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Did you know?
In 1844, Charles Goodyear obtained the first patent for a rubber condom.
Did you know?
People who have myopia, or nearsightedness, are not able to see objects at a distance but only up close. It occurs when the cornea is either curved too steeply, the eye is too long, or both. This condition is progressive and worsens with time. More than 100 million people in the United States are nearsighted, but only 20% of those are born with the condition. Diet, eye exercise, drug therapy, and corrective lenses can all help manage nearsightedness.
Did you know?
The average adult has about 21 square feet of skin.
Did you know?
On average, the stomach produces 2 L of hydrochloric acid per day.
Did you know?
Everyone has one nostril that is larger than the other.