Transcript On July 20, 1976, Viking 1 became the first robotic lander to land on Mars. On September 3, its sister Viking 2 followed suit. Both of them carried experiments to test for biology on Mars, something which no subsequent Mars lander since has replicated. The results from these chemical experiments have divided researchers for …
Transcript I’m guessing that almost everyone listening to this podcast has, within the last 24 hours used a zipper. They are ubiquitous at this point and most people have never given them much thought. Yet, its invention was a rather inspired leap of creativity and required the development of several other technologies before it could …
Transcript Hedy Lamarr was one of the most beautiful women in the world. She was a Hollywood star who appeared in films with the likes of Clark Gable and Spencer Tracey. But she was much more than just a pretty face. She was also an inventor who created one of the technologies which have helped …
Podcast Transcript The United States has created many cultural institutions which have spread around the world. People all over the Earth have enjoyed and benefited from rock and roll, Hollywood films, and the Internet. However, we’ve also created some things that have spread to other countries which, to be totally honest, are probably not our …
Podcast Transcript In 1778, in the middle of the Revolutionary War, while camped outside New York City, General George Washington and Major Benjamin Tallmadge hatched a plan. They created a network of spies that would provide information about British military effort, which could be used by the colonists in fighting the war. It turned out …
Podcast Transcript I’ve had many episodes where I talked about a country being a “republic”. In fact, we often use the word but many people have a mistaken idea about what exactly a republic is. So what exactly is a republic, and how does it differ from a monarchy or other forms of government? What …
Podcast Transcript They are some of the most devastating natural disasters on Earth. They can strike without warning, or sometimes you might have several hours’ notice. Their effects can be limited to small areas, or they can devastate communities on opposite sides of the world. They have killed hundreds of thousands of people and have …
Transcript Sometimes the smallest things can make the biggest impact. There is no better example of this in the modern world than the Intermodal Container, aka the shipping container. You’ve probably seen them on ships, trains, and trucks, and believe it or not, these rectangular metal boxes are responsible for the entire modern economy. Learn …
Podcast Transcript According to the records of the Catholic Church, there have been 266 men who have been pope. However, for centuries it was thought that there was another pope not on the list that was different from all of the others. What made this pope different is that the pope was a woman. Learn …