|
|
Did you know?
Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.
Did you know?
The human body produces and destroys 15 million blood cells every second.
Did you know?
In 1844, Charles Goodyear obtained the first patent for a rubber condom.
Did you know?
When Gabriel Fahrenheit invented the first mercury thermometer, he called "zero degrees" the lowest temperature he was able to attain with a mixture of ice and salt. For the upper point of his scale, he used 96°, which he measured as normal human body temperature (we know it to be 98.6° today because of more accurate thermometers).
Did you know?
If all the neurons in the human body were lined up, they would stretch more than 600 miles.