Forever echo: Can a sound wave go on forever?

Brains On! Science podcast for kids

Lemonada Media

Kids & Family, Education For Kids

4.5 • 14.7K Ratings

🗓️ 23 April 2019

⏱️ 37 minutes

🔗️ Recording | iTunes | RSS

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Summary

Today we shout out our love for the ECHO! (echo echo) Discover how these curious callbacks happen and why we hear them in some places but not others. We'll also play you the longest echo in the world and take you to an echo-proof room. Plus, an actual echo stops by to share its new podcast and we hear the answer to this Moment Of Um question: why can wild animals drink dirty water when humans need clean water? Today’s episode is sponsored by Loacker (loackerlove.com/powermom2019), Goodnight Stories for Rebel Girls the Podcast (rebelgirls.co/podcast), Philo (philo.tv/brains) and New Cloud Control Cat Litter by Arm & Hammer. You can support the show at brainson.org/donate See omnystudio.com/listener for privacy information.

Transcript

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0:00.0	You're listening to Brains On, where we're serious about being curious.
0:04.1	Brains On is supported in part by a grant from the National Science Foundation.
0:11.8	So, Claire, you said that Echo is over here somewhere?
0:15.1	Yeah, there's a great echo in here. Check it out.
0:17.7	You're like, he-hoo!
0:19.8	You're like, he-hoo!
0:22.6	Ooh, okay, here, I'll try.
0:24.1	You-hoo!
0:25.6	You-hoo! You!
0:27.4	Actually, you know what?
0:30.6	Wait, what is someone there?
0:32.7	Hello? I've only ever heard echoes that repeat what you say.
0:36.6	I'm not a normal echo!
0:40.8	I'm tired of repeating back what everyone else says!
0:47.2	This is unexpected.
0:49.4	I think it's cool when echoes repeat things. It's so echoey.
0:53.9	It is cool, but I also have my own ideas!
1:01.0	I've got a great recipe for slime!
1:05.2	Plenty of tips for styling still lagmites and more!
1:11.5	I want to share my thoughts with the world!
1:16.0	But I'm stuck in this cave!
1:20.0	Ooh, you could be the world's first Instagram famous echo,
	...

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