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Apr 2025
13m 27s

A History of Lead (Encore)

Gary Arndt | Glassbox Media
About this episode
Sometime around eight to nine thousand years ago, ancient people in Asia Minor found a very dull grey metal that turned out to be easy to manipulate when it was heated. For thousands of years, it was used for a variety of purposes, including as a food additive.  4 With the advent of the Industrial Revolution, even more uses were found for this unique metal. ... Show More
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Today
Imperial Units of Measure
Almost every country in the world uses the metric system…..almost. There are still a few stragglers, like the United States, who use units handed down to them from the British. These are known as Imperial Units. These units often confuse those living in countries that use the m ... Show More
17m 56s
Yesterday
Roller Coasters
For over a century, people have enjoyed the thrill of visiting an amusement park and riding roller coasters. The very first thing we can point to and call a proto-roller coaster had neither rollers nor did it coast. It was more of a slide. Over time, Roller coasters have evolv ... Show More
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Nov 24
The Paraguayan War (Encore)
In the 1860s, one of the bloodiest wars in the Western Hemisphere took place….and it wasn’t the US Civil War.  It was a war between Paraguay and an alliance of Uruguay, Argentina, and Brazil, and it was one of the bloodiest ever fought in Latin America. It was a conventional wa ... Show More
15m 50s
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