The massive earth (IE24kg) spins along it's axis at (11.186 km/h) and produces = 0.84 trillion kilo-joules of energy An (8500kg) airplane* flying at (220km/h) has an energy of : 3,740,000kj This (1600kg) automobile* traveling at (30m/h) has a net-output = 336,000kj ...however, the (350/pound) man (not-in-motion) = 0