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What's the history of stop lights? What are some common myths about car dealerships? Join Scott and Ben as they take a closer look at all things automotive in CarStuff, a podcast by HowStuffWorks.com.
March 10th, 2011
Episode 326 of 820 episodes
Most people can recognize those iconic hazmat diamonds -- but what do they actually mean? In this episode, Scott and Ben break down the meaning behind the numbers, colors and symbols on hazmat labels.
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