Anton Sherwood (
Mon, 21 Jul 1997 19:48:27 -0700 (PDT)

A little bird told me that wrote:
> I once heard some science show say that the energy yield from a
> theoretical anti matter engine would get us to Pluto in nine
> minutes...

Pluto is more than five light-hours away. Thanks to special
relativity, though, a big enough engine can get you anywhere in
the universe in an arbitrarily short subjective time. Whether
you'd be three-dimensional after the ride is another question.

Dan Clemmensen responded:
> [...] You will not exceed the speed of light.
> Therefore, you cannot reach Pluto in less than 39 hours (as I recall.)

39 astronomical units, not 39 light-hours. The astronomical unit
is the mean distance between Earth and Sun, about 498 light-seconds.

Anton Sherwood *\\* +1 415 267 0685 *\\*