BrainStuff
Whether the topic is popcorn or particle physics, you can count on BrainStuff to explore -- and explain -- the everyday science in the world around us.
July 8, 2015 • 2 min
UL stands for 'underwriters laboratories,' a safety testing organization -- but what exactly does this group do, and why do they do it? Tune in and learn more about the UL mark in this podcast from HowStuffWorks.
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