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[1] Why do newspapers print a combination of four dots - blue, pink, yellow, black - at the bottom of each page? [Vote Average: 3, Total Votes: 13, Hits: 285]
Tags:
Print alignment, Registration marks used during printing, Offset printing technology, Multi-coloured image, Printing surface, Rubber blanket, Newspaper, News, Media, Printing
[2] Why is the Ball-point Pen Called So? [Vote Average: 3, Total Votes: 387, Hits: 2491]
Tags:
Medieval Europe, Hungarian Journalist, Newspaper Printing, Ball Point Pen, World War II, British Air Force
[3] Who first traced the course of the Congo? [Vote Average: 3, Total Votes: 56, Hits: 1951]
[4] How was Tutankhamen's tomb discovered? [Vote Average: 3, Total Votes: 85, Hits: 2727]
[5] Which European discovered the Victoria Falls? [Vote Average: 3, Total Votes: 48, Hits: 2150]
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