Reviewed By Laura J. Martin, MD. May 28, 2010 (New Orleans) -- If your child insists his positive drug test results are a mistake, there's a chance he could be telling the truth. Drug tests generally produce false-positive results in 5% to 10% of cases and false negatives in 10% to 15% of cases, new research shows.
According to Fox News, MITâs cheetah robot can now jump over obstacles up to 18 inches tall, which is more than half the robotâs height. âOur goal is to use this kind of robot to save lives in a disaster situation,â explains Professor Sangbae Kim.
With long legs, loose hip joints, and a flexible spine, cheetahs have the ability to cover up to 25 feet in one stride. Their muscular legs mainly consists of fast twitch fibers to contract much faster than normal, while their wide nostrils and lungs provide more oxygen for sprints.