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Burst disc Hybrid + Vacuum barrel = black hole?

Unread postPosted: Sat May 04, 2019 12:51 am
Author: Moonbogg
Vacuum cannons can go supersonic and Hybrid cannons can go supersonic. So, what happens if you have something like a burst-disc hybrid with a big, vacuumed barrel sitting in front of it? Supersonic + supersonic = singularity?

Re: Burst disc Hybrid + Vacuum barrel = black hole?

Unread postPosted: Sat May 04, 2019 1:10 am
Author: mrfoo
The projectile will stay still while its entire surrounding frame of reference will be accelerated "backwards" at the something greater than the speed of sound, obvs.

Re: Burst disc Hybrid + Vacuum barrel = black hole?

Unread postPosted: Sat May 04, 2019 6:42 am
Author: jackssmirkingrevenge
Light gas guns like the ones used by NASA typically have their barrel under vacuum, when you want hypersonic velocities the drag from air in the barrel becomes an issue.

Velocities in the order of 22,000 feet per second are achievable, though this is done by using a propellant driven piston compressing a low density gas as opposed to burning it.

Re: Burst disc Hybrid + Vacuum barrel = black hole?

Unread postPosted: Sat May 04, 2019 1:12 pm
Author: farcticox1
It has been done

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