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There are more nerve cells in one human brain than there are stars in the Milky Way.

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Although the Roman numeral for the number 4 has always been taught to have been "IV," according to historians, the ancient Romans probably used "IIII" most of the time. This is partially backed up by the fact that early grandfather clocks displayed IIII for the number 4 instead of IV. Early clockmakers apparently thought that the IIII balanced out the VIII (used for the number 8) on the clock face and that it just looked better.

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Your chance of developing a kidney stone is 1 in 10. In recent years, approximately 3.7 million people in the United States were diagnosed with a kidney disease.

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The most destructive flu epidemic of all times in recorded history occurred in 1918, with approximately 20 million deaths worldwide.

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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.

The proportion of adults 55 to 64 in the labor force in Germany, Italy, and France is low and has ... The proportion of adults 55 to 64 in the labor force in Germany, Italy, and France is low and has ...
Checking gasoline for alcohol involves using a graduated cylinder and adding water to check if the ... Checking gasoline for alcohol involves using a graduated cylinder and adding water to check if the ...
Spring force, crankcase pressure, and intake manifold vacuum work together to regulate the flow rate ... Spring force, crankcase pressure, and intake manifold vacuum work together to regulate the flow rate ...
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Determined the magnitude of the magnetic force on the conductor. Determined the magnitude of the magnetic force on the conductor.
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Video: What is Reverse Osmosis?

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