[ExI] Breakthrough Starshot - To The Stars!

Rafal Smigrodzki rafal.smigrodzki at gmail.com
Sat Apr 16 00:39:23 UTC 2016


On Thu, Apr 14, 2016 at 4:30 PM, Adrian Tymes <atymes at gmail.com> wrote:
>
> Further, accelerating to even just 0.1 c (about 3 * 10^7 m/s) over a few
> hours (call it 10,000 seconds, roughly 3 hours) comes to about 300 Gs.  And
> they're just launching nanocraft.  I do not think they will be able to come
> up with a design that would not shatter, breaking the reflector so they
> don't even wind up accelerating dust, let alone functioning spacecraft, to
> nearly the speed desired.  Granted, 90 hours - just shy of 4 days
> continuous - would drop this to around 10 Gs, which may be feasible
> depending on spacecraft design.
>
### Peak accelerations in handguns are on the order of 30 to 200 thousand
g. There are now bullets that survive this acceleration and deploy control
vanes to allow in-flight guided targeting.

300 g should be very easy to deal with, it's equivalent to the acceleration
of a soccer ball.

Rafał
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