3 ms·
I don't understand how this would work. Do we somehow already have that super-accurate "map of g"? Wouldn't one already have to exist to be able to use quantum
by crispyambulance 3y ago
I don't understand how this would work.
Do we somehow already have that super-accurate "map of g"? Wouldn't one already have to exist to be able to use quantum navigation? Moreover, would it not also require integration with a gyro and a lot of history to be able to know, for instance, which place it's at of many in any given ocean where g = 9.8100023?
Does g really vary that much that you can figure out where you are with it with sufficient accuracy to do military stuff?
- andromeduck 3y agoYes, and yes. We've had the gravity maps for about a decade now, and the tech for recovering the location given such data was mastered in the late 80s, but no way to make accurate enough measurements while at sea until now. https://news.ycombinator.com/item?id=36223373 https://news.ycombinator.com/item?id=36223373