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Apollo 1 Tragedy

In 1967, the Apollo 1 mission ended before it ever launched. During a routine ground test, a fire broke out inside the command module, killing astronauts Gus Grissom, Ed White, and Roger Chaffee. The cabin’s pure-oxygen atmosphere and inward-opening hatch left the crew with no chance to escape.

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The Spine

The human spine is made up of 33 vertebrae (24 moveable and 9 fused) stacked to support movement and protect the spinal cord. There are 7 cervical (neck), 12 thoracic (upper back), and 5 lumbar (lower back) vertebrae — these 24 are movable. Below them sit the sacrum (5 fused) and coccyx (4 fused), forming a stable base.

Internet vs Web

The internet, developed in 1969, is the global network connecting computers, while the web, invented in 1989, is a way to access information on that network using websites and browsers. Think of the internet as the highway system, and the web as the cars driving on it.

* This topic has been previously featured. Spaced repetition improves your learning by helping you retain information for longer.

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Elephant Species

There are 3 living species of elephants, with 3 commonly recognised subspecies:

Alexander Graham Bell

In 1876, Alexander Graham Bell, the inventor of the telephone, made the world’s first successful phone call. The first words ever spoken weren’t dramatic — just practical: “Mr. Watson, come here, I want to see you.” Said to his assistant in the next room, the moment launched modern voice communication.

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Andy Warhol

was a key figure in Pop Art, best known for turning everyday objects and celebrity faces into art through repetition and bold colour. His Campbell’s Soup Cans series became one of the most recognisable artworks of the 20th century, blurring the line between art, advertising, and pop culture.

How long did KUWTK run for?

Keeping Up with the Kardashians ran for 20 seasons from 2007 to 2021.

* This topic has been previously featured. Spaced repetition improves your learning by helping you retain information for longer.

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