Straight Dope nitpick: there is no theory of aerodynamics that concludes that bees cannot fly.
Thre is an ancient anecdote that an engineer at a party in the 1920s did some back-of-the-napkin calculations that failed to demonstrate that bumblebees had sufficient wing area or horsepower to fly, but there has never been a “scientific” (or “engineering”) declaration that (bumble)bees cannot fly.