Spacetime wave packets: New class of laser defies laws of light physics

Scientists have created a new class of laser beam that appears to violate long-held laws of light physics. These new beams, which the team calls “spacetime wave packets,” follow different rules of refraction, which could lead to new communication techn… Continue reading Spacetime wave packets: New class of laser defies laws of light physics

World-first “impossible” rotating detonation engine fires up

A Florida team working with the US Air Force claims that it’s built and tested an experimental model of a rotating detonation rocket engine, which uses spinning explosions inside a ring channel to create super-efficient thrust.Continue ReadingCategory:… Continue reading World-first “impossible” rotating detonation engine fires up