Communication Satellites
Once humans managed to put artificial satellites into orbit, the next question was, “what can we do with this?” One of the first applications of satellites, and still one of the biggest uses still tod...
25 Heinä 202215min
Great Zimbabwe (Encore)
Located near the city of Masvingo in Central Zimbabwe are the ruins of one of the greatest civilizations of the Middle Ages. When European explorers first discovered the ruins, they simply couldn’t b...
24 Heinä 202210min
The Rise and Fall of the Boeing 747
Introduced in 1968, the Boeing 747 totally revolutionized commercial air transportation. It was more than twice the size of the next closest passenger plane, and it brought air travel to a much wider ...
23 Heinä 202214min
Hyman Rickover and the Nuclear Navy
At the end of the second world war, a Captain in the United States Navy had a radical idea about the future of the American fleet. He felt that the largest American naval vessels, especially submarin...
22 Heinä 202213min
The History of the Compass
One of the most important inventions of early humans was the compass. The compass has aided human navigation around the Earth for centuries. Despite being a critical technology in the development of ...
21 Heinä 202213min
The Tragic Flight of Vladimir Komarov and Soyuz 1
Traveling to space is an inherently dangerous thing to do. In the first years of the space race, both the Soviet Union and the United States were fortunate in that none of their missions resulted in a...
20 Heinä 202213min
The Past, Present, and Future of Coal
Ancient people around the world all made a rather similar discovery. In certain places, they could find a black stone in the ground which could burn. For the most part, this combustible black rock too...
19 Heinä 202215min
The Colosseum
In the year 70, the Roman Emperor Vespasian commissioned what would become the world’s largest amphitheater. Approximately ten years later, it opened to great fanfare and 100 days of games. No great...
18 Heinä 202213min
