This interesting tutorial delves into a couple of different techniques for making holograms using your computer. There's even an associated java program that can help you through the process
Creating a hologram is both fun and educational. There are quite a few good sites for learning about holography or purchasing supplies. As an alternative to the photochemistry and vibration-free settings involved with regular holography, this program allows you to create a transmission hologram using just a computer, a laser-printer, and an overhead transparency. This hologram will behave like one created using a laser and can be projected or viewed with a point source.
A Chinese rocket carrying a probe destined for the Moon has blasted into space. A Long March 3C rocket with the Chang'e-2 probe took off from Xichang launch centre at about 1100 GMT. The rocket will shoot the craft into the trans-lunar orbit, after which the satellite is expected to reach the Moon in about five days. Chang'e-2 will be used to test key technologies and collect data for future landings. The latest launch, to test key technologies and gather data, is China's second lunar mission. China says it will send a rover on its next mission, and it also has ambitions to put humans on the surface of the lunar body at some future date.
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