The History of Tea
Sometimes over 3000 years ago, somewhere in Southwestern China, a leaf from the Camellia sinensis plant accidentally found its way into a pot of boiling water. Noticing that the leaf had turned the w...
8 Elo 202313min
Route 66
In the early 20th century, as automobiles became more and more popular, the need for a national system of roads in the United States became more evident. One of the suggested roads connected the city...
7 Elo 202312min
The WOW! Signal
On August 15, 1977, for a period of 72 seconds, the Search for Extraterrestrial Intelligence had its greatest moment. A signal was received like none other before or since. However, in the over 45 y...
6 Elo 202313min
Questions & Answers: Volume 9
As I do every month, I went to the Temple of Jupiter Capitolinus to meet with the Augurs. I met an old priest, and I asked him, “Quo die est felicissimum?” He looked at a flock of birds that appeared ...
5 Elo 202311min
Ancient Colors (Encore)
When people from prehistory created the first works of art on the walls of caves, they used the colors that they found around them. Almost all of the early cave art is drawn in black or dark red. As ...
4 Elo 202310min
Singapore
Located at the narrowest point in the Strait of Malacca, one of the most strategically important points on Earth is the nation of Singapore. Singapore is unlike most other countries in the world for a...
3 Elo 202313min
Permutations and Combinations
Whenever there is a lottery, the odds of winning are given. If you go to a pizzeria, they might tell you the number of possible pizzas that can be made, given their toppings. If you have a combinati...
2 Elo 202315min
Space Elevators
You’ve probably seen footage of a rocket launch. There is a bunch of smoke and fire as the rocket lifts off to begin its flight to achieve an altitude and velocity which will get it into orbit. It wo...
1 Elo 202314min
