Why do electric plugs have holes?
BrainStuff
English - August 08, 2014 16:09 - 2 minutes - 1.94 MB - ★★★★ - 1.6K ratingsNatural Sciences Science Technology Homepage Download Apple Podcasts Google Podcasts Overcast Castro Pocket Casts RSS feed
Previous Episode: What is the right way to remove a leech?
Next Episode: Why do limbs fall asleep?
You might have noticed that plugs for electric appliances have two holes. There are three reasons for these apertures -- find out what they are in this podcast from HowStuffWorks.com.
Learn more about your ad-choices at https://www.iheartpodcastnetwork.com
See omnystudio.com/listener for privacy information.