Gsus4@mander.xyz to Technology@lemmy.worldEnglish · 9 months agoMade in space? Start-up brings factory in orbit one step closer to realitywww.bbc.comexternal-linkmessage-square18linkfedilinkarrow-up179arrow-down18
arrow-up171arrow-down1external-linkMade in space? Start-up brings factory in orbit one step closer to realitywww.bbc.comGsus4@mander.xyz to Technology@lemmy.worldEnglish · 9 months agomessage-square18linkfedilink
minus-squareAuth@lemmy.worldlinkfedilinkEnglisharrow-up7·9 months 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-squareGsus4@mander.xyzOPlinkfedilinkEnglisharrow-up21·edit-28 months 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-up3·8 months 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?
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.