How do things glow in the dark?

What happens when a chemist and a non-chemist make a podcast together for seven years? Which chemistry lessons stuck, which episode ideas spectacularly refused to cooperate, and does Jam still count as a layperson after all this time? Joined by returning guest Claire, Melissa and ...  Show more

What exactly is a swamp cooler, and why can it beat the heat in Arizona but leave you sweaty and betrayed in Houston? How can an air conditioner run on water, what does humidity have to do with its effectiveness, and could an icy new invention help prevent overloaded power grids? ...  Show more

With Halloween just around the corner, we're talking all things glow sticks! What makes glow sticks glow, and what does it have to do with ocean bacteria? Let's take a look at the science of chemiluminescence. Ellen Phiddian is a science journalist at Cosmos. She has a BSc (Honou ...  Show more

If you've ever bitten into a Wint-O-Green Life Saver candy in the dark, you've probably noticed an accompanying spark of light. Marshall Brain explains the chemistry behind the phenomenon known as triboluminescence in this episode.

Lots of creatures are able to glow, like fish, mushrooms, fireflies and even some bacteria! This special ability is called bioluminescence and it looks like magic, but it’s actually chemistry. In this episode, we’ll travel to the bottom of the ocean in the ExPLORERR to meet some ...  Show more

Ever reach out to the spirit world with an ouija board? Or stare into a dark mirror for Bloody Mary? Perhaps peer-assisted levitation was more your style. In this episode, Robert and Julie bust through the fantasy of these paranormal parlor tricks and examine the underlying sc ...