Episode: How Does Captain America's Shield Work?

The US tax system is notoriously complex, but where did it come from? How did it end up this way, and what sort of alternatives have people proposed? Join Ben Bowlin to learn more about the bizarre evolution of taxes.

At first, it sounds crazy - wouldn't hot water take longer to freeze? Weirdly enough, the opposite is true. Join Lauren to learn more about a mystery that's puzzled humanity for centuries in this episode of BrainStuff.

Sure, rearview mirrors are cool - but how do they actually work? How can the same piece of glass have two different amounts of reflection? Join Josh as he explains the science behind these handy devices.