Technology Review’s bloggers are working overtime. Now Simson Garfinkel has blogged on a site called “Ed-Heads” that features three virtual activities for all you guys and gals out there: Simple Machines, Weather, and Knee Surgery. Yes, knee surgery. There’s a virtual reception area, a virtual surgery, and a lovely set of full color photographs that are guaranteed to weaken your, um, knees. Luckily, the teacher’s guide warns that “some of the photographs and procedures in this knee surgery activity are rather graphic.” Ra-ther!

Just the thing for that restive third-grader.

Further learning occurs. On the Ed-Head home page, I see that humans “share 98.4% of their DNA with a chimp” (I knew that already), but we also share 70% of our DNA with a slug. Now I understand what Mondays are all about.