Scientists achieve optical control of phase and group velocities in everyday liquids
The phase and the group velocity of light propagating in conventional optical media cannot exceed the speed of light in ...
The Jerusalem Post Blogs23d
'Horsepower': New interactive exhibit premiers at Bloomfield Science Museum
In LED bulbs, light is produced almost directly by the movement of electrons jumping from one energy level to another in a process of ionization and excitation. But who knows what will replace ...