What should producers Marc Sanchez and Sanden Totten debate this time? Lasers vs. Fire? Left brain vs. Right brain? Chocolate vs. Vanilla? Vote!
How does the moon control the tides? Where do waves come from? And what’s it like to live in a tide pool?
The process that turns sand into glass is very cool – or rather, we should say very hot. Very, very, very hot as it turns out. Humans have been turning minerals from the earth’s crust into glass for 3,500 years. Find out how it’s done and how it’s evolved – from blowing glass by hand to a factory that makes hundreds of glass bottles every minute. Plus: The mystery sound!
Pollen, peanuts, dust mites. These things aren’t poisonous – so why do some people’s bodies act like they are? In this episode, we’ll find out what happens during an allergic reaction and hear about new treatments.
How and why do mosquitoes suck our blood? Why do their bites itch ALL the time? Why do some people get bitten more than others? And do these pesky and possibly dangerous insects serve any kind of useful purpose?
How do planes stay in the air? And how did humans figure out that it wasn’t enough to just strap wings to our arms and flap them like birds?
Have you ever wondered about what’s beyond the edge of the universe? Or maybe a better question: is there even an edge of the universe? And what does it mean that the universe is expanding? Nine-year-old Thea talks with astrophysicist Katie Mack to find answers to her many questions about the universe.
Why do humans have hair and not fur? How does hair grow? Why does it turn gray? How does hair become curly or straight? Black, brown, blonde or red?
We’re back with new episodes! Carnivores are animals that only eat other animals – so how do they get the vitamins, minerals and fiber that we humans get from eating plants? We take a trip to a salad bar with some animal pals to find out.
We’ve been catching colds for millennia – but it wasn’t until fairly recently that we actually understood how and why we get sneezy, coughy, and achy. In this episode, we find out more about the common cold: Does standing outside in the cold actually make it easier to get sick? Is there a cure that […]