Anders Celsius magnitude (a measure of brightness) of certain stars. This was the first attempt to measure the intensity of starlight with a tool other than the human eye. He made observations of eclipses and various astronomical objects and published catalogues of carefully determined magnitudes for some 300 stars using his own photometric system (mean error=0.4 mag). Celsius was the first to perform and publish careful experiments aiming at the definition of an international temperature scale on scientific grounds. In his Swedish paper "Observations of two persistent degrees on a thermometer" he reports on experiments to check that the freezing point is
Anders Behring Breivik she hired a lawyer to prevent Christensen from publishing the book. The book was nevertheless published in October 2013, and was widely criticized; on the basis of Wenche Behring Breivik's opposition to the book, for inclusion of material not relevant to understanding what motivated Anders Behring Breivik, and for character assassinations of still living people. Anders Behring Breivik Anders Behring Breivik (; since 2017 legally Fjotolf Hansen, also known by his pseudonym Andrew Berwick), born 13 February 1979, is a Norwegian far-right terrorist who committed the 2011 Norway attacks. On 22 July 2011, he killed eight people by detonating a