In 1844, Charles Goodyear obtained the first patent for a rubber condom.
Did you know?
Your heart beats over 36 million times a year.
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People about to have surgery must tell their health care providers about all supplements they take.
Did you know?
Most women experience menopause in their 50s. However, in 1994, an Italian woman gave birth to a baby boy when she was 61 years old.
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Throughout history, plants containing cardiac steroids have been used as heart drugs and as poisons (e.g., in arrows used in combat), emetics, and diuretics.
An example of sodium balance achieved by the coordinated actions of three hormones.
Heliospheric-current-sheet
Gram Positive Testing
How to find two positive angles less than 360° that have a tangent of −2.25
Energy Use by Different Country Groups
Effect of an Increase in R&D in the Follower Country on the Steady State