John A Critzman

u/johncritzman@lemmy.world
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on Mercury astronauts · c/pics · 4 pts · 120d

That's fairly close actually! Their suits were still be manufactured and the all the boots weren't finished for the photo shoot. These space suits were custom made to fit each astronaut after all. So someone ran to the hardware store the day of and picked up some boots and silver spray paint to make it work. I feel like they should've had them stand in the back to help hide how different they were.

on Robert Goddard and Nell · c/photography · 2 pts · 132d

Actually Von Braun developed his own liquid fueled rocked system independent of Goddard! He was accused of stealing his idea but the papers and research Goddard had published by that point did not contain enough info on his own personal designs to be copied. He did greatly inluence early american rocket development though.

So these gas masks (small box respirator or SBR) are absolutely awful to wear. First off, they don't form a seal around the wearer's face with the actual mask. That's just heavy or treated canvas to reduce gas getting to your eyes. You breathe in filtered air through a snorkel mouthpiece directly connected to the filter via that hose, and exhale through a little check valve flap underneath. Oh and for your nose there's a clip that pinches it shut so you only breathe through your mouth. Vision is terrible through the eye pieces and you're supposed to be able to don the mask in seconds when there's a gas alarm. Then they expect you to fight in a trench with a big long rifle with a bayonet at the end! (Source, I own a historical reproduction SBR)

But when I'm at the club with my friends and I pull out the Pickett model N600-ES speed rule to calculate the tip, all the eyes are on me

Moves C index to 2 on the D scale

Moves indicating line to 2 on the C scale

Reads 4 on the D scale

Good thing 2+2 and 2*2 yield the same answer. Would have to bust out the addiator otherwise

on Tired rule · c/196 · 3 pts · 1y

Is that you, Kyle "The Yellow Dart" Smith?