HackerTube / Video
The Absurdity of Detecting Gravitational Waves
Veritasium
Veritasium explains in detail how LIGO detects gravitational waves, with a laser interferometer measuring displacements smaller than a proton. The video focuses on the extreme precision and the techniques needed rather than the general discovery story.
HN recommends it as a good layperson explanation of how LIGO's detection works and why it is so hard.
6 Hacker News mentions · 2017–2019