kalkulat@lemmy.world to science@lemmy.world · 8 个月前NASA's solar sail successfully spreads its wings in spacewww.space.comexternal-linkmessage-square65linkfedilinkarrow-up1480arrow-down11cross-posted to: technology@lemmy.worldspaceflight@sh.itjust.worksworldinprogress@lemmy.worldastronomy@mander.xyztechnology@lemmit.online
arrow-up1479arrow-down1external-linkNASA's solar sail successfully spreads its wings in spacewww.space.comkalkulat@lemmy.world to science@lemmy.world · 8 个月前message-square65linkfedilinkcross-posted to: technology@lemmy.worldspaceflight@sh.itjust.worksworldinprogress@lemmy.worldastronomy@mander.xyztechnology@lemmit.online
minus-squareMonkderVierte@lemmy.mllinkfedilinkarrow-up1·8 个月前Else they don’t. We are talking quantum here.
So photons do have mass?
only as long as they exist
Else they don’t. We are talking quantum here.