@[email protected] to [email protected]English • 2 days agoGraphene at 20: still no sign of the promised space elevator, but here’s how this wonder material is quietly changing the worldtheconversation.comexternal-linkmessage-square20fedilinkarrow-up192arrow-down12
arrow-up190arrow-down1external-linkGraphene at 20: still no sign of the promised space elevator, but here’s how this wonder material is quietly changing the worldtheconversation.com@[email protected] to [email protected]English • 2 days agomessage-square20fedilink
minus-square@[email protected]linkfedilinkEnglish7•edit-21 day ago Astronauts on the ISS are currently zipping along at at 7.67 km/s just fine. And we’ve all been zipping around the sun at 29.78 km/s since each of our inceptions.
minus-square@CypherlinkEnglish5•16 hours agoOur Sun moves around the centre of the Milky Way at a speed of 240 km/s or 864,000 km/h, so do we plus or minus ~30km/s!
And we’ve all been zipping around the sun at 29.78 km/s since each of our inceptions.
Our Sun moves around the centre of the Milky Way at a speed of 240 km/s or 864,000 km/h, so do we plus or minus ~30km/s!