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Author Question: A backhoe can dig 150 feet of trench per hour and costs $500 per hour to hire and operate. A ditch ... (Read 59 times) |
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Your heart beats over 36 million times a year.
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Since 1988, the CDC has reported a 99% reduction in bacterial meningitis caused by Haemophilus influenzae, due to the introduction of the vaccine against it.
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In 2012, nearly 24 milliion Americans, aged 12 and older, had abused an illicit drug, according to the National Institute on Drug Abuse (NIDA).
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There are 60,000 miles of blood vessels in every adult human.
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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.