Two years ago, software engineer and tinkerer Gever Tulley told us five dangerous things you should let your kids do. He returned in 2009 to give us an update about Tinkering School, his part-lab-part-summer-camp where kids use power tools to create amazing things … like roller coasters!

We’ll be posting Gever’s new talk soon — but he’d like you to go ahead and check out this webcomic version of his 2009 talk. Click the image below to open it in a new window, and use the buttons at the bottom to leaf through:

Or, download the Tinkering School comic [PDF] >>