Roentgen (unit) absorbed dose in a wide range of matter. When measuring absorbed dose in a human due to external exposure, the SI unit the gray, or the related non-SI rad are used. From these can be developed the dose equivalents to consider biological effects from differing radiation types and target materials. These are equivalent dose, and effective dose for which the SI unit sievert or the non-SI rem are used. The following table shows radiation quantities in SI and non-SI units: Roentgen (unit) The roentgen or röntgen () (symbol R) is a legacy unit of measurement for the exposure of X-rays
Nordic Society for Invention and Discovery 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 Hammarby IF. A small prototype that can lift small animals (2.4 kg) a few centimetres (up