Transcript American history isn’t a single linear story. There are periodic changes to the political order where political parties and affiliations are reordered. According to political scientists, there have been six different political eras in American history. Each era was a reflection of issues that confronted the country at the time. Learn more about America’s …
Transcript In April 1920, two men who were delivering the payroll to the Slater-Morrill Shoe Company in Braintree, Massachusetts were killed in broad daylight. The payroll was taken by the killers, and they jumped into a getaway car. A few weeks later, two Italian immigrants with known ties to radical anarchist groups were arrested for …
Transcript According to legend, in 1945 an engineer by the name of Perry Spencer was working in front of an active radar installation. As he was working, he noted that a candy bar that he had in his shirt pocket started to melt. His investigation into the phenomenon resulted in a new technology that has …
Transcript Have you ever known someone who was really cheap? Like they would wear clothes until they disintegrated? Or they would never pick up the tab? Or maybe they are horrible tippers? Well, there is cheap and then there is cheap. Some people are so cheap that they appear to live in destitute poverty, even …
Transcript When the space race first began, scientists didn’t even know if it was possible for humans to eat in a zero-gravity environment. Once they figured out it was possible, it didn’t mean that it wasn’t without problems. There was a host of issues with eating in a zero-g environment that had to be overcome. …
Transcript In the early 15th century, just before Europe began its Age of Exploration, China was embarking on a series of voyages that put to shame anything anyone in Europe would do for centuries. These voyages were led by a man who was the greatest admiral in history up to that point and the ships …
Transcript Video games have become ubiquitous in today’s world. Most of us probably have some sort of computer game on our smartphone, as well as games on our desktop computer, and you might even have one or more dedicated computing devices dedicated solely to playing games hooked up to your TV. The massive $100 billion …
Transcript One of the interesting things about temperature is that no matter how cold you’ve ever been, or how low of a temperature anyone has ever achieved, you can always get colder, if only by a little bit. That is because temperature has an absolute barrier that can never be broken. Learn more about absolute …
Transcript In 1990, filmmaker Peter Brosnan set out to find a legendary Egyptian city that was lost to time and buried under sand dunes. After years of battling local officials, he finally was given the approval to begin an archeological dig. What he found were 35-foot tall statues of the Pharoah Ramses II and enormous …