Brainstuff

In 1897, a plaster replica of the Parthenon built in Nashville for the Tennessee Centennial Exposition proved so popular that it was rebuilt in a more permanent form. Learn more about Nashville's Parthenon in this episode of BrainStuff. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Staple grains, like wheat and rice, can wear out the soil — and most have to be replanted from seed each year. Learn how researchers are seeking to create new varieties (like Kernza) to save the environment in this episode of BrainStuff. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Although the term 'grandfathered in' is applied in many situations today, it originally referred to laws about voting rights. Learn the history of this phrase in today's episode of BrainStuff. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Betta fish are popular aquarium pets, but there are a few common misconceptions about these beautiful critters. Learn how these 'fighting fish' can be peaceful and more in today's episode of BrainStuff. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

In 1920, before many women in the U.S. could even vote, a frontier town in Wyoming elected an all-women ticket into office. Learn about the Petticoat Rulers in today's episode of BrainStuff. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

We humans have lots of nicknames for dogs -- but how did 'Fido' become one of them? Learn about the history of the term in this episode of BrainStuff. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Goldfish can survive in icy lakes and your poorly cleaned aquarium in part because they make their own alcohol. Learn more about how goldfish work in this classic episode of BrainStuff. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

The Harlem Renaissance was a period of great social, intellectual, and artistic invention that deeply impacts our world to this day. Learn how it got started and why it was so important in this episode of BrainStuff. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Moths pollinate more of our food than researchers previously realized. Learn more about insect pollination in this episode of BrainStuff. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Popular music and video often use rain as a metaphor for melancholy, but does rainy weather really affect our mood? Learn about the psychology (or lack thereof) behind the rainy-day blues in this episode of BrainStuff. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

The Titanoboa cerrejonensis was a massive snake related to modern boas -- but it might've grown to 47 feet (14 meters) in length. Learn about this extinct South American serpent in today's episode of BrainStuff. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

The massive, historic Liberty Bell wasn't always cracked, and wasn't always named that. Learn what history knows (and doesn't know) about the Liberty Bell in this episode of BrainStuff. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

What we now call grandfather clocks were around for a long time before they got that name. Learn how a pop song renamed them -- and a few legends that may have inspired the song -- in this classic episode of BrainStuff. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

The Tyrannosaurus rex was a giant predator, but its arms weren't much bigger than a human being's. Learn a few hypotheses about T. rex's arms in this classic episode of BrainStuff. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Coal fires have burned beneath this Pennsylvania town for decades, driving away inhabitants with continual smoke, ash, and cave-ins. Learn how coal-seam fires work in this episode of BrainStuff. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Real vanilla is much more expensive than synthetic vanilla. Learn about the delicate orchid that vanilla comes from and why most vanilla flavoring is synthetic in this episode of BrainStuff. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

A new bill aims to make Washington, D.C. the U.S.'s 51st state -- but why wasn't it created as a state to begin with, and why have similar bills failed in the past? Learn the history of the District of Columbia in this episode of BrainStuff. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

The hellbender salamander isn't nearly as scary as it sounds. Learn why they're mostly harmless -- and some of their populations are in danger -- in this episode of BrainStuff. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

The 'Streisand Effect' is when some powerful entity tries to repress information, but winds up publicizing it instead. Learn the history of the term and how the effect works in this episode of BrainStuff. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

All humans eventually develop bags under our eyes -- but why? Learn how it happens -- and about some inexpensive, unobtrusive home remedies -- in this classic episode of BrainStuff.​ Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.