In this video, we will learn about the $or Operator.
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This clip is from the chapter "Query and projection operators" of the series "MongoDB—Mastering MongoDB for Beginners (Theory and Projects)".In this section, we will cover...

In this video, we will learn about the $nin Operator.
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This clip is from the chapter "Query and projection operators" of the series "MongoDB—Mastering MongoDB for Beginners (Theory and Projects)".In this section, we will cover...

A machine that's capable of performing complex tasks on its own, often under computer control.
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A Twig Science
Glossary Film.
Key scientific terms defined in just 60 seconds using stunning images and concise...

Spiderwebs are designed to trap bug-sized creatures. So how come spiders don’t get stuck? Hosted by: Hank Green ---------- Dooblydoo thanks go to the following Patreon supporters -- we couldn't make SciShow without them! Shout out to...

During the Revolutionary War, food was often at the center of the clash between the American colonists and the British. From the Boston Tea Party to coffee riots, Americans used food to express their anger at the British. Others stocked...

In which John Green teaches you about the American Revolution. And the Revolutionary War. I know we've labored the point here, but they weren't the same thing. In any case, John will teach you about the major battles of the war, and...

Animals that at least at some stage in their development possess a stiff, rod-like structure running along their back, called a notochord.
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A Twig Science
Glossary Film.
Key scientific terms defined in just 60...

The American Revolution was a turning point in history. After years of conflict followed by open warfare, Great Britain's North American colonies became a new, independent nation - the United States of America! This educational video for...

In the late 17th century, French monarchs were expected to keep mistresses, and Louis XIV was no different. In fact, throughout his reign, he would go on to father over 12 illegitimate children. From the Series: Private Lives of...

The ocean is a sponge for all the greenhouse gas emissions we produce, and entire aquatic ecosystems are beginning to collapse. Off the coast of California, the disappearing abalone population is raising flags about ocean health and the...

The Kiboomers! Brahms Lullaby! Baby Sleep Music! ★Get this song on iTunesf='https://itunes.apple.com/us/album/toddler-lullaby-songs/id668951001' target='_blank' rel='nofollow'>iTunes Watch our ‘Brahms Lullaby’ video and send your...

In poet Lawrence Lipton’s imaginings, Renaissance-era mathematician Giordano Bruno visits 20th-century Venice, California. The poet's vivid imagery links Renaissance Italy (where Bruno was persecuted by the Inquisition) and also gives us...

Did you know that women were a big part of running a British encampment during the Revolutionary War? Reenactors Jane Pease and Christian Howlett are 18th-century reenactors who portray the live of two women in a British encampment. In...

A WW1 nurse talks about her first experience of dressing a gangrene wound and the limited pain relief available

The drafting and adoption of the United States Constitution recalled many of the high ideals of liberty and freedom that were espoused during the Revolutionary War. But the compromises that were made to get all of the new states on board...

A layer in the Earth's atmosphere at 13 to 20km altitude with an unusually high concentration of ozone gas.
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A Twig Science
Glossary Film.
Key scientific terms defined in just 60 seconds using stunning images and...

In this educational video, we explore the events leading up to the American Revolution and the formation of a democratic government in the United States. We delve into the French and Indian War, the Stamp Act, and the Boston Tea Party,...

In this educational video, we explore the events leading up to the American Revolution and the establishment of a democratic system in the United States. From the French and Indian War to the Stamp Act and the Boston Tea Party, we delve...

Do you know what lies deep below New York's Grand Central Terminal? Almost no one who passes through every day has any idea what is underneath their feet. | For more World's Strangest,