#489 Sand
Did you know that, even though sand the most used building materials in world, the sand in the desert is more or less useless? Did you know there is a serious black market trade in sand in certain par...
31 Aug 20181h
#488 Big Chicken (Rebroadcast)
We eat a lot of chicken. But we didn't used to. What changed? In part, what changed was the discovery that antibiotics could build a bigger, better chicken. Now, the big chicken may be suffering the r...
24 Aug 20181h
#487 Knitting in PEARL
This week we're discussing math and things made from yarn. We welcome mathematician Daina Taimina to the show to discuss her book "Crocheting Adventures with Hyperbolic Planes: Tactile Mathematics, Ar...
17 Aug 20181h
#486 Volcanoes
This week we're talking volcanoes. Because there are few things that fascinate us more than the amazing, unstoppable power of an erupting volcano. First, Jessica Johnson takes us through the latest ac...
10 Aug 20181h
#485 Fine Times with Wine
How do you pick your wine? By its history? By its grape? By the picture on the bottle? Well you're about to get your wine world turned upside down. We'll hear about the history of this fabulous fermen...
3 Aug 20181h
#484 Animal Weapons (Rebroadcast)
This week, we're talking about weapons: both the ones that evolve in nature, and those created by humanity. We'll talk about the arms races that spur the development of horns and claws, warships and n...
27 Juli 20181h
#483 Wild Moms
This week we're talking about what it takes to be a mother in the wild, and how how human moms compare to other moms in the animal kingdom. We're spending an hour with Dr. Carin Bondar, prolific scien...
20 Juli 20181h
#482 Body Builders
This week we explore how science and technology can help us walk when we've lost our legs, see when we've gone blind, explore unfriendly environments, and maybe even make our bodies better, stronger, ...
13 Juli 20181h
