|
|
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).
Pubic lice (crabs) are usually spread through sexual contact. You cannot catch them by using a public toilet.
Many of the drugs used by neuroscientists are derived from toxic plants and venomous animals (such as snakes, spiders, snails, and puffer fish).
More than 34,000 trademarked medication names and more than 10,000 generic medication names are in use in the United States.
The B-complex vitamins and vitamin C are not stored in the body and must be replaced each day.