On 10/7/2014 2:33 PM, Craig Berry wrote: > Yes, but the shapes and materials for the two vary considerably. If we could plate fighters in tank armor, and streamline them only for air resistance, not for lift - or, alternatively, make tanks fly - I think you'd find the difference is less than you think. Bonded superdense: it's a floor wax *and* a dessert topping! -- --------------- Kelly St. Clair xxxxxx@efn.org