Seeing two lines on a pregnancy test doesn’t necessarily mean you’re pregnant. The second line may be an evaporation line. This line can appear in the results window of a pregnancy test as the urine ...

Evaporation can explain why water levels drop in a full swimming pool, but it also plays an important role in industrial processes ranging from cooling electronics to power generation. Researchers now ...

Evaporation is an endothermic process undertaken by all liquids. This physical state change occurs when surface molecules gain sufficient kinetic energy to overcome the enthalpy of vaporization. Such ...