Scientists Free Audio & Video

For more than 30 years, Richard P. Feynman's three-volume Lectures on Physics has been known worldwide as the classic resource for students and professionals alike....

Stephen Hawking, Arthur C. Clarke and Carl Sagan (via satellite) discuss the Big Bang theory, God, our existence as well as the possibility of extraterrestrial life.

Carl Sagan, one of the pre-eminent astronomers of our time, talks about his book "The Demon Haunted World: Science as a Candle in the Dark", which explores the country's growing fascination with pseudo-sciences.

Jane Goodall hasn't found the missing link, but she's come closer than nearly anyone else. The primatologist says the only real difference between humans and chimps is our sophisticated language. She urges us to start using it to change the world.

Thomas Huxley, known as “Darwin’s Bulldog” for his championing and development of Darwinism, was perhaps the most important Victorian biologist after Darwin himself.

In this lecture professor Chandak Sengoopta discusses the life of Charles Darwin covering the major events in Darwin's life including his voyage on the HMS Beagle and his eventual publication of On the Origin of Species in 1859.

A two-hour special from the producers of "Making Stuff"

Nobel laureate James Watson opens TED2005 with the frank and funny story of how he and his research partner, Francis Crick, discovered the structure of DNA.

Now, 150 years later and 200 years after Darwins birth, we celebrate the amazingly productive vision and reach of his theory.

Emphasis on chemical fundamentals and applications. Recommended for students needing only one semester of general chemistry.