Millions of Americans are addicted to alcohol and drugs, and many of them end up unemployed, broken away from their families and homeless. We talk to a psychologist about the causes of addiction, and why some people are more likely to fall to it than others, and find out how an author who is battling alcohol and drug addiction made his journey to sobriety, and the lessons he learned on the way.
The history of physics is a long and extremely interesting one, littered with the names of some of the most famous scientists in the world, like Galileo, Newton, Copernicus, Einstein, Curie, and others. It is also the story of great discoveries that changed cultures, religious beliefs and politics over the centuries. We talk to a science historian about a few of the highlights throughout the long history of physics and astronomy.