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.
Cheetahs are relatively small cats that weigh between 85 and 140 pounds. With their slim build that is designed for speed, they do not have size on their side when it comes to protecting their kill from other predators. As a result, ranchers can also keep a wary cheetah away from their herd with the use of guard dogs, and even donkeys, which are capable of scaring away the largest of cheetahs.