If you just celebrated Easter, you might have some stale marshmallow Peeps lying around the house. And if you want to avoid eating those Peeps, they are the perfect material for a science experiment you can do in your own kitchen.
With the help of a ruler and a microwave, you can use leftover Peeps to calculate one of the constants of the universe — the speed of light.
It might sound crazy, but all will be revealed in this video from NPR's science YouTube channel, Skunk Bear. As a bonus, you'll also get to see animated Peeps illustrate the history of the search for the speed of light going back to Galileo.
Copyright 2017 NPR. To see more, visit http://www.npr.org/.![](https://www.google-analytics.com/__utm.gif?utmac=UA-5828686-4&utmdt=Peep+Show%3A+Watch+Us+Calculate+The+Speed+Of+Light+With+Stale+Easter+Treats&utme=8(APIKey)9(MDAxODcyMTgzMDEyMTgxMTY5NjYxN2I4OQ004))
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