Toots for nyrath@spacey.space account

Julius Caesar, in his account of the Gallic Wars written more than more than century earlier, also described Celtic women participating in public affairs, exercising political influence -- and having more than one husband.

"When the Romans arrived, they were astonished to find women occupying positions of power," said Miles Russell, an archaeologist at Bournemouth University and co-author of the new study in Nature.

https://www.nature.com/articles/s41586-024-08409-6

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Written by Winchell Chung ⚛🚀 on 2025-01-17 at 12:23

Col. Faulkenberg, your Nemourlon armor has arrived...

https://scitechdaily.com/nano-chainmail-unveiled-revolutionary-material-for-lightweight-tough-protection/

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Written by Winchell Chung ⚛🚀 on 2025-01-17 at 01:52

https://m.youtube.com/shorts/Bw4DHp25no8

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Written by Winchell Chung ⚛🚀 on 2025-01-17 at 01:45

From the hellsite

Starship Flight 7 breaking up and re-entering over Turks and Caicos

https://x.com/adavenport354/status/1880026262254809115

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Written by Winchell Chung ⚛🚀 on 2025-01-16 at 01:53

https://curiosmos.com/could-this-bold-new-spacecraft-make-interstellar-travel-possible-within-our-lifetime/

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Written by Winchell Chung ⚛🚀 on 2025-01-14 at 11:11

When i was a boy, I enjoyed Heinlein's future history.

In the Sociology column, it notes "Religious dictatorship in U.S." somewhere between the year 2000 and 2100. As a boy in the 1960s I found this to be unlikely and ridiculous.

But I am not laughing now...

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Written by Winchell Chung ⚛🚀 on 2025-01-14 at 09:55

https://xkcd.com/3037/

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Written by Winchell Chung ⚛🚀 on 2025-01-13 at 23:24

Back in those wonderous days of yore when Google Plus still existed, a gentleman in a #TTRPG thread was musing about character attributes to define your players character

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Written by Winchell Chung ⚛🚀 on 2025-01-11 at 14:15

Supplemental question:

Some references say that spacecraft can use attitude jets or reaction control systems for ullage. Why don't the attitude jets require ullage themselves? I know that they do not use huge turbines like the main engine, but they are not solid fuel.

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Written by Winchell Chung ⚛🚀 on 2025-01-11 at 13:14

Mastodon spaceflight mass-mind, please come to my aid. My google-fu is failing me.

In the Apollo program, Saturn V’s S-II (second stage) employed four ullage motors situated on the aft interstage skirt. Additionally, the third S-IVB stage incorporated an Auxiliary Propulsion System designed for ullage purposes. These settled the fuel so the engines did not injest vapor and shred.

Question: why didn't the ullage motors need ullage motors?

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