In 1844, Charles Goodyear obtained the first patent for a rubber condom.
Did you know?
Asthma attacks and symptoms usually get started by specific triggers (such as viruses, allergies, gases, and air particles). You should talk to your doctor about these triggers and find ways to avoid or get rid of them.
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The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.
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There are 60,000 miles of blood vessels in every adult human.
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More than 34,000 trademarked medication names and more than 10,000 generic medication names are in use in the United States.
Punnett square illustrating the genotypes underlying a 9 : 3 : 3 : 1 ratio
The Inverse-Square Law
The Punnett square demonstrates how the F2 ratio arises from an F1 x F1 cross.
How to shift and reflect a square root function using transformations