Do you know why volcanic ash is a problem for air travelers?
Earth and Space Science Concept of the Day
Do you know what this word or phrase means?
P-wave
xP-wave : A compressional wave (or pressure wave) in the Earth's surface that shakes the ground back and forth in the same direction and the opposite direction as the direction the wave is moving
Current observational tools cannot account for roughly half of the heat that is believed to have built up on Earth in recent years, according to a "Perspectives" article in this week's issue of the journal...Read more