Providing Support for PBS.org Learn Moreabout PBS online sponsorship Open in new tab Hi, I'm Carrie Anne and welcome to Crash Course Computer Science.

Open in new tab Hi, I'm Carrie Anne and welcome to Crash Course Computer Science. Over the last few episodes, We've talked a lot about the mechanics of how computers work.

This week on Crash Course: History of the Scientific Revolution—astronomical anomalies accrued. Meanwhile, in Denmark—an eccentric rich dude constructed not one but two science castles!