Dave Gray offers a solid, free Python tutorial that runs for about 9 hours. It’s a pretty methodical course, starting with the basics and moving into more complex stuff like closures and recursion. He ...

Weeklong camps feature topics such as “Junior Doctors,” “Spooky Science” and “Let’s Dive Into the Ocean.” Other subjects include bioengineering, genetics and laboratory safety. Half-day and full-day ...

Hank Green has worn a lot of hats. He’s one half of Vlogbrothers, with his brother, John. He’s written some novels. He’s ...