(February 11, 2016 at 5:18 pm)Alex K Wrote: Note also the 10^-21 amplitude. This means that the length of the 4km arms changed by less than 10^-17 meters. That's way smaller than a proton.
Yeah, the news on the radio said 1/1000th the diameter of a proton.
The fact that we can make such a sensitive instrument is, to me, as amazing as the fact that we can detect an occurrence 1.3 billion ly away.
As Freeman Dyson said, "We are the Universe, pondering itself."