They started by having a PGA pro hit a golf ball with no dimples. But this one actually worked. 36:35. They covered a car with about 1" of clay, and tested it with a smooth surface and with dimples. This is the norm when analyzing and solving real-world problems. The only purpose of the skin is to reduce drag (and add advertising space). The Mythbuster dimples were supposed to be on the same scale as a golf ball while the Fastskinz are not. Can you fold paper more than 7 times? The sad passing of Grant Imahara is an opportunity to reflect on all the joy and science that the Mythbusters show delivered fans for … Saw an episode of Mythbusters last night - they began by testing if a dirty car gets better gas mileage than a clean car (based on the assumption of a dirty car giving a "golf ball effect" - the dimples on a golf ball break up the airflow and result in better aerodynamics). For aircraft, it may be a strength/weight thing or a cost of manufacturing thing. These provided extra strength at the expense of drag. Mythbusters. The theory was that the dirt would have a dimpling effect similar to that of a golf ball, but their tests told a different story. The series premiered on the Discovery Channel on January 23, 2003. Les Stupéfiants here on a sadder note, RIP Jessi Combs ( she replaced Kari while she was on maternity leave ) -- Last edit: 2019-08-28 21:59:53: night cub 2020-07-14 06:29 Love that Episode and the one with the Lighter Salesman whos Car Burned because a Lighter Exploded: Baube 2019-08-28 21:59. Race car designers will go to spectacular lengths for the tiniest improvement in performance. Zipp puts dimples on their wheels to reduce drag : http://www.zipp.com/wheels/detail.php?ID=149 engineering the size and placement of the dimples-- they just made the car look like an oversized golf ball).Imagine if MIT or whoever got their hands on this and squeezed a little more out of it. There is no consistent system for organizing MythBusters episodes into seasons.The show does not follow a typical calendar of on and off air periods. UightaHubert1230. But a Formula 1 car looks pretty weird already. Spanning over a decade, there are many episodes in contention for the best. Share Share Tweet Email. On the last episode before breaking for Christmas, the Mythbusters build team undertook the slightly ambitious project of skipping a car across a pond, as shown in the movie Cannonball Run. By mid-afternoon the white car had a temperature of 126 °F (52.2 °C), while the black car had heated up to a temperature of 135 °F (57.2 °C), about 9 degrees hotter in the Fahrenheit scale. A car is obviously not the same type of shape as a golf ball, but the idea behind MPG-Plus is that dimples on a car body could have a similar effect. I think I’ve read about WW2 fighter aircraft with textured surfaces, but a quick google didn’t turn up anything. While dimples help on a round golf ball and cars with average aerodynamic efficiency, maybe they wouldn’t have much effect on a Prius or a P-51 Mustang. Experiment 1: Problem Dimple car: 1. They tested with the 1 inch of clay as a smooth surface, then cut dimples in the existing clay surface on the car. GTA 5 Online "MythBusters" Episode 2 Myth Busting "GTA5 Online Myths" EliteSnipersRF. Powered by Discourse, best viewed with JavaScript enabled, Dimpled Lexus LS 460L to Debut at U.S. Open, http://www.zipp.com/wheels/detail.php?ID=149, http://www.bikesportmichigan.com/shop/product.php?productid=16682. Keep reading to learn about ten of the best car-based myths featured on Mythbusters! I disagree on the structural strength though. mythbusters. There are so many vanes and various doodads that it’s hard to believe the airflow isn’t going exactly where the designer wants it. I can see several places in the manufacturing process that dimpling would add significant costs. The sheet metal is window dressing for the most part. They discovered that the average gas mileage for the dirty car was 24 miles per gallon while the clean car … They found that the dimpled car achieved 29.65 mpg, an 11% improvement! Meanwhile Kari, Grant and Tory are hitting the sauce and comparing hangovers to test an age old adage about beer and liquor. Manufacturing a dimpled sheet metal car body WOULD present problems, but how about a lightweight plastic cladding with dimples in it? And the OP is probably thinking of aircraft with corrogated metal skins, best seen in the Junkers Ju52/3m. IvoryKim7101. All frame. 45:36. For race cars? With Jamie Hyneman, Adam Savage, Tory Belleci, Grant Imahara. I think I’m going to spend some time in my garage with a ball-peen hammer tonight. Eleven percent is a major improvement, and I’m sure the texture could be fine-tuned for better results. Sweaty Kari | MythBusters . https://www.autoblog.com/2009/10/22/mythbusters-golf-ball-like-dimpling-mpg Informations sur votre appareil et sur votre connexion Internet, y compris votre adresse IP, Navigation et recherche lors de l’utilisation des sites Web et applications Verizon Media. The Beer vs liquor was entertaining, but pointless from the outset with such a small sample size. My General Question is "Why aren’t we seeing hybrid cars, race cars, and aircraft with textured sheet metal? Just a change the the press and voila…good to go. Cycling has been on the dimpled stuff bandwagon for quite a few years. At first this probably seems like a ridiculous thing to try — of course, on Mythbusters, what isn’t? The decrease in water drag has been demonstrated clearly. But, while it reduces air drag, it may also reduce structural strength - meaning they’d have to thicken the metal to get the same strength. For airframe - the skin is very much part of the structural strength. 9:53. Part of the reason may be that the Mythbusters got much better results than other people who have tried this: http://www.popularmechanics.com/automotive/new_cars/4316702.html. MythBusters - Sniper Myth. However, the crew then built a car with a (golfball-like) dimpled surface. Nos partenaires et nous-mêmes stockerons et/ou utiliserons des informations concernant votre appareil, par l’intermédiaire de cookies et de technologies similaires, afin d’afficher des annonces et des contenus personnalisés, de mesurer les audiences et les contenus, d’obtenir des informations sur les audiences et à des fins de développement de produit. If it can make the car go faster or need fewer pit stops, it seems like they’d be all over it. It got 26 mpg in a precisely controlled mileage test. I’d love to know if they’ve considered it, though. Adam and Jamie covered a car in dirt and mud and drove it down a track at highway speeds to measure its fuel efficiency, and repeated the test after the car was cleaned. My educated WAG: Increased manufacturing costs to include dimples >> improvements in fuel economy from said dimples. I thought the same thing. It doesn’t. They also observed that the car with the smooth clay surface got about the same results as the car without clay - they only measured the mileage at a constant 65 mph, and noted that the extra weight probably DID mean that it took more gas to accelerate to 65 in the first place. 3:29. Not a bad episode. The designers of the time focused on getting everything as smooth as possible. Last night’s Mythbusters (Oct 21) tested the hypothesis that a dirty car gets better mileage than a clean one. The OP might be thinking of the laminar flow airfoil (wing) design, first used intentionally in the P-51 Mustang fighter (apparently the B-24 Liberator bomber had some laminar flow characteristics as an accident of design), and also used in the P-63 Black Widow. Adam and Jamie get down and dirty with the myth that a muddy motorcar gets better gas mileage than it's clean cousin. If were assume the same weight of a car’s steel sheet metal for dimples vs non-dimpled dimpled skin would probably severely compromise the rigidity of the steel panel and probably affect the crash test safety of the car. Wait, isn’t a car covered in 1" of clay heavier than the same car with 1" less clay? This myth was not shown in the actual episode aired in the United States, but was featured in the version of the episode aired outside of North America and on the MythBusters website and included in the iTunes download as an extra scene. MythBusters - S06E16 - Alcohol Myths. It would also be interesting to know of any more extensive studies undertaken by the automotive manufacturers. The guys investigate lingering car smells and a raccoon in the drain. The wings do their job, but if some other part of the car would benefit from lower drag, they’ll consider it. 02:36 STILL... Mythbusters is awesome. By Darby Harn Jul 29, 2020. I DID find it an interesting result (and probably a more worthwile use of time than watching Grant throw up). Vous pouvez modifier vos choix à tout moment dans vos paramètres de vie privée. Lexus will have a one-off LS 460L to show at the U.S. Open in Farmingdale NY next week, having commissioned a full-body cover designed to look like the surface of a golf ball. … Mythbusters was one of the most fun and creative shows of its time. MythBusters is an Australian-American science entertainment television program created by Peter Rees and produced by Australia's Beyond Television Productions. Mythbusters Episodes. Here is a helmet with dimples: Autoblog fait partie de Verizon Media. The myth was based on the dimples of a golf ball vs. a smooth surface. This was a function of wing cross-sectional shape, not dimpled texture, but there are offhand references to it in history books that can be confusing. They then took this same car and created golf ball like dimples across the entire vehicle, while running it through the same exact tests. Ten years after their very first episode, the MythBusters revisit their tricky rocket-car experiment. Here’s a look at the rather interesting physics behind it. The topics, in general, do not fit neatly into individual and separate concept groups. Pressing the sheet metal wouldn’t be one of them, thats just an alteration to the dies. The topics chosen lend themselves well to a physics analysis. Stop the video when told and then go the following websites below and answer the questions before starting the 1 st video again for the next instructions. The strength is all in the frame. Is the third time the charm? 0. The 10 Best Mythbusters Episodes, Ranked. It has been argued that dirty cars are more fuel efficient than clean ones for the same reason that dimples on a golf ball improve its aerodynamics during flight. The bonus is that they show a resistance to barnacles too. The Mythbusters tested if a car gets better mileage with golf ball dimples and the dimpled car got 11% better mileage than the same car with a smooth finish. Comment. The Mythbusters didn't even do it in a very scientific way (I.E. He thin hit a normal golf ball and averaged around 280 yards. Look at a dune buggy as an example. They were testing freeway speeds, testing during acceleration would involve too many variables. I think that the FastSkinz dimples are not big enough to detach the laminar flow while the big dimples on the Mythbuster car do detach the flow. The textured car did 11% better. I saw a great episode of Mythbusters last night. Even when I was in the AF, they never really let anyone close enough to discern such details. Dimpled cars and aircraft (Mythbusters) Baal_Houtham October 22, 2009, 4:16pm #1 Last night’s Mythbusters (Oct 21) tested the hypothesis that a dirty car gets better mileage than a clean one. The MythBusters used two identical cars, one black and the other white, and left them both out in the summer heat with thermometers in both. Pour autoriser Verizon Media et nos partenaires à traiter vos données personnelles, sélectionnez 'J'accepte' ou 'Gérer les paramètres' pour obtenir plus d’informations et pour gérer vos choix. I really didn’t expect the results, because I had figured that if something that simple would work, they’d already have dimpled race cars. MythBusters is a science entertainment TV program created and produced by Australia's Beyond Television Productions for the Discovery Channel.. Identifying the Independent and Dependent variables of an experiment with the Mythbusters Go to the following websites and begin the watching video. If what the Mythbusters did can be replicated, you might see it in the future. The added weight may offset the reduced drag. Episode Viewers and Ratings. The topics in this ebook are taken from select episodes of the Mythbusters television show. No need for sheet metal to provide strength. For all I know the B-2 and F22 may have micro-dimples in their skin. What are the manufacturing problems in applying the idea to fiberglass bodies? Well the dirty car got poorer gas mileage so the initial myth was busted. I don’t know of any ww2, or ww1, aircraft with textured skins to improve drag. A possible reason why dimpling isn’t used on aircraft or race cars: they are already designed for great wind tunnel results. Season 11, Episode 6 Invisible Assassins . Mythbusters S05E14 Baseball Myths. MythBusters Stunned by Fuel Efficient 'Golf Ball' Car Commonwealth Club - Cubberley Community Theatre Jamie Hyneman and Adam Savage, the men behind Discovery Channel's "MythBusters," share behind the scenes stories from their daring, often rudimentary and typically inadvisable tests of myths, rumors and complete hogwash with Kevin Kelly, Wired magazine's founding … The smooth clay car (with a running start) got mpg equal to a normal painted vehicle. Can A Car's Gas Mileage Be Improved By Adding Golf Ball Dimples? Mythbusters Adam and Jamie test the golf ball dimple effect on a car along 15th Street at the old Concord Navel Weapons Station, ammunition bunker area. 2:54. MythBusters (TV Series 2003– ) cast and crew credits, including actors, actresses, directors, writers and more. I do not believe there is significant structural strength provided by the sheet metal at all. 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