Aug 29, 1998
RAY: This guy is driving a truck that weighs 2 tons, and in the truck, he has a thousand pounds worth of chickens. He's driving along, and he sees a sign that says the bridge ahead has a 5000 pound limit. Afraid that he has too many pounds, he doesn't know what to do. He gets out and starts to beat on the truck so that the chickens will fly. Does this work? Why or why not?
RAY: Here's the answer. The downward pressure of the chicken's flapping wings is equal to the weight of the chicken, and so the truck doesn't make it.