Who Was Karl Marx, and What Were His Philosop...

The @ sign goes by many names today, but it's only so commonplace because of medieval merchants and one 1970s programmer. Learn more about the at sign (or arroba, Klammeraffe, strudel, grisehale, or gül) in this episode of BrainStuff, based on this article: https://people.howstuf ...  Show more

A human fetus doesn't develop retinas until around gestational week 28. Learn how researchers have tried to figure out what babies can see in the few remaining weeks before they're born in this classic episode of BrainStuff, based on this article: https://health.howstuffworks.com ...  Show more

Melvyn Bragg and guests discuss Karl Marx. "Workers of the World Unite! You have nothing to lose but your chains", "Religion is the opium of the people", and "From each according to his abilities, to each according to his needs". That should be enough for most of you to work out ...  Show more

Carl Sagan was the world's first mainstream media super scientist, capapble of breaking down complex ideas for the common folk. But what made him tick? Billions and billions of great ideas. Explore his life and legacy with Josh and Chuck in this classic episode.

Everybody knows that cosmologist Stephen Hawking has an enormous brain, but did you also know he has an equal wit? Learn about some of the lesser-known details about the celebrated physicist in this episode.

Carl Sagan was the world's first mainstream media super scientist, capapble of breaking down complex ideas for the common folk. But what made him tick? Billions and billions of great ideas.