|
|
Did you know?
More than 2,500 barbiturates have been synthesized. At the height of their popularity, about 50 were marketed for human use.
Did you know?
The horizontal fraction bar was introduced by the Arabs.
Did you know?
If you could remove all of your skin, it would weigh up to 5 pounds.
Did you know?
Vaccines prevent between 2.5 and 4 million deaths every year.
Did you know?
Of the estimated 2 million heroin users in the United States, 600,000–800,000 are considered hardcore addicts. Heroin addiction is considered to be one of the hardest addictions to recover from.