To return to Earth, the astronaunts aboard Apollo 13 used the moon to slingshot them back to Earth. The spacecraft had a total mass 68,000 kg (including the 1998 kg of fuel and the 3 astronaunts) and was capable of producing 689 kN of thrust. Using this information, determine how long it would...
I was interested in Johnny Lee's head tracking system, and so decided to build upon his idea. I have come to understand, that it will only work for one person. Is there a way to use a webcam, mounted to the front of video goggles to se a glyph (an a printed object viewable by a computer) and...