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
Celsius 41.11 and Robert Koehler of "Variety" said that the film preached to the choir. Some reviewers said that "Celsius 41.11" felt like a campaign ad for Bush or, possibly, an attack ad against Kerry. Michael Graham of the "National Review" praised "Celsius 41.11" saying that "unlike Michael Moore’s film, "Celsius 41.11" is an actual documentary" and that the film was "far more logical" than "Fahrenheit 9/11". However, Graham also added that "41.11 isn't nearly as emotionally powerful as Moore’s film", a view with which Duane Dudek of the "Milwaukee Journal Sentinel" concurred. Philip Kennicott of the "Washington Post" described Moore's film,