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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.

'Tomorrowland' movie will advertise Chevy Volt, E-NVs

Before the 2016 Chevrolet Volt arrives at dealerships, it's going to come to a cineplex near you. The next-generation hybrid and the EN-V electric networked vehicle concept will play bit parts in the background of the upcoming Disney movie Tomorrowland starring George Clooney and Britt Robertson. Chevrolet will run digital and television ads around the movie's opening, which is May 22 in the US. The Bowtie and Disney tie-up is another in their years-long collaboration, going back to the revamped Test Track that opened at Epcot Center in 2012, and Chevolet is also the official vehicle of Shanghai Disney. The press release below has more on the movie and the Volt, the movie trailer is above – there's no Volt in it, but there is a late-model Buick. Chevrolet and Disney See Possibilities in 'Tomorrowland' Film to help kick off marketing efforts for next-generation Chevrolet Volt DETROIT, 2015-03-26 – At their core, Disney and Chevrolet are entities of optimism, believing that with a little ingenuity, anything is possible. They will come together in the new Disney film "Tomorrowland" to imagine the possibilities. The all-new 2016 Chevrolet Volt and EN-V concepts appear in the backdrops of the present day and Tomorrowland. The film's U.S. debut is May 22. In Disney's riveting mystery adventure "Tomorrowland," a jaded scientist and an optimistic teen embark on a danger-filled mission to unearth the secrets of an enigmatic place somewhere in time and space. "Tomorrowland is a place where nothing is impossible, which is something that Chevrolet believes can exist in the here and now," said Tim Mahoney, vice president, Global Chevrolet. "The Chevrolet spirit reflects the hopes and possibilities of tomorrow in real instruments of change for today like the next-generation Chevrolet Volt." The first marketing efforts for the 2016 Chevrolet Volt will be tied to Tomorrowland. A television spot and digital advertising will debut in early May. The all-new Volt is an electric car with extended range, showcasing a sleeker, sportier design that offers 50 miles of EV range, greater efficiency and stronger acceleration. The Volt's new, efficient propulsion system will offer an estimated total driving range of more than 400 miles. With regular charging, owners can expect to average more than 1,000 miles between gas fill-ups. Chevrolet and Disney have a long history of collaboration around the globe.

2022 Jeep Grand Wagoneer, Nissan Frontier and a little Z06 preview | Autoblog Podcast #698

In this episode of the Autoblog Podcast, Editor-in-Chief Greg Migliore is joined by Road Test Editor Zac Palmer. This week they talk about cars they've been driving including the 2022 Jeep Grand Wagoneer, 2022 Nissan Frontier, 2021 Jaguar XF P300 and the 2022 Mini JCW Convertible. They also discuss the photo reveal of the 2023 Chevrolet Corvette Z06. They cap things off by helping someone spend their money on a new car. Send us your questions for the Mailbag and Spend My Money at: Podcast@Autoblog.com. Autoblog Podcast #698 Get The Podcast Apple Podcasts – Subscribe to the Autoblog Podcast in iTunes Spotify – Subscribe to the Autoblog Podcast on Spotify RSS – Add the Autoblog Podcast feed to your RSS aggregator MP3 – Download the MP3 directly Rundown What we're driving:2022 Jeep Grand Wagoneer 2022 Nissan Frontier 2021 Jaguar XF 2022 Mini JCW Convertible News 2023 Chevrolet Corvette Z06 preview Spend My Money Feedback Email – Podcast@Autoblog.com Review the show on Apple Podcasts Autoblog is now live on your smart speakers and voice assistants with the audio Autoblog Daily Digest. Say “Hey Google, play the news from Autoblog” or "Alexa, open Autoblog" to get your favorite car website in audio form every day. A narrator will take you through the biggest stories or break down one of our comprehensive test drives. Related Video: 2022 Jeep Grand Wagoneer Interior Review | Autoblog Short Cuts