How PTSD Works
With Post-traumatic Stress Disorder the sufferer relives, over and over again, the worst moment of his life. What’s worse is medicine still doesn’t know how to treat it. Learn about this condition and how it’s leading to a n understanding of memory.
How Cicadas Work
Cicadas are crawling out from underground, where they have been hiding in the darkness for almost two decades. As of May 2013, they're invading the East Coast From North Carolina to New York. But why? Learn more about cicadas with Josh and Chuck.
How Aerosol Cans Work
In the 87 years since they were invented aerosol cans have protected soldiers, temporarily fixed flat tires, killed a boy who used too much deodorant and had their contents banned by most countries for wrecking the ozone layer. Tune in to learn more.