What else ?


Waves are common in the nature. For example, image shown is ocean waves as seen from sky. Not all waves are easy to see as this one. Waves travel at finite velocity and can carry energy with them. Gravitational waves are waves propagating in the spacetime itself. The spacetime is the concept given by Einstein, while postulating special theory of relativity. It is belived that, most of the physically sensible theories can be written as wave equation. Read More