Podcast Transcript Every year the last Friday in April in the United States is Arbor Day. Arbor Day is not the sexiest holiday on the calendar. I don’t think anyone listening is getting the day off from work, and you don’t see used car dealerships offering Arbor Day sales. Nonetheless, for over 150 years, Arbor …
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, immutably governs how we can send rockets into space. The variables in his equation have determined everything surrounding spaceflight and rocketry since its inception and …
Podcast Transcript At the start of the 20th century, the world’s third-largest lake was located in Central Asia. It had been known to the people of the Asian steppes for thousands of years. However, by the end of the 20th century, the lake had all but disappeared. Somehow, over the course of a century, one …
Podcast Transcript Every year on April 25, Australia and New Zealand celebrate a holiday that is unique to those two countries. It is one of the most important days on the calendar, and it was created to celebrate an event that took place over 100 years ago. Today the holiday has taken on a broader …
Podcast Transcript As long as humans have looked up in the sky, they noticed something. There was an unusually bright star that would show up in the early morning or early evening. This star was one of the few points of light in the sky that moved. They were dubbed planets, and the one that …
Podcast Transcript The English language is full of very quirky idioms and phrases. Every language has them, and these are just some of the things which make each language unique. Most native speakers of English may use these idioms and phrases all the time, even though they have no idea where they came from. For …
Podcast Transcript Sometime in the 15th century, a drink became popularized in the Arabian peninsula. It was dark, bitter, and people couldn’t get enough of it. From its simple origins, over the centuries, it has spread around the world to become one of the most popular beverages in history. Today you can find it being …
Podcast Transcript After the end of the second world war, Berlin was a divided city controlled by the four major allied powers. Despite the different zones of control, people could move freely between them. However, on August 13, 1961, the East German government decided to end the free travel of Berliners by building a wall …
Podcast Transcript For hundreds of thousands of years, humans lived a nomadic life, hunting for game and foraging for food. Then, several thousand years ago, they stopped. They began domesticating animals, started growing crops, and lived a sedentary lifestyle. The question anthropologists have asked is, why? Learn more about the rise of agriculture, aka the …