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The modern decimal position system was the invention of the Hindus (around 800 AD), involving the placing of numerals to indicate their value (units, tens, hundreds, and so on).
Pink eye is a term that refers to conjunctivitis, which is inflammation of the thin, clear membrane (conjunctiva) over the white part of the eye (sclera). It may be triggered by a virus, bacteria, or foreign body in the eye. Antibiotic eye drops alleviate bacterial conjunctivitis, and antihistamine allergy pills or eye drops help control allergic conjunctivitis symptoms.
Urine turns bright yellow if larger than normal amounts of certain substances are consumed; one of these substances is asparagus.
On average, someone in the United States has a stroke about every 40 seconds. This is about 795,000 people per year.
There are more bacteria in your mouth than there are people in the world.