@[email protected] to [email protected] • 3 months agoNASA's solar sail successfully spreads its wings in spacewww.space.commessage-square66fedilinkarrow-up1485cross-posted to: [email protected][email protected][email protected][email protected]
arrow-up1485external-linkNASA's solar sail successfully spreads its wings in spacewww.space.com@[email protected] to [email protected] • 3 months agomessage-square66fedilinkcross-posted to: [email protected][email protected][email protected][email protected]
minus-square@[email protected]linkfedilink1•3 months agoElse 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.