a thoughtful web.
Good ideas and conversation. No ads, no tracking.   Login or Take a Tour!
comment by am_Unition
am_Unition  ·  891 days ago  ·  link  ·    ·  parent  ·  post: SpinLaunch conducts first test of suborbital accelerator at Spaceport America

Is ripping through a membrane good for attitude control? Asking for a friend.

I wonder if their was enough of a pressure difference that the sudden pressurization of the chamber housing the lever arm did some damage. I dunno, the membrane isn't being aggressively sucked into the chamber, so far as I can tell.

So yeah they definitely haven't solved the system-of-interlocks problem they'll need for the exit tube, then. There's no way you can use a membrane for full speed/power. Even if you find some magical membrane able to withstand the required pressure difference but still break gracefully, if that lever arm sees 1 atmosphere doing Mach 6, you're donezo. Like the whole facility. Ruined. Good luck.

This shit is hilarious. Absolutely hilarious. There's a longer video in the article's comments that includes the phrase "I was skeptical at first". LOL "Then I heard Hanz Zimmer set to a tumbling hunk of lead, and I knew the world was changed forever".





kleinbl00  ·  891 days ago  ·  link  ·  

Yeah that was the one you linked to initially and it's comedy goddamn gold

    I wonder if their was enough of a pressure difference that the sudden pressurization of the chamber housing the lever arm did some damage.

Look. That "factory" video you linked to? The Zimmery one? (more Clint Mansell, tbh) 32 seconds in. Whoosh whoosh whoosh whoosh whoosh.

Either (A) they foleyed in some whoosh whoosh whoosh whoosh to sound more awesomer because their GoPro was actually in reasonably hard vaccuum where there isn't any sound (certainly no high frequency) or (B) fucker weren't in vacuum dawg.

Goin' with B.

THERE'S AN IKEA STOOL IN THEIR PROMO MATERIAL

am_Unition  ·  890 days ago  ·  link  ·  

oh shit I their thered

can't edit when quoted

am_Unition  ·  891 days ago  ·  link  ·  

Could it be picking up audio through the structure? That'd still attenuate the highs, though. If the chamber isn't at any vacuum whatsoever, what is the function of the membrane? Only other thing I can think of is helping contain shrapnel if the thing disintegrates inside.

And that's really weird, we actually didn't use Ikea products in any of the labs that I know of. I guess, uhh, that's just the future. Like SpinLaunch.

kleinbl00  ·  891 days ago  ·  link  ·  

    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.