Albert Einstein spent his last thirty years unsuccessfully searching for a ‘unified theory’ — a single master principle to describe everything in the universe, from tiny subatomic particles to immense clusters of galaxies. In the decades since, generations of researchers have continued working toward Einstein’s dream.

This program, Ending the Epidemic: Science Advances on AIDS, brings together leading researchers on the forefront of scientific efforts to understand and attack the virus that causes AIDS. Moderator Richard …

With ever more refined techniques for measuring complex brain activity, scientists are challenging the understanding of thought, memory and emotion–what we have traditionally called “the self.”

In this highly entertaining performance combining math with magic, Arthur Benjamin—aka, the the “Mathemagician”—displays amazing feats of mental mathematical gymnastics and explains the secrets behind his lightning-fast math skills. How does the Mathemagician best an electronic calculator?

It’s the thought of your childhood home. It’s that comforting aroma you can still smell ten years later. It’s the way you define yourself. It’s your memory. Where is memory stored? How do we recall? Why do we forget?

See how engineer and art historian Maurizio Seracini uses his pioneering multispectral imaging techniques and other tools to uncover the long-hidden stories behind masterpiece paintings. Episode filmed live at the …