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
BrainStuff
2,436 clip(s)
Did the Maya Civilization Fall Because of Climate Change?
BrainStuff Classics: What's the History of Nail Polish?
BrainStuff Classics: Do Dogs Get Embarrassed When We Put Them in Costumes?