithaca, NY
.
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