The history of musical pitch. Many of us assume that musical pitch has always been gauged at the same level but this is not the case. Concert pitch is the pitch reference to which a group of musical instruments are tuned for a...

Kids will enjoy continuing their Mandarin Chinese lessons with Mandarin Chinese for Kids. It takes your child on an unforgettable learning journey with Billy and his cuddly dog, “Benboo”. Along the way, your child will learn words and...

The Nutcracker. A story that spawned a thousand childrens books and countless adaptations for the stage, and then eventually made it to the silver screen. But, the origins of the Nutcracker isn’t the history of one nutcracker story. In...

We often see accidentals in music but they have different significance depending on the context. Accidentals might be flagging up a key change, or they might be decorative chromatic notes, or they might be signifying a minor key, or they...

The Limb of the Sun

In 1935, researchers found that after removing the frontal lobes of two chimps, they no longer experienced frustration or anxiety. Neurologist Egas Moniz believed that replicating this in humans could cure mental illness— leading to one...

This video demonstrates how to add Bootstrap classes and styling to your webpage.
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This clip is from the chapter "Exploring Rapid Web Design with the Bootstrap 4 Frontend Framework" of the series "Modern Web Design with HTML5,...

Formally or informally, human societies across place and time have made rules to bind and dissolve couples. The stakes of who can obtain a divorce, and why, have always been high. Divorce is a battlefield for some of society's most...

Learn how to solve absolute value equations with multiple steps. Absolute value of a number is the positive value of the number. For instance, the absolute value of 2 is 2 and the absolute value of -2 is also 2. To solve an absolute...

Documentation & Deploy: Domain, SSL & Wrap Up<br/<br/>>

This clip is from the chapter "Documentation & Deploy" of the series "Node.js API Masterclass with Express and MongoDB".null

Just the Facts: The Emergence of America Uses fascinating historical footage to explore six decades thats shaped Modern America. The series examines the Gilded Age in the late 19th century, the Progressive Era of the early 20th century,...

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Jeffrey Ogbonna Green Ogbar was born in Chicago and raised in Los Angeles, California. He received his BA in History from Morehouse College in Atlanta. He earned his MA and Ph.D. in U.S. History with a minor in African studies from...

Up until the 20th century, people assumed light behaved like a wave, passing through the "aether wind"--a fluid with incomprehensible properties. When the Michelson-Morley experiment disproved the aether's existence, Einstein put out the...

Turns out humans aren't the only animals that can medicate themselves - many other animals have found ways to deal with illness by using natural remedies. Hank will tell you about some of the most interesting methods animals have found...

In the early 20th century, the US had expanded from coast to coast, but many cities in the southwest still lacked reliable water sources. The Colorado River's erratic flow and frequent floods made it unreliable for agriculture, and the...

In the early 20th century, Alfred Wegener's theory of Continental Drift laid the foundation for our modern theory of plate tectonics. And today we know something even more exciting: Pangea was only the latest in a long lineage of...

Learn the parts of a plant

Just the Facts: The Emergence of Modern America: The Progressive Era uses fascinating historical footage to explore six decades that shaped modern America. The series examines the Gilded Age in the late 19th century, the Progressive Era...

Jeffrey Ogbonna Green Ogbar was born in Chicago and raised in Los Angeles, California. He received his BA in History from Morehouse College in Atlanta. He earned his MA and Ph.D. in U.S. History with a minor in African studies from...

National Archives: This month’s clip is titled ‘Miss Ella Shields’ and shows a 1930 performance of male impersonator Ella Shields singing ‘Adeline’. Ella Shields was one of a number of women in the late 19th and early 20th centuries who...

How the kids helped a little bunny who is scared of dark

Value of a Business Degree

This week on Blockchain Central: we will uncover the science behind the proof of work mechanism - the most popular and one of the most secure in blockchain ecosystem.