LIGO measurement precision
Appears in 1 lecture.
Appearances across the corpus
So getting back to my lecture yesterday — I started talking about measurement leading to science. There's the Lord Kelvin quote. Then we started talking about observables, and the real theme on observables is, I wanted to take you from the sublime to the ridiculous. The sublime is LIGO, one part in 10 to the 22nd. And the ridiculous is I get up here with a grinding wheel and start showing you sparks.