Did you know?
Pope Sylvester II tried to introduce Arabic numbers into Europe between the years 999 and 1003, but their use did not catch on for a few more centuries, and Roman numerals continued to be the primary number system.
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Green tea is able to stop the scent of garlic or onion from causing bad breath.
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Sperm cells are so tiny that 400 to 500 million (400,000,000–500,000,000) of them fit onto 1 tsp.
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As the western states of America were settled, pioneers often had to drink rancid water from ponds and other sources. This often resulted in chronic diarrhea, causing many cases of dehydration and death that could have been avoided if clean water had been available.
Did you know?
About 600,000 particles of skin are shed every hour by each human. If you live to age 70 years, you have shed 105 pounds of dead skin.
Abiotic factors influence population densities.
Risk Factors for Alzheimer's Disease
Five Factors of Personality and the Traits they Include
The primary factors affecting blood pressure.
Satiety Index of Different Foods Subjects
Expansion factors for venturi flowmeters