Did you know that "megalith" means "big rock", which is certainly a good description of Stonehenge?
Earth and Space Science Concept of the Day
Do you know what this word or phrase means?
Refraction
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
Corals in the Caribbean are threatened by global warming and climate change. Most of the efforts to conserve corals in this area have focused on the most diverse corals in the center of the Caribbean....Read more