Fun Science Facts

It is energy-efficient to turn off a fluorescent light only if it will not be used again within an hour or more. This is because of the high voltage needed to turn it on, and the shortened life this high voltage causes.

The Earth's equatorial circumference (40,075 km) is greater than its polar circumference (40,008 km).

Lake Baikal is the deepest lake in the world.

Due to gravitational effects, you weigh slightly less when the moon is directly overhead.