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	Podcast:		BrainStuff
	Episode:		Why is there a small hole on the top of spray can lids?
	Category:		Science & Medicine
	Duration:		00:01:55
	Publish Date:		2012-10-22 21:47:25
	Description:		Many spray can lids have a tiny hole at the top. Check out this HowStuffWorks podcast to learn more about spray cans, shipping and air pressure. Learn more about your ad-choices at https://www.iheartpodcastnetwork.com See omnystudio.com/listener for privacy information.
	Total Play:		0