The military wanted to make ships invisible to enemy
detection, whether just to enemy radar or more profoundly so still isn't
clear. In any event, it is thought that they set out to achieve this by
generating an incredibly intense magnetic field around the ship. This field
which would cause refraction ? the bending of light or radar waves, similar
to the mirages you see because of heated air rising from roads on a hot day.
The experiment worked beautifully, it was claimed... except that the ship
actually disappeared physically for a time, and then returned. They wanted
(in true Star Trek fashion) to "cloak" the ship from view, but what they got
was perhaps even beyond the dreams of any science fiction fan, or it would
have been if it had worked properly. Had the ship been through a wormhole?
Apparently it was thought that Albert Einstein's "Unified Field Theory for
Gravitation and Electricity" might be used to help develop a system of
electronic camouflage for ships at sea. Einstein is thought to have
published it around 1925-27 in German, in a Prussian scientific journal, but
it was later withdrawn as incomplete