When asphalt pavement cracks, a squiggle of black sealant can help prevent further damage. Learn more in this episode of BrainStuff, based on this article: https://auto.howstuffworks.com/road-tar-squiggle-drizzle.htm

How Did the Penn Center Become a Civil Rights Sanctuary?
09:53

BrainStuff Classics: Why Is Cramming the Worst Way to Study?
05:55

How Can We Separate Ninja Fact from Ninja Fiction?
07:38