The intensity of heat as measured in degrees Fahrenheit or degrees Centigrade, also known as Celsius. (Chart for temperature conversions between Fahrenheit and Centigrade)The regulation of the temperature of environments where artworks are made, exhibited, and stored is important in their conservation. Temperature is significant because it affects relative humidity. When moist air is heated, the relative humidity decreases; when it is cooled, the relative humidity increases. Temperature is also important because deterioration progresses much more quickly at higher temperatures than at lower ones. Exposure to heat can drastically accelerate the aging of organic materials and of many modern synthetics.Controlling the temperature of various materials is important in the techniques used to manipulate them.Temperatures of particular importance: platinum melts at 1772? C. iron melts at 1535? C. nickel melts at 1453? C. manganese melts at 1244? C. copper melts at 1083? C. gold melts at 1063? C. silver melts at 960.8? C. zinc melts at 419.4? C. lead melts at 327.5? C. tin melts at 231.89? C. water boils at 212? F., 100? C. normal body temperature for humans is 98.6? F., 37? C. freezing point of water is 32? F., 0? C. The temperatures of colors are often described as warm (purples, reds, oranges, and yellows), neutral (violets and greens), and cool (blue-greens and blues). The color temperature of light sources is usually measured in units kelvin (K).About a thermometer: A nurse with a thermometer behind her ear says, "Wait till I find the asshole who's got my pencil."Also see alloy, climate control, flammable, hot glue, hot glue gun, hygrothermograph, lost-wax casting, measurement, metal, pyrometric cones (firing ceramics), science and art, and temperature conversions between Fahrenheit and Centigrade.