Gravitational waves: breakthrough discovery after two centur

[tapkaJohnD]

Moonhawk said:

They seem to be described a bit like compression waves in the fabric of spacetime - so I guess they are similar to sound waves in air.

What are the waves made of - the medium through which they are travelling

So in the case of sound waves - they are made of air and in the case of gravitational waves - they are made of spacetime (if the analogy is valid).

And if Quantum is correct - and so far it can't be applied to gravity - then gravitons will have properties of both waves AND particles, juts like photons, electrons etc.
John