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by adolph
1701 days ago
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An automatic celestial navigation system for navigating both night and day by observation of K-band or H-band infrared light from multiple stars. https://patents.google.com/patent/US7349803B2/en In this celestial map, the bodies of the solar system are placed so exactly that those versed in astronomy could calculate the precession (progressively earlier occurrence) of the Pole Star for approximately the next 14,000 years. Conversely, future generations could look upon this monument and determine, if no other means were available, the exact date on which Hoover Dam was dedicated. https://www.usbr.gov/lc/hooverdam/history/essays/artwork.htm... |
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