Americans have many questions — and misconceptions — about the deadly virus that's rapidly spreading in West Africa. We asked two scientists to explain more about how Ebola is transmitted.

In this mesmerizing DIY tutorial, learn how to create a hyper-realistic water drop using clear resin, a stunning art project that looks like nature frozen in time. With just a few simple materials ...

Water vapor in the air condenses into liquid water as the temperature drops. This is where we get the phrase "dew point" which we use a lot to communicate how humid the air feels.

The water evaporates in the heat, creating a cooling effect that can reportedly drop the interior temperature by up to 20 °F (11 °C) as compared to the outside temperature.