Journal of Epidemiology and Public Health > 자유게시판

Franklin noted that soon as soon as they overcame the freezing point of water 0 °c (32°f), the air https://500px.com/p/nevigi9689 a thin film of ice formed on the surface of the thermometer bulb, and what the ice mass was about six mm thick (1/4 inch) when they stopped the experiment. it reaches -14 °C (7 °F).