Who doesn't want to fling a pumpkin in to the sky at an absurd speed? The Science Channel, well aware of this past-time, is ringing in Thanksgiving with a two-hour special called "Punkin Chunkin" based on the annual competition where over 100 engineering teams work to hurl a pumpkin as far as possible. Kari Byron, … Continue reading The science behind punkin chunkin – Discovery's Kari Byron explains