Who decides what robots look like? How do robots work and move? How are they controlled? And are robots alive? We tackle all your robot questions in this episode, and we’re taking a field trip to a local factory that uses hundreds of robots to help humans do their jobs. GlobalFoundries, in Essex Junction, Vermont makes microchips that go in all kinds of electronics. In fact, if your adults have a smartphone, more than likely it has a chip made at this very facility. Engineers Adrien Plouffe and Lucy White work with the robots at GlobalFoundries and answer your questions about robots, including: Why are robots made of metal? Why do people like robots? Do robots cry?

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Why can’t animals talk to us? Are humans the only animals that can talk? Can different species of animals communicate with each other? We learn about animal communication with Arik Kershenbaum, author of Why Animals Talk: The New Science of Animal Communication. He studies wolves, gibbons, dolphins and hyrax to learn how they communicate. Also in this episode: why are parrots able to speak human words but other birds can’t?

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Why do we have to poop? Why does fiber make you poop? Why is poop brown? Why does it smell so bad? Why do farts smell bad, too? Yup, we’re going there! In this episode, Mary Roach, author of Gulp: Adventures on the Alimentary Canal, answers your questions about those things that we’re told not to talk about in polite company: poop and farts. We learn how astronauts use the bathroom in space and how many germs are in one ounce of poop.

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