Wheel, A circular object used for movement and transportation. It was invented by Ancient Mesopotamians., Paper, A material used for writing and printing. It was invented by Cai Lun., Compass, A tool used for finding direction. It was invented by Ancient Chinese inventors., Printing Press, A machine used for printing books and texts quickly. It was invented by Johannes Gutenberg., Clock, A device used to measure and show time. It was invented by Yi Xing., Telephone, A device used for voice communication over distance. It was invented by Alexander Graham Bell., Light Bulb, An electric device that produces light. It was invented by Thomas Edison., Radio, A device used for wireless audio communication. It was invented by Guglielmo Marconi., Television, A device used for watching moving images and sound. It was invented by John Logie Baird., Camera, A device used for taking photographs or videos. It was invented by Louis Daguerre., Bicycle, A two-wheeled vehicle powered by pedals. It was invented by Karl Drais., Automobile, A motor vehicle used for transportation. It was invented by Karl Benz., Airplane, A flying vehicle with wings and engines. It was invented by The Wright Brothers., Computer, An electronic machine used for processing information. It was invented by Charles Babbage., Internet, A global network connecting computers worldwide. It was developed by many scientists, including Tim Berners-Lee., Smartphone, A mobile phone with internet and computer functions. It was invented by Martin Cooper., Refrigerator, A machine used for keeping food cold and fresh. It was invented by William Cullen., Washing Machine, A machine used for washing clothes automatically. It was invented by Alva J. Fisher., Microwave Oven, A machine used for heating and cooking food quickly. It was invented by Percy Spencer., Vacuum Cleaner, A machine used for cleaning dust from floors and carpets. It was invented by Hubert Cecil Booth., Sewing Machine, A machine used for stitching fabric and clothes. It was invented by Elias Howe., Calculator, A device used for mathematical calculations. It was invented by Blaise Pascal., Battery, A device that stores electrical energy. It was invented by Alessandro Volta., Elevator, A machine used for moving people or goods between floors. It was invented by Elisha Otis., Steam Engine, A machine powered by steam for transport and industry. It was improved by James Watt..
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INVENTIONS
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