QWERTY Keyboard

QWERTY Keyboard

Transcript 150 years ago, an American inventor by the name of Christopher Latham Sholes developed a machine to allow people to easily put text onto paper by pressing mechanical keys. He called his invention the “type writer”. After years of tinkering and adjusting, he finally came up with an arrangement of the keys that worked. …

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How Many Continents Are There?

How many continents are there?

Transcript How many continents are there? That sounds like a really easy question. After all, there are only so many giant landmasses on the planet and we can easily count them with our fingers.  Yet, for something seemingly so simple, the answer to the question can be surprisingly complicated.  Learn more about the continents on …

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Andorra: The World’s Largest Co-Principality

Andorra: The World's Largest Co-Principality

Transcript Of all the world’s co-principalities, there is one which stands out due to its sheer size. This enormous co-principality dominates all other co-principalities in every measure: land area, population, and GDP. Every other co-principality could fit inside this co-principality with room to space.  Learn more about the nation of Andorra, the world’s largest co-principality, …

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The Red Ball Express

The Red Ball Express

Transcript There is an old adage about warfare that says “amateurs talk about strategy, whereas professionals talk about logistics”.  There is a great deal of truth to this statement.  While history books have given a great deal of attention to the D-Day landing at Normandy, what has been almost totally ignored is the incredible logistical …

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The St. Nazaire Raid

The St. Nazaire Raid

Transcript In 1942, two and a half years into the Second World War, the British were facing a problem. While the British Navy mostly commanded the Atlantic, the Germans had one significant advantage. The battleship Tirpitz, the largest European military warship ever created at that time by total tonnage.  Rather than attack the Tirpitz head-on, …

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DEFCON Levels

DEFCON Levels

Transcript Historically, an army could have days, weeks, or even months to prepare for war.  However, with the development of intercontinental missiles and nuclear weapons, the time for preparation was reduced to hours or even minutes.  In light of these changes, it was necessary to develop a system that allowed for rapid mobilization and readiness.  …

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A History of Vaccines

A History of Vaccines

Transcript Right now vaccinations are all over the news. There are many companies that have developed vaccines for COVID-19 and there is a good chance that most people in the world will wind up getting a vaccine in the next year or two.  Many of you may never have given much thought to what is …

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Operation Plumbbob

Operation Plumbbob

Transcript In 1957 the United States embarked on its most controversial series of nuclear tests. These tests took place on US soil in the state of Nevada.  They detonated 29 devices and tested a wide number of things, including how blasts would damage builds, pigs, and soldiers. They detonated bombs on towers, from balloons, and …

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Why Don’t We All Drive On The Same Side of the Road?

Why Don't We All Drive On The Same Side of the Road?

Transcript Standards make everything easier. When everyone can agree on a standard way to do things, regardless of how it is done, it can reduce confusion and facilitate progress. You’d think if there was one thing that would be standardized everywhere, it would be the side of the road everyone drives on. I mean, there …

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