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  • Orbits are circles or ovals, and the satellite must always be moving to stay in orbit. But the time to go around depends on the distance, so there is a distance where the satellite takes 24 hours to go around, which matches the Earth's rotation, which is geosynchronous. A subset of these is called geostationary, when the orbit is a circle around the equator, so it stays in the same spot of the sky. (Then we can aim a ground antenna just once and don't have to adjust it.) Satellites at this distance add 1/4 second delay to any signal because of light speed. This orbit is very tight, since it can not vary in altitude by more than a few hundred meters. (More than that would cause them to drift east or west out of the assigned spot.) There are a limited number of "slots" in this orbit to keep the satellites safely separated and to prevent their signals from overlapping. Most of these are used for communication, especially TV. A few are for weather, as they can watch an entire hemisphere constantly.

    Other satellites operate in a lower orbit. Here the orbital period can be as low as 90 minutes. Most of these orbits are inclined so they pass over most of the earth instead of just the equator. The orbit (circle) stays in one angle while the earth rotates underneath. Satellites here get better images because they are closer to Earth, but take a day (or more) to see everything. They also have greatly reduced light speed delays. These orbits eventually decay because of tiny amounts of air at that altitude.

  • Russia standard procedures seems to be to put a bandaid on the wounded and send them back, or else leave them where they lay. They are not using the modern battlefield medicine practices that resulted in higher ratios of wounded to dead in most modern Western warfare.

  • Article says "the machines are capable of sending estimated ages and genders" so it's not recognizing individuals, but perhaps adjusting the sales pitch for who it sees walking by.

    (But it's a collage campus, so most students will be around the same age. Maybe it pitches different things to teachers?)

  • Nearly all such software support CUDA, (which up to now was Nvidia only) and some also support AMD through ROCm, DirectML, ONNX, or some other means, but CUDA is most common. This will open up more of those to users with AMD hardware.

  • Quack

    Jump
  • It houses the two antennas. One is for searching the sky for a target, the other gives more precise angles for putting the gun on target. It can operate semi-autonomously to destroy fast moving targets.

    Https://en.wikipedia.com/wiki/Phalanx_CIWS

  • Of course they are free to set their own price, but when the system tells them they should charge a higher price "due to market conditions" of course they take the easy way out instead of actually researching the market. So it's both, but mostly the first because they are lazy.

  • There are plenty of options in the US for adjustable pressure. Mine has pressure on the big lever, and temperature on a smaller level. It even has pressure compensation when somebody flushes a toilet, so there's no temperature change. But the type you show there does seem to be the default selection for new construction.

  • Since the pocket dimension would be sea level pressure, dipping into it for a breath when you're deep is a sure way to get the bends, which would be a painful way to die. (Especially if nobody is there to help you.)