Brains On


The questions we have about numbers are uncountable. But here are a few of them: Where does zero come from? How is there more than one kind of infinity? What is it like to do math when numbers have different colors — and personalities?

(All these questions) + (a few more) = (this episode!)

Hungry for more?
Click here for more on synesthesia
click here for more on infinity

Music in this episode by Bopping, Advent Chamber Orchestra and Marc Sanchez.


If you look a little closer, listen a little harder, you’ll notice the secret life of things all around you. Want to know about the secret lives of bees, crickets, coral — and your own backyard? Give a listen!

For more information on disappearing bees, check out this post.


In this episode, co-host Kate Wexler joins us to ask and answers some questions related to extinction:

-Did dinosaurs have feathers?
-What is extinction anyway?
-Could you bring back species that have gone extinct?

And you can find out more about paleontologist Kristi Curry Rogers here.

SPOILER ALERT: If you want to see that dinosaur we talked about during this episode’s mystery sound, you can see it here.



Listen in as scientists share what they know! Complicated ideas made fun. explore_btn

Mystery Sounds!

How good is your ear? Put it to the test by identifying these sounds. explore_btn


1,2,3,4, rock some science tunes some more! Learn about new ideas while getting your groove on.
Brains On