So this is what I was doing in 1985 - trying to put a 150 angstrom thick coating of niobium on the world's most perfect crystal ping-pong ball; without making it lopsided.

Gravity Probe B - Extraordinary Technologies on Stanford

To test Einstein's theory of general relativity, Gravity Probe B must measure two minuscule angles with spinning gyroscopes, floating in space. While the concept of Gravity Probe B is relatively simple, carrying out the experiment required some of t...
Thick :-) 0,1nm THICK ;-)

We are glad that @Mike didn't have gone to outer space with this experiment. Stay on earth to go further with our beloved cool overwhelming ~friendica ~friendica :-)

Research at such a laboratory is a cool thing. I worked 20 years ago at a laboratory where they wanted to get the new definition of kg in terms of the count of atoms in a ball of silicium. Counting atoms with a scanning tunneling microscope brings a fascinating view to the world.