Fluorescent Light Fact
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.
More Science Facts
The seeds of an Indian Lotus tree remain viable for 300 to 400 years.
Boron nitride (BN) is the second hardest substance known to man.
Scientists have discovered that copper pollution of the atmosphere occurred about 2500 years ago. This was discovered by analyzing ice cores from Greenland. The pollution was attributed to the Romans who used copper for military purposes and to produce coins.