Comment Comment by ck2 can GPS sats figure out the mass of the earth by being able to detect its gravitational distortion on their orbit?or maybe that upcoming space laser interferometer (LISA) since it has to figure precisely how all mass is affecting its position?I love the history of figuring the circumference of the earth, imagine getting it right within 2% in 240 BC(then Columbus effing it up by 25%)https://en.wikipedia.org/wiki/Earth%27s_circumference#Histor... parent ck2 9 months ago
or maybe that upcoming space laser interferometer (LISA) since it has to figure precisely how all mass is affecting its position?
I love the history of figuring the circumference of the earth, imagine getting it right within 2% in 240 BC
(then Columbus effing it up by 25%)
https://en.wikipedia.org/wiki/Earth%27s_circumference#Histor...