The horizontal fraction bar was introduced by the Arabs.
Did you know?
Chronic necrotizing aspergillosis has a slowly progressive process that, unlike invasive aspergillosis, does not spread to other organ systems or the blood vessels. It most often affects middle-aged and elderly individuals, spreading to surrounding tissue in the lungs. The disease often does not respond to conventionally successful treatments, and requires individualized therapies in order to keep it from becoming life-threatening.
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The human body produces and destroys 15 million blood cells every second.
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About 3% of all pregnant women will give birth to twins, which is an increase in rate of nearly 60% since the early 1980s.
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Pubic lice (crabs) are usually spread through sexual contact. You cannot catch them by using a public toilet.
