Joao Magueijo has been stirring things up in Physics with his book, “Faster Than the Speed of Light.” He posits that the speed of light can vary.
Intelligent. Optimistic. Curious.
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Harriet Tubman will soon be gracing our twenty dollar bill. Most of us know only one image of her. It's an iconic image taken later in her life in which her hair's covered in a dark cloth and she has a stern expression. But there are other images of Harriet Tubman as well, including a wood cut of her carrying a musket.
Law professor Nicholas Johnson says the image of Harriet Tubman carrying a rifle doesn’t fit with how most Americans view abolitionists and civil rights leaders. After all, weren’t they supposed to be peaceful? But as Johnson tells Steve Paulson, there's a rich tradition of Black Americans owning guns for self-defense.
Got World Cup fever? Here's Roger Kittleson on how Brazilian politics, culture and passion is wrapped up in soccer.
Shark researcher John Musick tells Steve Paulson what makes sharks unique and why people should get out of the water at 5 o’clock.
How did non-life become life? University of Wisconsin geochemist Nita Sahai talks with Anne Strainchamps about how life might have begun on Earth.
Patricia O’Connor tells Jim Fleming there’s nothing wrong with splitting an infinitive and that people should stop trying to make English behave like Latin.
Jan Harold Brunvand reviews some of his favorite urban legends for Steve Paulson and explains that they always happened to a friend of a friend.
Henrietta Lacks was a poor, African American woman who died of cervical cancer at the age of 31...
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