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Industrial designer and underwater photographer Bob Evans got the inspiration for GasPods from the bumps he observed on lobsters' backs. It seems counterintuitive, but protrusions on an already-streamlined surface increases aerodynamic efficiency. More surface area means less resistance from both water and air, so the lobsters' bumps decrease drag.
Applying these physics to automobiles, along with his knowledge gained from years designing swim fins, Evans created the GasPod, which attaches to strategic points on a car to increase fuel efficiency. At 65 mph, Evans claims an aerodynamic drag reduction of 5 percent on a a two-door Volkwagen Golf. Personally, Evans is getting a 5 percent boost in efficiency for his Volvo Cross Country XC70. He said the pods save him $6.19 per tank at current gas prices, and a trip that would consume three-quarters of a tank now uses only half.
With those figures, Evans says that for every gallon of gas saved, 19.4 pounds of CO2 are prevented from entering the atmosphere, and approximately 97 gallons of water are left unpolluted.
The pod’s magnets mean users can move them around, or, if the body material won't adhere, they can be planted with automotive tape. Prices range from $29.95 for a set of three adhesive-backed pods in a stock color, up to $124.95 for a custom-painted set of nine magnetic pods. And if you think you've seen something similar before, you're right. Mitsubishi fitted similar winglets – or in Mitsu parlance "vortex generators" – to increase downforce on their rally-bred Evolution sedan.
Because this is valuable info!
Aerodynamics of a cow
Aerodynamics of a lobster
Aerodynamics of an elephant
Aerodynamics of a goat
What happens when you let a drunk dog-obsessed engineer use high powered computational fluids packages? Aerodynamics of a Corgi!
what happens when you let a drunk dog-obsessed engineer use high powered computational fluids packages
Bonus: Jeep Wrangler – less aerodynamic than a cow!
Aerodynamics, from Greek ἀήρ aero (air) + δυναμική (dynamics), is the branch of fluid mechanics which studies the motion of air, particularly when affected by a solid object. It is a core part of science and engineering, from cars, aircraft and engines, to buildings and bridges, to atmospheric science, sports science and even throughout biology.