|
|
Did you know?
In 1844, Charles Goodyear obtained the first patent for a rubber condom.
Did you know?
Parkinson's disease is both chronic and progressive. This means that it persists over a long period of time and that its symptoms grow worse over time.
Did you know?
The average human gut is home to perhaps 500 to 1,000 different species of bacteria.
Did you know?
The horizontal fraction bar was introduced by the Arabs.
Did you know?
There are actually 60 minerals, 16 vitamins, 12 essential amino acids, and three essential fatty acids that your body needs every day.