Bureau of Labor Statistics. Overview: The Bureau of Labor Statistics (BLS) is one of eight specialized divisions within the Department of Labor, and a direct descendent of the original Bureau of Labor, Department of the Interior, established in 1884. (Todayâs Department of Labor was established as a cabinet-level agency in 1913).
Pour a glass of water and watch it turn to ice instantly! This step-by-step tutorial will show you everything you need to know about Instant Ice. http://www.thekingofrandom.com.
For example, on a hot summer's day if you sprinkle water on your skin it will cool your skin as you evaporate. That's an example of refrigeration! Water can't be used in freezer though, because it evaporates at too high a temperature. But some liquids evaporate at very low temperatures. For example Isobutane (becoming more common in domestic freezers) evaporates at very low temperatures.