Roentgen equivalent man has been defined since 1976 as equal to 0.01 sievert, which is the more commonly used SI unit outside the United States. A number of earlier definitions going back to 1945 were derived from the roentgen unit, which was named after Wilhelm Röntgen, a German scientist who discovered X-rays. The acronym is now a misleading historical artifact, since 1 roentgen actually deposits about 0.96 rem in soft biological tissue, when all weighting factors equal unity. Older units of rem following other definitions are up to 17% smaller than the modern rem. One rem carries with it a 0.05% chance of
Nordic Society for Invention and Discovery to 7 cm) above the ground. The levitation is provided by six pairs of neodymium magnets. Nordic Society for Invention and Discovery Nordic Society for Invention and Discovery is a Scandinavian invention lab, founded in 2013 by Per Cromwell and Tomas Mazetti. No More Woof is a device aiming to translate dogs thoughts into human language using electroencephalography sensoring. An experimental hockey puck inspired by the forms of the Finnish architect Alvar Aalto , researching what happens if the hockey puck isn't round. It's designed with the goal to maximize randomness and have been tested by hockey teams as Swedish