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You don鈥檛 always have to prove something works to patent it. But if anyone
sees UFOs whizzing around in the skies over Bucharest, it may mean Romanians
Grigore and Panait Nika have got their ambitious 鈥渦niversal transport system鈥�
off the ground (WO 01/611889). They describe a flying saucer, built from two
wheels that spin in opposite directions to 鈥渁nnul gravity鈥濃�攍ike you
do鈥攁nd at the same time creating a low-pressure lift effect over the upper
surface. They also explain how the saucer can be mounted inside a large globe to
create a handy flying sphere.