Even just getting above the boiling temp of liquid nitrogen is a really big deal. Liquid helium is something we will eventually run out of and is largely dependent on fossil fuel extraction to be collected. Helium can’t be recaptured after it escapes an open loop cooling system.
LN2 is so much cheaper to run and it’s sustainable. We’ll never run out of Nitrogen so long as there’s power to cool it. LN2 is cheaper than craft beer.
The speed of sound in seawater is around 1500m/s or 5400 km/hr. Something tells me they won’t actually be going supersonic.
The article shouldn’t be referencing the speed of sound without specifying the medium for the sound waves and conditions such as temperature for water or temperature and pressure for air.
Also, the supercavitation would be incredibly noisy underwater, and at those speeds the vessel itself would produce a very loud pressure wave that would be easy to detect. So its advantage wouldn’t be in avoiding detection, it would be in moving fast enough that detection doesn’t matter because no torpedo could intercept them.
I wish there was a place where I could try before buying.
I tried an occulus dev kit a long time ago which made me horribly nauseous. I know vr has come a long way since then so I’d love to see if the improvements are sufficient to make it usable for me now or if I’m just doomed to motion sickness with goggle displays.
It really depends on what and how you play. If reaction time is important then you’ll feel more than see the difference in refresh rates. If none of your games require sub second reaction time accuracy, then it’s much more of a nice to have luxury than a game changer.
Also, frametime pacing matters a lot. If your system very consistently puts out 30 fps, you’ll have more accurate keypresses than if you normally get 50 and it gets hung on a few frames and it dips to 30fps. Your nervous system adapts pretty well to consistent delay, but it’s much more difficult to compensate for delay that varies a lot.
I don’t really play first person shooters so resolution matters more to me than framerate.
Maybe if it supported driving 3+ displays for use as a workstation docking station. If it was on the order of $150-$300 it would be price competitive with thunderbolt docking stations.