Tokyo University's "Microwave Rocket"
LiftOp writes "Apparently a group from Tokyo University's Department of Advanced Energy has
used a high-power microwave beam to heat the air beneath a model rocket
, sending it skyward (well, two meters).
Dr. Kimiya Komurasaki, who led the group, seems to be quite a
directed energy
buff; when the rocket eventually gets beyond the air level, a conventional motor could be used to send it further."
Ah, well the point of it is simple. A rocket normally requires a LOT of lift of energy precisely because it needs to lug tons and tons of fuel up with it as it moves a long. By dropping those fuel-pounds, or at least some of them, you can carry a lot more stuff... More stuff into space is a Good Thing.