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comment by kleinbl00
kleinbl00  ·  862 days ago  ·  link  ·    ·  parent  ·  post: SpinLaunch conducts first test of suborbital accelerator at Spaceport America

    If the chamber isn't at any vacuum whatsoever, what is the function of the membrane?

it's been a part of their marketing it's bloody well gonna be there in the puff piece, dude. Kinda like how they had to show the damn thing spinning through the air like a goddamn boomerang and then go "no no no that's it heating up from the atmosphere ignore how it cools right back down and heats back up and cools back down and heats back up."

The fact that you can see the yaw of their shotput in the tiny field of view of the exit shows you just how much English they put on that ball.