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Did you know?
The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.
Did you know?
As many as 20% of Americans have been infected by the fungus known as Histoplasmosis. While most people are asymptomatic or only have slight symptoms, infection can progress to a rapid and potentially fatal superinfection.
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Each year in the United States, there are approximately six million pregnancies. This means that at any one time, about 4% of women in the United States are pregnant.
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Russia has the highest death rate from cardiovascular disease followed by the Ukraine, Romania, Hungary, and Poland.
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When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.
The 2012 U.S. presidential campaign rang with “get tough” cries to end Iran’s nuclear capacity and c
These illustrations show Ellen Craft, a slave with and without a disguise. She dressed “as a disting
Many former slaves understood that illiteracy was an implement of bondage. The Freedmen’s Bureau bui


