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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.

Chevrolet donates 300 vehicles damaged by Sandy to help train first responders

Super Storm Sandy took out a lot of automobiles in its path of destruction through the Northeast last October. The number surpassed 250,000 at last count, and a few of those were owned by Chevrolet - cars either sitting on dealership lots or waiting at port to be shipped off. Rendered unsellable by the water damage inflicted by Sandy, these vehicles were facing the crusher. But Chevy didn't send them there.
Instead, Chevy had a better idea: It will be donating 300 of these vehicles damaged by Sandy to help train first responders at Guardian Centers in Perry, GA. Chevy is the official automotive partner of Guardian Centers, which is an 830-acre facility that trains first responders in disaster preparedness. Junked cars are practically a consumable commodity there, where a full-size cityscape simulator gives trainees an entire urban center in which to train for all sorts of rescue operations and disaster scenarios.
Chevy says its particular vehicles will be used "in conjunction with role players for wide area searches, traffic congestion in emergency situations, counter terrorism, public order and mass casualty exercises." While grim scenarios all, we're certainly glad there are people out there preparing for the unexpected. While a zombie apocalypse isn't officially on the list of potential disasters to prepare for, when the virus hits, we'll be hot-footing it to Perry, GA to hang with these guys and gals.

Sinkhole Opens Up In National Corvette Museum, Swallows Eight Cars

More cars are being moved inside the National Corvette Museum in Bowling Green, Ky. to avoid falling down the same sinkhole that swallowed eight classic sports cars early this morning, Autoblog reported. Museum officials said the hole was discovered when motion sensors activated around 5:45 a.m. The rescue mission can be viewed on the museum's live feed cameras, which weren't working after the sinkhole emerged. A 1993 ZR-1 Spyder and a 2009 ZR1 "Blue Devil," both on loan from General Motors, were among the cars that fell into the sinkhole. The museum owned the other affected Corvettes, which included a 1963 Corvette, a 1984 PPG Pace Car and the 1 millionth Corvette ever produced. The state of the cars at the bottom of the hole isn't known, but trial lawyer and sinkhole expert Ted Corless said the cars may be a total loss for the museum and GM. "Most states, including Kentucky, exclude damage caused by sinkhole activity," he said. "There will be, in all likelihood, a claim made, but a lot of policies would specifically exclude these kinds of damages." Corless has 15 years experience dealing with sinkholes. He said that typically neither the building, nor the cars themselves are protected under their insurance policies. "I would have to say, more likely then not, they're going to have an uninsured loss measured in the hundreds of thousands of dollars." The museum is closed Wednesday while a structural engineer assesses the damage. Related Gallery 2014 Chevrolet Corvette Stingray Test Drive View 9 Photos Related Gallery 2014 Chevrolet Corvette Stingray Test Drive View 9 Photos Weird Car News Chevrolet GM corvette