Whatever happened to acid rain?

Something spooky was born on the American frontier in the mid-19th century: the idea that people’s personalities survive death and that some gifted individuals can communicate with them. It developed ...

19 Maj 20201h

Hi listeners, in case you haven't heard already, iHeartRadio just released a brand new podcast called Commencement: Speeches for the Class of 2020, where we collected speeches from notable folks all o...

18 Maj 20208min

Creating fire was possibly the most important human discovery, but it's easy to take for granted. But. Josh and Chuck get to the bottom of the chemistry of fire in their quest to explain everything in...

16 Maj 202028min

No food is more all-American than peanut butter – 80 percent of homes in the country have a jar of it in the pantry right now. And while the rest of the world might find peanut butter peculiar, maybe ...

14 Maj 202056min

You know those terrible leg cramps that come out of nowhere? They may be named after a drunken baseball pitcher. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio...

13 Maj 202011min

Herd immunity is an epidemiological concept that if enough people are inoculated against a disease the rest of us won’t get it. It’s been useful in holding back diseases like polio and measles, but we...

12 Maj 20201h 2min

Entrances to the underworld have been places of wonder for eons, and humans have ventured into caves to sleep, hunt, create art and explore. Thanks to the hobby of caving, that tradition continues tod...

9 Maj 202049min

The zipper may be the most unsung invention we humans have ever come up with. Prior to zippers, everyone walked around like idiots with nothing but buttons to hold their clothes together. The zipper c...

7 Maj 202054min