Ask unlimited questions for free
Cyanide works by making the human body unable to use oxygen.
After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.
On average, the stomach produces 2 L of hydrochloric acid per day.
There are 20 feet of blood vessels in each square inch of human skin.
Urine turns bright yellow if larger than normal amounts of certain substances are consumed; one of these substances is asparagus.
For a complete list of videos, visit our video library