Olof Celsius Olof Celsius was made a member of the Royal Swedish Academy of Sciences in 1739. Olof Celsius Olof Celsius (the elder) (19 July 1670 – 24 June 1756) was a Swedish botanist, philologist and clergyman, He was a professor at Uppsala University, Sweden. Celsius was a mentor of the botanist and scientist Carl Linnaeus. Celsius wrote his most famous book on biblical plants, "Hierobotanicon", in 1745-47. Olof Celsius's nephew Anders Celsius was an astronomer who invented a temperature scale where 100 represented the freezing point of water and 0 represented the boiling point. Jean-Pierre Christin, in 1744 reversed the scale
Homologous temperature values for tensile strength, shear strength and modulus of elasticity. Copper, on the other hand, has a much higher melting point, so foils are working at only 0.16T to 0.29T and their properties are little affected by temperature. Homologous temperature Homologous temperature expresses the temperature of a material as a fraction of its melting point temperature using the Kelvin scale: formula_1 For example, the homologous temperature of lead at room temperature (25 °C) is approximately 0.50 (T = T/T = 298 K/601 K = 0.50). The homologous temperature of a substance is useful for determining the rate of steady state