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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.

2016 Chevy Camaro to drop 200 pounds

The sixth-generation Chevrolet Camaro makes its grand debut on May 16 at a big celebration on Detroit's Belle Isle. Until then, Chevy's strategy seems to be showing off the pony car's new components piece by piece. With the exhaust headers and front end already on display, the Bowtie is now giving a glimpse at some of the upcoming model's aluminum components. The Camaro is going on a diet for its latest generation, and Chevy claims that the switch to the Alpha platform and other new components shed over 200 pounds compared to the current model. That will put the pony car at around 3,500 pounds. The lower weight will contributes to better fuel economy, quicker acceleration and more direct handling, according to the automaker. Among the changes are aluminum front and rear suspension assemblies (pictured above) that weigh 21 percent less than the current units. Also, Chevy promises in its announcement "links on some models feature an intricate, structurally optimized design made with a rigid composite material that's even lighter than aluminum." In addition to these improved parts, the Camaro uses the lightweight metal for the beam that supports the instrument panel to save 9.7 pounds more. The only two pieces reportedly carrying over to the latest design are Chevy's bowtie and SS badges, and at least one engine in the range is known to be a version of the 6.2-liter LT1 V8. With over a month until the next Camaro's debut, we might get a glimpse of even more of the car's new parts in the coming weeks. Related Video: 2016 Camaro Does More with Less New model is at least 200 pounds lighter than current car 2015-03-30 DETROIT – For the all-new, 2016 Chevrolet Camaro, the team was challenged to improve the handling, acceleration and fuel economy of the award-winning current model. To meet all three objectives, the team focused on a singular mission: reduce mass. By obsessively searching for opportunities to save ounces, the team pared more than 200 pounds off the Camaro compared with the fifth-generation model. As a result, the Camaro does more with less, according to Al Oppenheiser, Camaro chief engineer: "We kept the cornering confidence and control that make the Gen 5 Camaro 1LE so fun to drive, and added a greater sense of agility," he said. "The new Camaro brakes harder, flicks into corners more quickly, and drives out of the corner faster.

Watch a camo'ed next-gen Chevy Volt go ice driving

Teasers for the 2016 Chevy Volt continue, The Bowtie showing us in this latest outing how its range-extended hybrid dances on ice and snow. It will only take 42 seconds of your life so don't expect an Arctic challenge, but if you in the snow regions had any doubts about how it will handle the frozen goods, this should help assuage them. The bigger and better, more powerful and faster Volt - able to run regular fuel - will get out from under its camo at the North American International Auto Show next month. For now, enjoy the way it moves its hips in the video above. News Source: Chevrolet via YouTube, Facebook Detroit Auto Show Chevrolet Videos