Why Are Manchester United Called the Red Devils?

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Manchester United’s “Red Devils” nickname came from nearby Salford’s rugby league team and was adopted under manager Sir Matt Busby in the 1960s. The connection links two different sports through a shared local nickname. UEFA’s account traces Salford’s name to a French journalist who called the team “Les Diables Rouges” in 1934. That phrase means “the Red Devils.” UEFA says Busby later took a liking to the name. The Premier League’s crest history also credits him with adopting it from Salford. The nickname became a visual part of United’s identity: its badge includes a red devil holding a pitchfork below a three-masted ship. The ship has a separate origin in Manchester’s coat of arms and trading history. A single crest therefore combines a symbol of the city with a nickname borrowed from its sporting neighbourhood.  
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How do Eyes Work?

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We see with our eyes. Our eyes are lodged into the bony sockets in the skull. The muscles in the socket turn them so that we can see in any direction. Each eye is a fluid-filled sphere with a transparent window at the front, known as the cornea. Pupil is a small hole in the centre and behind it, is the coloured iris. A convex lens is present behind the iris. In the rear part of the eye is a screen called retina. Millions of receptor cells called rods and cones make up the retina. Rods are sensitive to dim light and are used for black and white vision. Cones respond to bright light and can detect colour. Retina is connected to the brain by the optic nerve. The lens and retina have a fluid in between known as aqueous humor. Light rays from an object fall on the cornea of our eyes and when these rays pass through it, they are bent so that they pass through the pupil and into the lens. The light rays are bent again as they pass through the lens and they are focused into the retina to form an inverted picture. The picture reaches the brain through the optical nerve. The brain again inverts the picture and we see the object. This whole process is very fast. Too much light can damage the retina, so in bright light, the pupils get small.

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