The history of aviation is packed full of amazing aircraft, used both commercially and in military operations. How much do you know about these magnificent flying machines?
Various scales and charts have been developed to measure everything from the pungency of peppers to the intensity of earthquakes. Test your knowledge of some of them with these multiple choice questions...
Many of history’s greatest inventors have become household names. See how much you know about these pioneers who changed the world with their inventions.
Over the last two centuries, advances in computer technology have transformed the way we live our lives. How much do you know about these icons of the industry?
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