Elemental or metallic mercury is a shiny, silver-white metal and is liquid at room temperature. Elemental mercury is used in thermometers, fluorescent bulbs, and certain types of machinery and ...
Expect to see the mercury in the thermometer struggle to get above 30 this weekend as the dry and cold air will set up. The temperatures overnight will be dipping into the single digits overnight with ...
You'll need a digital thermometer and a lubricant to take a rectal temperature. Digital thermometers are more accurate, take less time to get the temperature, and, most importantly, they're not made ...
On Saturday, nature demonstrated how a January day in the District can be above freezing, below average and far from warm. At many hours here all of those things seemed true at the same time. For a ...
The first invention in China in the seventh century was the paper currency. Paper currency is one of China’s most important inventions as paper currency has been adopted worldwide. Usage of paper ...