Spinning a Ring, size the circumference of the Moon

[liquid51]

Well, "artificial" actually works. A prosthetic limb is by no means a fully functioning replacement of bodily tissues and fluids, yet we call them "artificial". =P

sorry, not really on topic and kind of pointless, but hey... 😉

 

[Calin]

Originally posted by: Armitage

Originally posted by: Armitage
All this and no answer?

a = r * w^2
w = sqrt(a/r)
w = sqrt(9.8/(1738 Km * 1000 m/km))
w = 0.002375 radians/sec

To convert to something more intuitive...
(w*3600 sec/hour)/(2*pi) = 1.36 rotations/hour

Here's the fun part - I put in the radius of the earth into the spreadsheet. If we spin up the earth to 0.71 rotations/hour we could all float around like astronauts 😛 The centripetal acceleration would equal the acceleration due to gravity.

And (even higher technical) would be that we would get paychecks every day 😀