Royal Navy says quantum navigation test a success

Post by kebman » Wed, Jun 07, 2023, 3:18 PM UTC

sakras wrote: post #38

kebman wrote: post #30

Earlier quoted context omitted.

You're probably surprised that you don't see it, because it's top secret. Here's an example of something you don't hear about: AI Assisted Battlefield Tactics. While I've never heard of it (certainly not in the press), I simply assume that they're doing research on it. I base this assumption on the AlphaStar AI from DeepMind that would completely pawn Grand Masters in the game of StarCraft 2. While AlphaStar is obvio…

AlphaStar hardly pawned GMs in any meaningful way. It mainly won on mechanics, even when Deepmind tried to nerf its mechanics. Probably the most important thing is that the “200 APM limit” is way higher than any human can do, because it made use of each one of its actions. Humans can reach 400+ APM by spamming, but their EPM will stay much lower than 200. The result is that it had god-tier micro that changed the game…

Post by whimsicalism » Wed, Jun 07, 2023, 3:26 PM UTC

readyplayernull wrote: post #12

wging wrote: post #6

Earlier quoted context omitted.

The article links to a better article, https://news.sky.com/story/royal-navys-experimental-ship-car... , which calls the device an accelerometer. I think the article linked here got literally all its information from that other article. Apparently it's a small number of rubidium atoms, cooled to near-absolute zero, under which conditions they can apparently measure gravitational effects and make deductions from that…

》measure gravitational effects and make deductions from that ("measure extremely accurately the influence of gravity on their system Aha! So it might be able to detect other submarines, even if they use some stealth tech.

Post by baybal2 » Wed, Jun 07, 2023, 3:27 PM UTC

comboy wrote: post #180

jchallis wrote: post #13

This is the most obvious practical application of my PhD topic. A Bose Einstein Condensate is an extremely sensitive detector of gravity- a nuclear submarine could use it to make an ultra-accurate map of the world based on variations in the gravitational constant g. This would remove one of the primary reasons subs need to surface , in order to GPS lock. It’s a naval chart that would not require surfacing. A French p…

> This would remove one of the primary reasons subs need to surface , in order to GPS lock. Huh? Wouldn't it be enough to send some small thing connected by thin wires or wirelessly to the submarine (lasers, ultrasound, whatever) that could aquire location and communicate it? Given military budgets it could probably even be disposable. Leaving beacons in areas of interest also seems like a good idea. With good encryp…

Post by QQ00 » Wed, Jun 07, 2023, 3:34 PM UTC

rtkwe wrote: post #189

jchallis wrote: post #13

This is the most obvious practical application of my PhD topic. A Bose Einstein Condensate is an extremely sensitive detector of gravity- a nuclear submarine could use it to make an ultra-accurate map of the world based on variations in the gravitational constant g. This would remove one of the primary reasons subs need to surface , in order to GPS lock. It’s a naval chart that would not require surfacing. A French p…

It'd be interesting to see if they're sensitive enough to do the opposite detect the gravity anomaly that is the sub. There's a couple near future submarine warfare books where that's one of the devices used to attempt to find subs.

Post by rtkwe » Wed, Jun 07, 2023, 3:43 PM UTC

QQ00 wrote: post #197

rtkwe wrote: post #189

Earlier quoted context omitted.

It'd be interesting to see if they're sensitive enough to do the opposite detect the gravity anomaly that is the sub. There's a couple near future submarine warfare books where that's one of the devices used to attempt to find subs.

Would love to see a list of such books.