1st and Goal's Brian Webber and Eric Allen are joined by Chuck Nice and Dr. Eric Goff for the Playing With Science Checkdown. Calvin Ridley's second TD of the day came with some help from Isaac Newton. When he juked Bengals cornerback Dre Kirkpatrick, Ridley was on his way to the end zone while Kirkpatrick was trying to stop his momentum. Matt Ryan fired the pass at about 50 mph, and aimed for a spot 15 yards ahead of Ridley. Perfect timing -- and perfect physics!