Machine guns are just paperweights if arrows are dime a dozen but 6.8x51mm is still at advanced stages of development. EV charging in mechanical parking system is still an unsolved problem and gas filling experience remains more than tolerable.
The entire metal platform that holds the car is moved around like a data tape in a tape library in mechanical systems. A third rail system to handle L1/L2 EV charging do exist, but upgrades aren't common. I think not many are being newly built but there are many operating in ultra dense areas.
dluan · · focus · HN ↗
numpad0 · · focus · HN ↗
pjc50 · · focus · HN ↗
I'm not familiar with this; don't you just plug it in?
numpad0 · · focus · HN ↗