Death is one of life's very few absolute certainties. But while the bell eventually tolls for everyone, some of us get a little something extra up front. This week, Josh gives you the low down on the harbinger of mortality known as the death rattle.
In 1846 Vienna, childbed fever caused death among many pregnant patients. Consequently, Dr. Ignaz Semmelweis began an experiment where his doctors washed their hands. Learn more about this experiment on the Science Channel's "100 Greatest Discoveries."
After being pulled out of his home by a tornado, a man lands in a nearby field with no significant injuries. The strength of his bones protected him. Bones' resiliency is discussed in this Discovery Channel video.
German physicist Wilhelm Roentgen accidentally stumbled on this world altering technology. X-Rays had radiation capabilities then unknown to scientists. Learn more in the Science Channel's "100 Greatest Discoveries."
English physician William Harvey's studies on blood flow were breakthroughs in understanding the human heart and the circulatory system. Learn more about blood flow on the Science Channel's "100 Greatest Discoveries."
Before Friedrich Wöhler created urea, scientists believed that organic substances were unable to combine with inorganic substances. Learn more about the discovery of urea on the Science Channel's "100 Greatest Discoveries."
Shortly before leaving to go on a zero-gravity flight, physicist Stephen Hawking spoke with reporter Irene Klotz. Learn how Mr. Hawking, who has ALS (Lou Gehrig's Disease), uses his eyes to speak through a computer in this video.