I was born in Exeter. I don't have to be fair to Plymouth... (View Post)

Pressure is force/area. Force = mass x acceleration Gravitational field strength can be expressed either as an acceleration or (more properly) as force/mass. It's as if they confused the debt and the… (View Post)

Not you too... How can a pressure be equal to gravity? (View Post)

Apollo 12 landed right by an unmanned probe (by design) and bought a bit of it back. When they examined the camera, they found that someone had sneezed on it while making it. They managed to cultivat… (View Post)

I've just looked at the BBC coverage and someone wrote this: "The spacecraft has now entered the Martian atmosphere, at times feeling pressures of about 10 times the gravity of Earth." Ther… (View Post)