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.
A cheetah moving at top speed can cover over 20 feet in a single stride. Like cleats on a track shoe, the cheetahâs long claws help them grip the ground as they run. Unlike those of other cats, the claws of a cheetah are always extended. In fact, cheetahs are the only cats that canât fully retract their claws.