The ruler length and width measurements reflected the largest bias, regardless of wound shape [8]. The standard error of measurement (SEM) is defined as the difference between an observed score and a true score, so the SEM is an indication of the imprecision of a measurement technique [17].
Washington: Runaway planets zipping through space at mind-numbing speeds of 30 million miles per hour are now the fastest objects in the universe, says a study. Seven years ago, the discovery of the first runaway star, shooting out of our Galaxy at a staggering speed of 1.5 million mph, set astronomers on a course of exploration.
Cheetah beaten to title of fastest animal in the world by tiny Californian mite. You may think a cheetah would be hard to beat, but researchers have found that, for its size, a tiny California beetle is actually the fastest animal ever found. Paratarsotomus macropalpis is no bigger than a sesame seed - however, it was recently recorded running at up to 322 body lengths per second.