Chemical reactions are typically unbiased, yielding equal amounts of right- and left-handed molecules. But life requires selectivity: Only right-handed DNA, for example, has the correct twist to inte… [+2417 chars]
When its all done, the full stack of the Space Shuttle launch system will stand 200 feet (61 meters) tall, becoming the
TOKYO As China's economy continues to grow at a slower pace than in recent decades, Chinese businesses and households ar
When Meiklejohn started college at Brown in 2004, she discovered cryptography. This branch of computer science appealed
