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?
Shadow zone
xShadow zone : The shadow zone is the area of the earth from angular distances of 104 to 140 degrees from a given earthquake that does not receive any direct P waves. The shadow zone results from S waves being stopped entirely by the liquid core and P waves being b
Scientists have been taking a close look at special types of bacteria that live in the ocean. These microbes may be tiny, but they play a big part in the nitrogen cycle. The little round bacteria are able...Read more