Mount Vinson is the eighth-highest mountain in the world.
Olduvai Gorge is a rich archaeological site in Tanzania where evidence of the first humans has been found.
Kelvin is useful in scientific applications because there are no negative numbers. The lowest temperature on the scale is 0 K.
Celsius is a measurement of temperature in which 0 degrees represents the freezing point of water, and 100 degrees represents water’s boiling point.
Fahrenheit is the temperature scale used primarily in the United States. It sets the freezing point of water at 32 and the boiling point at 212.
Temperature is a measurement of how much heat there is in a liquid, solid or gas. Different scales were developed over the years.
Leonardo da Vinci, perhaps most noted as an artist, was also an architect, inventor and chronicler of science, among other outlets for his talents.
The Grand Canyon is a rich, geologic landscape formed over millions of years by a combination of natural forces.
Under certain conditions, ice crystals act as prisms that create patches of light accompanying the sun.
This powerful ocean current helps warm Western Europe, and it was instrumental in the colonization of the Americas.
The basic definition of democracy: rule by the people. But democracies can be defined as parliamentary, Jacksonian, liberal, social and other types.