The average human gut is home to perhaps 500 to 1,000 different species of bacteria.
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The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.
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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.
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In 1835 it was discovered that a disease of silkworms known as muscardine could be transferred from one silkworm to another, and was caused by a fungus.
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Thyroid conditions cause a higher risk of fibromyalgia and chronic fatigue syndrome.
The relationship between air temperature and two measures of water vapour saturation of air.
Measurement of Temperature: Instrument Shelters
Temperature Means and Ranges
Change in air temperature at various air flow rates for a 7 pass operation