Earthrise: The picture of our planet that changed the world
50 years ago NASA astronauts took a picture that changed the world. It was a full color photo of planet Earth as seen from space. This image inspired many to think differently about our home.
In this episode we'll tell the tale of that epic snapshot. Plus we'll explain how Earth and our solar system formed in the first place. We'll talk to astrophysicist Lindy Elkins-Tanton about whether there are other planets like Earth in the universe. Plus we have an all new Mystery Sound and a Moment of Um that answers the question “Why do dreams seem longer than they are?”
So say cheese and enjoy! This episode is sponsored by Pre (eatpre.com and offer code BRAINSON). You can support Brains On at brainson.org/donate
Soil: Can you dig it?
We’re ready to get our hands dirty as we explore the stuff beneath our feet. Clay, sand, mud — soil is everywhere. And it’s alive! We’ll find out how it helps plants grow and learn about all the little organisms that are invaluable in the process (hint: it involves something called the “poop loop”). Plus: A brand new Moment of Um answers the question: “What’s inside of a tooth?” Today’s episode is sponsored by the CBC podcast Tai Asks Why and Quip (getquip.com/brainson). You can support Brains On at brainson.org/donate
Dreams: The science of a sleeping brain
You dream every night, even if you don't remember them. But why? We'll hop on a wild ride to go inside the brain and see which parts help create these often fantastical images and storylines. We'll also learn how to take control of our dreams and how they make us more creative. Plus: a new mystery sound and a Moment of Um answers the question "How do octopuses make ink?" This episode is sponsored by Thoughtfully (thoughtfully.com/brains), Pre (eatpre.com offer code BRAINSON), and Little Passports (littlepassports.com/brains).
Voices: How do we make sound?
We are very vocal about this episode, and that’s because it’s all about voices. We look into how our bodies produce sound and talk to a voice recognition expert. And we find out what’s happening when helium enters the equation. Plus, humans don’t have the voice market cornered -- what about other animals? We’ll drop in on a few creatures and find out how they make sounds too. All that plus a brand new Mystery Sound and berry delicious Moment of Um. Today’s episode is sponsored by Quip (getquip.com/brainson), KiwiCo (kiwico.com/brainson), and Bombas (bombas.com/brains). You can support Brains On at brainson.org/donate
Roller coasters: from dream to extreme
How do roller coaster designers go from dream to reality? World-renowned roller coaster designer Alan Schilke tells us how he does it. Also — why do some people feel sick or dizzy after riding them? And how do coasters make you feel like you’re floating? Plus: a tricky mystery sound and a Moment of Um that answers the question, “How do boomerangs come back?”
This episode is sponsored by Quip (getquip.com/brainson), Thoughtfully (thoughtfully.com/brains) and Little Passports (LittlePassports.com/brains).