The flight is short (both in time and height — try around five feet) but it is another proof-of-concept for a method of getting off the surface of the Earth without the use of huge liquid or solid fuel boosters.
The video:
Also from the link:
Early this year, scientists in Japan successfully “launched” a tiny metal rocket using an unusual source of thrust – microwaves. The test was the latest a proof of principle for a kind of propulsion that has never been the beneficiary of the levels of investment poured into traditional chemical rockets, but which its proponents say could some day be a superior way to get spacecraft into orbit.
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