Posted by: Matt Stansberry
astronomy, education, Google, Tech Trivia, units, wiki
What is the standard unit for measuring energy?
Secret Word of the Day
This measure of displacement is sometimes used to express the wavelengths of visible light, ultraviolet (UV) light, X rays and gamma rays. What’s the secret word?
An AU is the mean distance between the center of the Earth and the center of the sun. What does AU stand for?