einstein.stanford.edu

pm6e TIL the Gravity Probe B has the smoothest sphere ever made. If the GP-B gyroscope was enlarged to the size of Earth, the tallest mountain would be only 8 feet high.
oR8R TIL - Gravity Probe B has the most perfect spheres ever created by man “If GP-B gyroscope’s were enlarged to the size of the Earth, the tallest mountain would be eight feet tall.”