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.
The dwarf planet Haumea is one of the largest known members of the Kuiper belt, which consists of numerous icy objects orbiting the Sun from beyond the outer planets. Haumea is very unusual. It spins on its axis much faster than any other large celestial object, competing one rotation in just under four hours.