Josh Clark is a senior writer at and is the co-host of the podcast Stuff You Should Know where he simplifies and reveals surprising facts about common ideas.
Recent episodes featuring Josh Clark
How Ventriloquism Works
Stuff You Should Know
Ventriloquism – where a skilled performer “throws” their voice, making it seem like a dummy on their knee is talking – has taken a long, circuitous road from early prophets, to witches, then finally to the stage. Get to the bottom of this uncanny trick. Learn more about your ad-choices at
Short Stuff: Horseshoe Crab Blood
Stuff You Should Know
Perhaps the most expensive liquid on the planet is the blue blood that comes from horseshoe crabs. Researchers realized that horseshoe crab blood could indicate the presence of pathogens and the massive, ongoing horseshoe crab harvest began.  Learn more about your ad-choices at
Nuclear Semiotics: How to Talk to Future Humans
Stuff You Should Know
The nuclear waste we produce will be dangerous for a very long time. We’ve figured out how to safely store it in the earth until it’s no longer a biohazard. Now we just have to figure out how to warn humans 10,000 years in the future to stay away from it. Learn more about your ad-choices at
SYSK Selects: Are We in a Cyberwar?
Stuff You Should Know
There's a secret war going on around us, and it's happening on a daily basis. The Air Force has a unit specifically designed to carry out and defend against cyberwar. Go deep into this alarming type of war in this classic episode. Learn more about your ad-choices at
How Peyote Works
Stuff You Should Know
Josh and Chuck have tackled a lot of drugs on the show, but peyote has loomed like a bad Jim Morrison poem. Learn all about this plant today.  Learn more about your ad-choices at
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Jul 15th, 1976
Atlanta, GA, USA
Episode Count
Podcast Count
Total Airtime
1 month, 1 week