1. The Sins of PowerPoint. For the love of God, send this to all your business associates.

2. How to maintain classroom discipline ... 1950s style.

3. Folks who do pot gardening are probably familiar with hydrogel crystals, which absorb water (and so can release it slowly into the soil). Some Italian researchers are working on a diet hydrogel pill -- swallow with watter, and it swells up in your stomach and makes you feel full. Yeah, it's not "diet and exercise," but I could see it being handy for some people (or before a large, tempting dinner).

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That classroom discipline video was actually not too bad. The class clowns always played on the teacher's insecurities, and a secure teacher could always defuse our pranks while winning cooperation and classroom attention. Uh, I mean their pranks.

Actually, your point is well taken. It was just very ... charmingly done ... :-)