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This article says that the water drop is added to the back of the paper “as a wall against which the metal plume could push.” It seems more likely that the heat of the laser would even more violently vaporize the water, creating a small explosion that would drive the plane forward via the relatively […]
By Science News -
PhysicsPaper planes get laser liftoff
Powering aircraft by remote lasers works—at least on paper.
By Peter Weiss -
EarthStudy links cancer to Vatican Radio
Broadcast transmissions from a forest of antennas owned by Vatican Radio, outside Rome, appear to have boosted leukemia incidence in neighboring communities.
By Janet Raloff -
Health & MedicineMethod could boost diabetes therapy
Allowing insulin-producing islets to grow in close contact with each other during cell culture may increase the chance of successful transplant into diabetic people.