Diabetes is the fourth leading cause of death in the U.S., accounting for about 180,000 deaths per year.

The number Pi (the ratio of the circumference to the diameter of a circle) can't be expressed as a fraction, this means it is an irrational number. When written as a decimal it never repeats and never ends.

Bullet proof vests, fire escapes, windshield wipers and laser printers were all invented by women.

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