By observing tiny ripples in spacetime called "gravitational waves" that propagate away from colliding black holes, ...

The phase and the group velocity of light propagating in conventional optical media cannot exceed the speed of light in vacuum. However, in so-called epsilon-near-zero (ENZ) materials, light exhibits ...

A research team has developed a revolutionary two-dimensional polyaniline (2DPANI) crystal that overcomes major conductivity ...

Electric sparks are used for welding, powering electronics, killing germs or for igniting the fuel in some car engines. Despite their usefulness, they are hard to control in open space, they split ...