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How GM engineers are using diaper 'snow' to keep you warm

Testing how snow affects General Motors' vehicles isn't really a problem right now for the company's engineers, but in the dog days of summer the process isn't exactly easy. The only real option is for them to book time at the automaker's climatic wind tunnel. However, a flash of brilliance from an engineer allows snow to be simulated regardless of the temperature outside, and the discovery is all because of his daughter's wet diaper. The realization came to GM Thermal Systems engineer Nicholas Jahn while he was swimming with his daughter and noticed how her diaper ballooned in size in the water. He found out the substance that makes this possible is called sodium polyacrylate. When the material gets wet it grows and forms fluffy flakes that are a close imitation of snow. Best of all, the stuff can be prepared easily any time of the year, and it's reusable. The engineering team uses the material to test the effectiveness of the heating systems of GM's vehicles. They spread the sodium polyacrylate over the inlets at the base of the windshield to obstruct the airflow and then crank the heater. After some time, they can see how much is being sucked into the system and design more efficient systems in the future. See how the process works in the video above and read about the diaper discovery in GM's press release below. Diapers Change Chevy Cruze Winter Warm-up Time GM validation engineer uses diaper material "snow" to reduce frigid drives 2015-01-06 DETROIT – An item commonly found on an infant's changing table is helping General Motors' engineers simulate snow year round, ensuring heating systems in cars like the 2015 Chevrolet Cruze can quickly and efficiently warm its interior. Packed snow can prevent air from entering the inlet panel at the bottom of the windshield, obstructing the flow of air into the heating system and reducing the amount of air it can push out. This can lead to less efficient warming of the car's interior and windshield defrosting. "The last thing anyone wants to do when it's freezing cold out is scrape their windshield," said Nicholas Jahn, GM Vehicle Thermal Systems engineer. "The testing we perform on the Chevrolet Cruze with the diaper material allows us to maximize the car's heating capabilities." Ironically, Jahn stumbled upon his diaper-based testing method in the middle of summer. During a swim with his daughter, he noticed her diaper multiplied in size when it came into contact with water.

Kurt Busch to shake and bake (again) in Ricky Bobby car at Talladega

Kurt Busch will channel Ricky Bobby for another NASCAR race, this time driving a Wonder-sponsored Chevrolet SS, in this weekend's Camping World RV Sales 500 at the Talladega Motor Speedway. Unlike past tie-ins, though, there's actually an element of sponsorship here (the "Me" car was done when Busch was running on a team without sponsorship).
It was arranged by Flower Foods, the new owner of the Wonder brand. Wonder was part of the bankrupt Hostess company, which temporarily exited the US market 2012, and set off the Great Twinkie Shortage.
Busch has made something of a habit of channeling characters from famous racing movies, most recently running Tom Cruise's City Chevrolet livery from Days of Thunder in a Nationwide Series race earlier this year. Busch kicked off his movie-inspired antics, though, at Talladega in 2012, when he raced El Diablo's ("It's like... Spanish for like a fighting chicken") "Me" car complete with a cougar on the hood. He even went so far as to channel the lovable idiot that is Ricky Bobby during the race, dropping a few catchphrases about macchiatos and slingshots.

Optimus Prime and Bumblebee head for auction

This month at the Barrett-Jackson auction in Scottsdale, AZ, the customized 1992 Peterbilt 379 of Optimus Prime from the Transformers series and director Michael Bay's own 1967 Chevrolet Camaro SS for Bumblebee will cross the block. The company will sell both with no reserve, and they'll come with letters of authenticity. This specific Bumblebee is the mean-looking restomod from Transformers: Age of Extinction, the fourth installment in the franchise, and Bay apparently liked it enough to hang onto the aggressive coupe after filming. He even autographed the car for this sale. The Camaro would make a great star in a Hollywood chase scene with its LS3 V8, six-speed manual gearbox, Wilwood brakes, and custom suspension. Bumblebee also wears a menacing satin black body with yellow accents and custom carbon fiber fender flares. Optimus Prime's Peterbilt appeared on-screen in the first three Transformers films, the auction house's spokesperson Aaron Cook told Autoblog. An Autobot emblem sits proudly on top of the grille, and the truck wears a flame paintjob. Barrett-Jackson's description says that the semi is fully functioning but no longer street legal and is now for display only. It would likely be the ultimate piece in anyone's Transformers collection. CRAIG JACKSON'S BARRETT-JACKSON TEAMS UP WITH MICHAEL BAY, PARAMOUNT PICTURES TO AUCTION ICONIC TRANSFORMERS VEHICLES Paramount Pictures is auctioning Optimus Prime® (Lot #1325.1), the iconic truck featured in the first three Transformers™ films American filmmaker Michael Bay will auction his 1967 Chevrolet Camaro SS (Lot #1325.2), which starred as Bumblebee™in the blockbuster movie, "Transformers: Age of Extinction" SCOTTSDALE, Ariz. – Jan. 4, 2016 – Barrett-Jackson, The World's Greatest Collector Car Auctions®, announced today that Paramount Pictures and American filmmaker Michael Bay will auction two vehicles that starred in the Transformers movie franchise, during the company's nine-day 45th Anniversary Auction, from Jan. 23-31, 2016, at WestWorld of Scottsdale. Up for sale at No Reserve is the iconic truck, Optimus Prime (Lot #1325.1), featured in the first three science fiction action films. Bay has consigned a 1967 Chevrolet Camaro SS (Lot #1325.2), which was cast as Bumblebee in the latest film, "Transformers 4: Age of Extinction." "The hottest Hollywood stars at Barrett-Jackson come in all shapes and sizes," said Craig Jackson, chairman and CEO of Barrett-Jackson.