A height finder is a ground based aircraft altitude measuring device.
Early height finder implementations were optical devices and later migrated to radar devices. Devices combining both optics and radar were deployed by the U.S. Military.
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“Men often treat others worse than they treat themselves, but they rarely treat anyone better. It is the height of folly to expect consideration and decency from a person who mistreats himself.”
—Thomas Szasz (b. 1920)
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