More Science Trivia
Polaris. Polaris is the brightest star in the constellation Ursa Minor.
Drowned River Valley. An estuary combines fresh water and water from the sea.
Planet. The planet formerly known as "Pluto" was named for the Roman god of the underworld.
Footcandle. One foot-candle is equal to 10.76391 lux.
Environmental Protection. Pollution in China has made cancer a leading cause of death in 30 cities and 78 counties.
Eratosthenes. Eratosthenes used geometry, trigonometry, and a well in Alexandria, Egypt, to calculate the earth's diameter.