With the 20th anniversary of his show (September 10) just in the rear-view mirror, here are 10 of fictional Not That Bad Records' greatest hits from the not-actually-real album "Soundtrack of Science."... READ ON

So let's say it's 1947, you're the War Assets Administration, and you've got 30,000 pounds of spare metallic sodium from WWII on your hands. It's too dangerous to transport -- anyone who has taken high school Chemistry knows what happens if this stuff gets wet -- so no commercial railway or trucking company will agree to transport it. So you decide to toss it into the fish-free, frozen-over Lake Lenore and film the results. "A once-lethal war chemical becomes a peacetime pyrotechnic display!" Indeed.... READ ON

It's here -- the mental_floss interview with the MythBusters, featuring your questions! (Also here: a new season of the show, starting tonight: Wednesday, October 6! Set your DVRs -- the new season premieres at 9pm. Also check out Kari Byron's new show Head Rush, a commercial-free hour of experiments on the Science Channel every weekday at 4pm.) For this interview, I combed through over a hundred viewer questions. I selected the best, threw in a few of my own for good measure, and sent them off to... READ ON

So let's say you've got a high-energy magnetic field. You could do a lot with it -- erase a hard drive, stick some fridge magnets to it, dramatically conclude the fifth season of Lost (ahem) -- but no, researchers in the Netherlands used their terrifying magnetic power to levitate a frog in mid-air. Here it is: A NewScientist article explains: The levitation trick works because giant magnetic fields slightly distort the orbits of electrons in the frog's atoms. The resulting electric current... READ ON