xRefraction : Refraction is the deflection, or bending, of the ray path of a seismic wave caused by its passage from one material to another having different elastic properties; or the bending of a tsunami wave front owing to variations in the water depth along a
Scientists know that more of the Sun’s energy gets to our planet than leaves. It hasn’t always been this way. More energy is sticking around as heat because there are more heat-trapping greenhouse gases...Read more