Forces and Energy. Physik.
Pictures taken by the Hubble Space Telescope. The Hubble Space Telescope was deployed from the Space shuttle Discovery during STS-31 on April 25, 1990.
Since then, there have been 5 servicing missions that continued to upgrade the telescope's scientific instruments and operational systems. Hubble reached a major milestone, its 20th anniversary in orbit, on April 24, 2010. Hubble imagery has both delighted and amazed people around the world and has rewritten astronomy textbooks with its discoveries. Hubble Heritage Gallery of Images. Chandra X-ray Observatory - NASA's flagship X-ray telescope. Out of the ordinary...out of this world.
Index to Physics Demonstration Equipment. Index to Physics Notebooks Back to Physics Demonstrations' Home Page Acceleration A+0+0 "Coin and Feather" fall in an evacuated rotatable tube.
Kernphysik & Kernwaffen. Energyparticlewave Physics. Quantum Physics Online. The Official String Theory Web Site. BERGISCHE UNIVERSITÄT WUPPERTAL.
Feather & Hammer Drop on Moon Video.