Tooele Transcript Bulletin | 1923-11-09 | Page 8 | Changing Color with Heat

changing color with heat members ot of the physical society la in london were interested at aracen a recent t meeting by an exhibition of specimens of paint which change their colbraith variations of the temperature one af pf of these paints la Is re red jd at I 1 pera tures but turns black in a few se seconds condo when warmed tn of a toye stove or heated to degrees fahrenheit Az adother oilier paint la Is yellow until heated to a temperature of degrees when it becomes become s dark rid red ibey are ire cabil baue hea eat indic abing but jie are utu more th tan