Episode – 1196 : The Speed of Sound Podcast Transcript Sound travels fast. Very fast. However, it is not so fast that we can’t recognize that it has a finite […]
Episode – 1193 : The World’s Oldest Things
Episode – 1193 : The World’s Oldest Things Podcast Transcript People are fascinated by extremes. We are interested in the biggest, strongest, fastest, and tallest. I’m certainly no exception. One […]
Episode – 1180 : Nitrogen
Episode – 1180 : Nitrogen Podcast Transcript If aliens were to look at the Earth through a telescope from far away and analyze our atmosphere, they would find that the […]
Episode – 1177 : How Blockchains Work
Episode – 1177 : How Blockchains Work One of the biggest innovations in computing over the last several years has been the blockchain. There have been a host of companies […]
Episode – 1147 : Bricks
Episode – 1147 : Bricks Podcast Transcript There is a good chance that every day, you encounter bricks. You might drive on them, walk on them, and live inside them, […]
Episode – 1136 : Antimatter
Episode – 1136 : Antimatter Podcast Transcript It is the most expensive substance in the world by a wide margin. When it was first proposed, it was actually proposed in […]
Episode – 1134 : Project Orion
Episode – 1134 : Project Orion Podcast Transcript In the years immediately following the end of the Second World War, several of the scientists who took part in the Manhattan […]
Episode – 1121 : Space Elevators
Episode – 1121 : Space Elevators Podcast Transcript You’ve probably seen footage of a rocket launch. There is a bunch of smoke and fire as the rocket lifts off to […]
Episode – 1119 : Betamax vs. VHS
Episode – 1119 : Betamax vs. VHS Podcast Transcript In the late 1970s and early 1980s, a war erupted in the world of video technology.Two competing video tape formats fought […]
Episode – 1104 : Titanium
Episode – 1104 : Titanium Podcast Transcript Titanium is the ninth most abundant element in the Earth’s crust. However, titanium is not even remotely close to the ninth most common […]
Episode – 1083 : The Large Hadron Collider
Episode – 1083 : The Large Hadron Collider Podcast Transcript Straddling the border of Switzerland and France is the largest scientific instrument ever created. It sits in a tunnel 27 […]
Episode – 1072 : Iron
Episode – 1072 : Iron Podcast Transcript Located at the 26th place on the periodic table is the element iron. Iron is one of the most important elements in the […]
Episode – 1062 : Questions & Answers: Volume 7
Episode – 1062 : Questions & Answers: Volume 7 Podcast Transcript In June of every year, the sun has its solstice. In the north, the days are long; in the […]
Episode – 1045 : The Most Dangerous Substances in the World
Episode – 1045 : The Most Dangerous Substances in the World Podcast Transcript There are a great many chemicals that are dangerous to work with. Things that you wouldn’t want […]
Episode – 1457 : Thorium (Encore)
Podcast Transcript Located in the 90th place on the periodic table is the element Thorium. Thorium, as with every element, has unique properties, making it useful in certain applications. However, […]
Episode – 1041 : Thorium
Episode – 1041 : Thorium Podcast Transcript Located in the 90th place on the periodic table is the element Thorium. Thorium, as with every element, has unique properties, making it […]
Episode – 1036 : The International Space Station
Episode – 1036 : The International Space Station Podcast Transcript Even before humans first went into orbit, there had been dreams of establishing a permanent presence in space. For almost […]
Episode – 1607 : The Tyranny of the Rocket Equation (Encore)
Podcast Transcript In 1897, the visionary Russian rocket scientist Konstantin Tsiolkovsky discovered an equation that governed how rockets worked. His equation, which was independently discovered by several other rocket scientists, […]
Episode – 1495 : Fingerprints (Encore)
Podcast Transcript Located on the tips of our fingers are features known as friction ridges. We evolved them to get a better grip on objects. It just so happens that […]
Episode – 1009 : Fingerprints
Episode – 1009 : Fingerprints Podcast Transcript Located on the tips of our fingers are features known as friction ridges. We evolved them to get a better grip on objects. […]


















