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.
Asked by Ross Hartley. The Helios probes hold the esteemed title of being the fastest satellites in space. They reached a fantastic 253,000 kilometers (157,000 miles) per hour as they raced around the Sun measuring the solar wind and environment near to the Sun. The main reason these probes went so quickly is because their trajectory had them plummet towards the Sun.