I was driving home from work today, and a helicopter was flying overhead. How did I know this? I didn’t hear it as I was listening to my iPod through my awesome car stereo system. I didn’t see it above me because my sun roof was closed. (All that bright summer sunlight makes me sneeze! I know, I’m weird.)
I knew it because, on the interstate in front of me was the shadow of the helicopter flying down the road just in front of my car. You could even see the shadow of the blades spinning. I followed the shadow for about a mile. (At my rate of speed that was just a few seconds–[wink].) I have seen shadows of planes or jets cross over the road near me, but never before have I actually followed a shadow. You should try it sometime.