Who created these huge, mysterious wheel patterns in the Mideast…

Called geoglyphs, these strange circular patterns etched into the rocky sands from Saudi Arabia to Syria have no known meaning or origin. Though archaeologists say they likely date back over 2,000 years, there are no records of who made them, nor why they would make such elaborate patterns that can only be… » 9/15/11 2:46pm 9/15/11 2:46pm

How wheels go at three different speeds simultaneously

Some sciences prove that everything you know is wrong. Physics doesn't. It just proves that everything you know is relative. A good example of this is the motion of the wheel. Although it was one of humankind's earliest machines, it still has some tricks up its sleeve. » 7/07/11 8:30am 7/07/11 8:30am