If you're lost in the wilderness and it feels like you're walking in circles, guess what? You probably are! In fact, according to a recent study, walking in a straight line is harder than you might think. During the study, researchers blindfolded participants and told them to try their hardest to walk straight. Without being able to see, though, the subjects of the study walked in surprisingly tight circles. How tight? Less than 66 feet in diameter. Whoa! The researchers