Comment on Shine a laser on the moon
lath@lemmy.world 3 weeks agoBut space isn’t really space because there’s always something in, but we consider it as nothing so we can see space as space.
Comment on Shine a laser on the moon
lath@lemmy.world 3 weeks agoBut space isn’t really space because there’s always something in, but we consider it as nothing so we can see space as space.
benderbeerman@lemmy.world 3 weeks ago
Vacuum does not only infer an area devoid of matter… it’s also considered a vacuum if it has substantially lower pressure than earth’s atmosphere at sea level.
lath@lemmy.world 3 weeks ago
Hold up. Isn’t space under a lot of pressure to expand, only it’s directed outwards, so we ain’t just feeling it?
FooBarrington@lemmy.world 3 weeks ago
No, we don’t yet know why space is expanding. But space has way way waaaaay lower pressure than the earth atmosphere since it’s almost empty. It even keeps sucking away bits of our atmosphere.
lath@lemmy.world 3 weeks ago
You’re telling me nibbling bits of our atmosphere isn’t a form of pressure exerted towards it?
“Hey, gimme your gases! Only just a bite, come on! Yum! Yum!”