"John Larkin" wrote in
message

Oh, if any fool tells you that these were not Doppler detectors, well,
ignore them.

Jim says the door sensors at the supermarket are doppler too, and they work
even when people are not shot at the door from a canon.

It's even amazing that the shells work that way, since they move at a pretty
small fraction of c.

The time-frames defy logic too. Radar is invented, then it took a couple of
years for miniaturized doppler radar, then another 25 years for doppler
radar on the F14.


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