Episode – 1939 : Challenger Deep and the Mariana Trench Podcast Transcript Located in an arc sweeping to the east and south of the Marina Islands and Guam is the […]
Episode – 1934 : The Younger Dryas
Episode – 1934 : The Younger Dryas Podcast Transcript Around 12,900 years ago, the last ice age was ending. Things were warming up, and the glaciers were starting to recede.…and […]
Episode – 1898 : Dendrochronology
Episode – 1898 : Dendrochronology Podcast Transcript One of the most essential aspects of archeology is dating objects from the past, and one of the most critical tools in dating […]
Episode – 1846 : Madagascar
Episode – 1846 : Madagascar Podcast Transcript Located off the Southeastern coast of Africa is the island nation of Madagascar. It is a massive island nation known for its beautiful […]
Episode – 1837 : Australian Wildlife
Episode – 1837 : Australian Wildlife Podcast Transcript Australia is unique among the countries in the world. It is a continent, a country, and an island all wrapped up into […]
Episode – 1836 : Costa Rica
Episode – 1836 : Costa Rica Podcast Transcript Located in the heart of Central America is the Republic of Costa Rica. Costa Rica is situated between Panama and Nicaragua and […]
Episode – 1816 : The Republic of Ghana
Episode – 1816 : The Republic of Ghana Podcast Transcript Located in the heart of West Africa is the nation of Ghana. Ghana is a medium-sized country in terms of […]
Episode – 1810 : Grass and Lawns
Episode – 1810 : Grass and Lawns Podcast Transcript One of the most common types of plants in the world is grass. Grass is almost everywhere. An enormous part of […]
Episode – 1807 : Desalination
Episode – 1807 : Desalination Podcast Transcript Seventy percent of the Earth’s surface is covered with water… and the vast majority of it is useless for consumption or agriculture. This […]
Episode – 1791 : Questions and Answers: Volume 31
Episode – 1791 : Questions and Answers: Volume 31 Podcast Transcript The month of June comes from the Latin word Iunius, which is derived from the Roman goddess Juno. Juno […]
Episode – 1763 : A Brief History of Australia
Episode – 1763 : A Brief History of Australia Podcast Transcript Australia is a unique country. By area, it’s huge. By population, however, it is dwarfed by smaller countries such […]
Episode – 1743 : Platinum, Palladium, and Rhodium: The Other Precious Metals
Episode – 1743 : Platinum, Palladium, and Rhodium: The Other Precious Metals Podcast Transcript When I say precious metals, most of you probably immediately think of gold and silver. Historically, […]
Episode – 1722 : The Columbian Exchange
Episode – 1722 : The Columbian Exchange hr class=”wp-block-separator has-alpha-channel-opacity”/> Podcast Transcript In 1492, Christopher Columbus landed in the New World. He wasn’t looking for it, and, in fact, he […]
Episode – 1719 : The History of Whaling
Episode – 1719 : The History of Whaling hr class=”wp-block-separator has-alpha-channel-opacity”/> Podcast Transcript Whaling is something that humans have engaged in for thousands of years. For most of that time, […]
Episode – 1705 : Hydropower
Episode – 1705 : Hydropower Podcast Transcript For thousands of years, humans have used the power of water to do work for them. At first, it was very simple, then […]
Episode – 1694 : Land Reclamation: How the Dutch Made Land from the Sea
Episode – 1694 : Land Reclamation: How the Dutch Made Land from the Sea Podcast Transcript The Netherlands is unlike any other country on Earth. What sets the Netherlands apart […]
Episode – 1679 : Natural Gas Explained: Past, Present, and Future
Episode – 1679 : Natural Gas Explained: Past, Present, and Future Podcast Transcript One of the most common and versatile forms of energy in the world is natural gas. Natural […]
Episode – 1653 : Famines
Episode – 1653 : Famines Podcast Transcript One of the most devastating disasters that has afflicted humanity are famines. Unlike other natural disasters, famines do not have a single cause. […]
Episode – 1642 : Lions
Episode – 1642 : Lions Podcast Transcript Lions are one of the most respected animals in the animal kingdom. They are called the king of the jungle (even though they […]
Episode – 1623 : Sand
Episode – 1623 : Sand Podcast Transcript One of the most common substances on Earth is sand. Most people don’t think very much about sand, but sand is an extremely […]




















