On: Physicists Detect Gravitational Waves, Proving Ein...

[nitrogen]

Is your speculation that the gravity wave detectors would be able to detect the changes in gravity caused by movements of people and things?

Submarines already do this to detect other vessels AFAIK.

[bbcbasic → nitrogen]

Surely you are thinking of Sonar?

[nitrogen → bbcbasic]

No, this came up on Hacker News recently: https://news.ycombinator.com/item?id=10810390

[matheweis → nitrogen]

Gravity for navigation, perhaps ... but I believe they use magnetic fields, not gravitational fields, to detect other subs (and also some rather sophisticated real-time degaussing to prevent said detection): https://news.ycombinator.com/item?id=10979452