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Did you know?
The average adult has about 21 square feet of skin.
Did you know?
Though the United States has largely rejected the metric system, it is used for currency, as in 100 pennies = 1 dollar. Previously, the British currency system was used, with measurements such as 12 pence to the shilling, and 20 shillings to the pound.
Did you know?
Illicit drug use costs the United States approximately $181 billion every year.
Did you know?
In 1864, the first barbiturate (barbituric acid) was synthesized.
Did you know?
The most common childhood diseases include croup, chickenpox, ear infections, flu, pneumonia, ringworm, respiratory syncytial virus, scabies, head lice, and asthma.