On Fri, May 20, 2016 at 9:58 AM, Tim <xxxxxx@little-possums.net> wrote:
> On Thu, May 19, 2016 at 01:11:10PM -0400, Jeffrey Schwartz wrote:
>> I'm kinda wondering what would happen if you skimmed off 0.001% of the
>> kinetic energy of a tachyon passing through the sail.
>
> According to current theories, if tachyons were to exist, they would
> always have less kinetic energy than photons of the same momentum.
> In some cases, even zero or negative.
>
>

Negative.
Hmm.

Don't the Alcubierre drive equations get easier to put into
engineering if you have "negative energy"/"negative mass" to play
with?