A laser hit the tiny black cube, and it lurched forward almost at once. That split-second jump, caught during a zero-gravity arc aboard a parabolic flight, points to a strange and promising idea for ...

Along with the big ‘Zero-G’ sign painted on the fuselage of the A300 Airbus, the other big clue this was no ordinary flight into Bordeaux-Mérignac Airport yesterday was the blue flight suits worn by ...

Off-axis paraboloid reflector is a special optical element, its main function is to focus the incident light to a certain distance from the optical axis. The working principle is based on the ...