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Fluorescent Light Fact

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.




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Seeds of an Indian Lotus tree

The seeds of an Indian Lotus tree remain viable for 300 to 400 years.

Second hardest substance

Boron nitride (BN) is the second hardest substance known to man.

Copper pollution

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.

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