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Comment Re:In the SIMULATOR? (Score 1) 270

With a ground-pointing camera and an estimation of altitude you can use feature detection to get a moderately accurate estimate of speed. This won't work if you're above the clouds, but if you are then doing the same thing with the clouds will give you a rough estimate of air speed, as clouds are approximately stationary relative to the air that contains them.

Comment Re:they've had this place since what 2010? (Score 1) 115

The grid losses are about 7%, but that's because the distances are kept quite small. Most consumers are in the same state as their power stations, and often a lot closer. There's a reason power stations are built quiet close to cities. Try powering the coasts from a solar array in the middle of the USA and you'll see much bigger losses. And the middle of the USA is exactly where you want to have large-scale solar collectors: where you have lots of empty space with lots of sunshine.

Comment Re:they've had this place since what 2010? (Score 1) 115

Solar is not great for powering the grid, where the supply and demand must be balanced and where you want to put the supply and demand close together to minimise transmission losses. It's much better for workloads that are effectively charging batteries. If you stick big solar collectors in the middle of the desert, connecting that up to the grid for the rest of the USA is pretty difficult and you'll still have the problem that there are big demand spikes just as the solar sun starts to set. In contrast, if it's all producing hydrogen (or charging batteries), then you can build up a small surplus to cover times when demand spikes above production temporarily and you just need pipes to ship the water in and trains to ship the power out.

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