-
It will, he claims, have a lift-to-drag ratio eight times better than a jet airliner's, with a consequent saving in energy.
ECONOMIST: Maglev trains
-
And it will help lift a decades-long drag on our economy.
WHITEHOUSE: President Obama Signs Health Reform Into Law
-
By changing the angle of its wings and its body, the moth was able to create a delicate balance between the thrust pushing it forwards, the drag - or air resistance - pushing against it, and the lift keeping it in the air.
BBC: Footage reveals how insects use their bodies to hover
-
Unfortunately, because of the nature of air circulation, any downward-pointing force created aerodynamically generates a backward-pointing resistance in the process just as an increase in the lift of an aircraft wing as the flaps are lowered for take-off or landing creates more drag in the process, forcing the pilot to open the engine throttles to overcome the extra wind resistance.
ECONOMIST: CAR DESIGN
-
The better choice for human propulsion, he says, was the paddle-like deep-catch stroke, which actually produced more lift than sculling, along with a hefty dose of drag.
FORBES: How Cross-Training Can Make You A Better Swimmer: What Is The Best Technique Of Swimming The Crawl?