|
|
The horizontal fraction bar was introduced by the Arabs.
Cucumber slices relieve headaches by tightening blood vessels, reducing blood flow to the area, and relieving pressure.
The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.
A cataract is a clouding of the eyes' natural lens. As we age, some clouding of the lens may occur. The first sign of a cataract is usually blurry vision. Although glasses and other visual aids may at first help a person with cataracts, surgery may become inevitable. Cataract surgery is very successful in restoring vision, and it is the most frequently performed surgery in the United States.
Earwax has antimicrobial properties that reduce the viability of bacteria and fungus in the human ear.