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	Podcast:		BrainStuff
	Episode:		Why don't they use normal air in race car tires?
	Category:		Science & Medicine
	Duration:		00:02:34
	Publish Date:		2015-02-13 17:16:56
	Description:		Race car tires are often filled with nitrogen because nitrogen pressure is more consistent than air pressure. In this episode, Marshall explains why nitrogen is better for race cars -- but not for regular vehicles. Learn more about your ad-choices at https://www.iheartpodcastnetwork.com See omnystudio.com/listener for privacy information.
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