3 ms·
This may be an incredibly stupid question, but I know they used gravimeters to map the ocean floor on subs. And I recall an anecdote of snow fall on a roof eff
by deutronium 10y ago
This may be an incredibly stupid question, but I know they used gravimeters to map the ocean floor on subs.
And I recall an anecdote of snow fall on a roof effecting their results in a lab, could you possibly use them to detect other subs.
- brandmeyer 10y agoIf it is based solely on mass, then I don't think so. A submerged submarine is almost neutrally buoyant[0]. It has the same average density as the water around it. Therefore, the mass of the ship is the same as the mass of the water it displaces, and a gravimeter wouldn't observe anything different. [0] Err, almost. There is no such thing as perfectly neutral buoyancy. In practice, they are very slightly heavy and fly though the water as a lifting body.
- deutronium 10y agoCheers! That's a very good point.