In 1961, the USSR set off a 57-megaton atomic bomb, nicknamed the Tsar Bomba. It's still by far the most powerful nuclear weapon ever built. Learn how its test changed history in today's episode of BrainStuff, based on this article: https://science.howstuffworks.com/tsar-bomba.htm

How Do Red-Tailed Hawks Work?
09:24

How Does Ketchup Work?
11:37

BrainStuff Classics: How Can You Help a Friend with Depression?
06:59