Hand-rodynamic

Ever recall that instant where you are cruising along a seemingly endless, meandering road, with the windows down so you can smell and taste the air through which you ride, and then all of a sudden, you decide to form your hand into some sort of an imaginary aircraft
You fix your eyes on your palm, then stick you hand out into the wind and watch your palm react to each tilt and twist of your wrist as it ploughs into the approaching wind? You tilt up, and your whole arm seems to follow, tilt down and you feel you'd almost touch the ground. And it goes on for the longest time...and it fascinates you doesn't it? Our old friend from Basel, Herr Bernoulli comes to mind...