3 ms·
I’ve often wondered if it would be possible to make a type of gravitational radar. Imagine a large array of this type of detector spread over an area of a few
by jcims 6y ago
I’ve often wondered if it would be possible to make a type of gravitational radar. Imagine a large array of this type of detector spread over an area of a few square km. Combine the force vectors of each toward any specific point and it seems you should be able to monitor the masses at that point.
Edit: measuring the force of the ISS passing over head would require femtonewton precision for a mass of 100kg. Might be a bit tricky lol
- Gravityloss 6y agohttps://grace.jpl.nasa.gov/mission/grace/ https://grace.jpl.nasa.gov/mission/grace/
- deleted 6y ago[deleted]
- rocqua 6y agoThis is an amazing idea for sci-fi! Spread the masses out over orbit, measure net gravity on those (by orbit deviations?), and you should be able to detect changes in gravity from distant objects. With enough spread maaaaybe you could do something with parallax to detect distance too. Imagine a system like this in 'the expanse' to detect the stealth asteroids hurled towards earth. Or, in general, to detect massive ships that are 'on the float'.
- hugh-avherald 6y agohttps://en.wikipedia.org/wiki/Cavendish_experiment https://en.wikipedia.org/wiki/Cavendish_experiment