Did
you know that early Chinese believed that there were ten
suns that appeared each day in the sky during the ten-day Chinese week?
Do you know what theorem Pythagoras is famous for?
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
The sun goes through cycles that last approximately 11 years. These solar cycle include phases with more magnetic activity, sunspots, and solar flares. They also include phases with less activity. The...Read more