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Did you know?
More than 20 million Americans cite use of marijuana within the past 30 days, according to the National Survey on Drug Use and Health (NSDUH). More than 8 million admit to using it almost every day.
Did you know?
The horizontal fraction bar was introduced by the Arabs.
Did you know?
The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.
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Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.
Did you know?
Ether was used widely for surgeries but became less popular because of its flammability and its tendency to cause vomiting. In England, it was quickly replaced by chloroform, but this agent caused many deaths and lost popularity.