http://www.wincom.net/softarts/philexp.html
"Project Rainbow was allegedly an experiment conducted upon a small
destroyer escort ship during World War II, both in the Philadelphia
Naval Yard and at sea; the goal was to make that ship invisible to enemy
detection. The accounts vary as to whether the original idea was to
achieve invisibility to enemy radar or whether the prize sought after
was more profound: optical invisibility. Either way, it is commonly
believed that the mechanism involved was the generation of an incredibly
intense magnetic field around the ship, which would cause refraction or
bending of light or radar waves around the ship, much like a mirage
created by heated air over a road on a summer day. The legend goes on to
say that the experiment was a complete success... except that the ship
actually disappeared physically for a time, and then returned. They
wanted to "cloak" the ship from view, but they got de-materialization
and teleportation instead..."
--"The future masters of technology will have to be lighthearted and intelligent. The machine easily masters the grim and the dumb." - Marshall McLuhan 1969
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