So did you know that no-one really knows why the most used spacecraft propulsion system today actually works? I have been bored and kind of sick for the past 2 days so here is a quick thread on Hall thruster physics: 1/

@ClearOrbit @RocketLab @BlackSky_Inc Not masks, hairnet for the beards 😉

@suchnerve The funny thing is that, from my personal experience, it's the conservative type who get the most embarrassed by messing up pronouns.

@servomechanica Doesn't shock me as a crazy part count for that size of assembly.

RT @ieatcrayons_3: someone is gonna die from this

@83dollaroring Being bullied out of alloying elements and high octane fuel probably doesn't help either.

@JimTheSpaceman Have you read the Mars trilogy by KSR? Otherwise Calculating Star by Kowal.

@LowRhoUfo What's the US equivalent of the Swan Lake? I feel like it would have to be some sort of musical

RT @LowRhoUfo: Why is my TV playing Swan Lake?

RT @Skyhawkson: POV: You're Commander in Chief of the military whose helicopter just killed 64 civilians in an accident, and you can't even…

RT @DavidJDPhotos: I wish I could say this level of dishonesty was unbelivable, but unfortunately it is not. The last admin remanifested B…

@83dollaroring I have been trying to reverse engineer some things and I swear you can tell when the word got passed around that a certain info was not to be public anymore. But sometime you get a NASA guy who has worked on it for 20 years and still manages to pass a thing or 2 on NTRS.

Am I the only one who still finds Wolfram Alpha way more useful than general purpose "AI"?

@McMasterDaily Sad that the ETFE ones are not marked at nuclear grade because that's how most vendor market them.

@DrChrisCombs Just for info. Don't hack a shopping trolley into a BBQ grill. The zinc coating burning off is not good for you. (Engineering school lore here).

RT @gak_pdx: I would love to see AI in CAD, but I have almost no interest in AI based CAD. What I want: "NX - replace the M5 fasteners in…

@chet_wiltshire @SpaceTrackOrg @SpaceX The transporter launches are notoriously bad for that. In past I think I waited at least a week.

RT @sigfig:

@lavie154 Looks like the language is exactly the same for other gov departments and agencies so it clearly came from the top.

@Skyhawkson @emm0sh And 20 min with a diamond bit Dremel when shear their head off because you looked at the funny (ask me how I know).