Scientists Free Audio & Video

In tough economic times, our exploratory science programs -- from space probes to the LHC -- are first to suffer budget cuts. Brian Cox explains how curiosity-driven science pays for itself, powering innovation and a profound appreciation of our existence.

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.

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.

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.

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

Walter Isaacson, author of the mega-selling, acclaimed biography of Benjamin Franklin, discusses his latest work focused on the most influential scientist of the 20th century, Albert Einstein.

The book, also known as Darwin's Journal of Researches, is a vivid and exciting travel memoir as well as a detailed scientific field journal covering biology, geology, and anthropology that demonstrates Darwin's keen powers of observation, written at a time when Western Europeans were still discovering and exploring much of the rest of the world.

Oliver Sacks was born in 1933 in London, England (both of his parents were physicians) and earned his medical degree at Queen's College, Oxford.

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.