This website provides observational information about the visible planets, our moon and other moons, the sun, and other celestial objects. Monthly star maps and animations that show celestial motions are provided. The...

Created as part of a collaborative effort by such organizations as the National Science Foundation and the American Association of Physics Teachers, the Physical Sciences Resource Center (PSRC) serves as a clearinghouse...

This video demonstrates that a person can stand on a bed of nails without hurting their feet due to the force being spread out over a large area. It is part of a collection of typical lecture demonstration videos put...