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
Nives Celsius Nives Celsius Nives Zeljković (; born 18 December 1981), known by her stage name Nives Celzijus (Nives Celsius), is a Croatian model, singer, writer and most recently a TV actress. She is a current columnist for German "Bild" magazine and the ex-wife of the football player Dino Drpić. Nives was born in Zagreb, at the time part of Yugoslavia. Her biological, estranged, father Spaso Čanković (known as Anej Sam) was born in Sanski Most, Bosnia and Herzegovina and works as a writer in Slovenia. Her mother is named Mira. Her parents separated prior to her birth. During the Croatian War,