Do you know the main points of the theory of natural selection?
Did you know that Thor was the Norse god of thunder, and that he produced thunder with his hammer, Mjolnir?
Earth and Space Science Concept of the Day
Do you know what this word or phrase means?
Aa
xAa : Hawaiian name for a type of lava flow with a surface that is broken into rough angular fragments which develop during cooling and loss of gas from pahoehoe flows.
Without meaning to, airplanes can cause certain types of clouds to produce snow or rain. When the aircraft climb or descend through mid-level clouds, if the atmospheric conditions are right then the planes...Read more