Gsus4@mander.xyz to Technology@lemmy.worldEnglish · 19 hours agoMade in space? Start-up brings factory in orbit one step closer to realitywww.bbc.comexternal-linkmessage-square9linkfedilinkarrow-up143arrow-down15cross-posted to: science@lemmy.world
arrow-up138arrow-down1external-linkMade in space? Start-up brings factory in orbit one step closer to realitywww.bbc.comGsus4@mander.xyz to Technology@lemmy.worldEnglish · 19 hours agomessage-square9linkfedilinkcross-posted to: science@lemmy.world
minus-squareAuth@lemmy.worldlinkfedilinkEnglisharrow-up3arrow-down1·19 hours agoPretty interesting. How come they can get 1000c in space but not on earth? Doesnt the vacuum of space make it hard to retain heat?
minus-squareDecq@lemmy.worldlinkfedilinkEnglisharrow-up2·7 hours agoThe article doesn’t state they can’t reach that temperature down on earth, and many processes do. It’s really not the jist of the article. Space manufacturing is interesting for the micro-gravity and better vacuum/less contamination. .
minus-squareGsus4@mander.xyzOPlinkfedilinkEnglisharrow-up9·edit-211 hours agoVacuum is a perfect thermal insulator. The only real losses are radiative. Edit: From Stefan-Boltzmann: up to (not sure about emissivities, but could be down to 10% of this) 100kW for a black body of 1m diameter at 1000C.
minus-squareAuth@lemmy.worldlinkfedilinkEnglisharrow-up3arrow-down1·19 hours agoI’m completely unaware of the science around it all but none the less its exciting stuff, i hope to read more about it as things progress.
Pretty interesting. How come they can get 1000c in space but not on earth? Doesnt the vacuum of space make it hard to retain heat?
The article doesn’t state they can’t reach that temperature down on earth, and many processes do. It’s really not the jist of the article. Space manufacturing is interesting for the micro-gravity and better vacuum/less contamination. .
Vacuum is a perfect thermal insulator. The only real losses are radiative.
Edit: From Stefan-Boltzmann: up to (not sure about emissivities, but could be down to 10% of this) 100kW for a black body of 1m diameter at 1000C.
I’m completely unaware of the science around it all but none the less its exciting stuff, i hope to read more about it as things progress.