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James Hargreaves invented the Spinning Jenny. This allowed people to spend hundreds of threads at once and make fabric.
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Charles Townshend created a new method of farming: the four-crop rotation system. This enabled farmers to use all of their land instead of only 3/4. It also helped replenish the soil by changing which crops were in each field.
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Richard Arkwright invented the water frame. It changed the way we access energy, but it also required many resources and labor.
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James Watt invented the Watt steam engine. There had been early models of a steam engine but this was by far the most popular, successful, and practical.
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Eli Whitney invented the Cotton Gin. The machine made it a lot quicker to separate the seeds and fiber of cotton.
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Alessandro Volta invented the Voltaic Pile, an early form of the electric battery. This enabled energy in batteries to be stored and used later. It was a much more practical method of using batteries.
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Joseph Marie Jacquard invented the Jacquard machine. He created a loom that simplifies the manufacturing process of textiles.
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George Stephenson invented his "Rocket" which was an early steam locomotive. These were useful in shipping and travel.
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Samuel Morse invented a system of communication known as the Morse Code. It created a pattern of dots and lines which correlate with each letter in the alphabet. This allowed people to send telegraph messages.
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Louis Daguerre created an early form of photography: the Daguerreotype. Not only did it allow people to take accurate pictures, but it also became commercially available thanks to mass production.
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Henry Bessemer invented the Bessemer process. This is a system that makes steel out of pig iron. It was successful because it was inexpensive and it made steel a more available resource.
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Alexander Graham Bell invented the telephone. The first call ever made was to his assistant Mr. Watson who was in another room.
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Thomas Edison invented a plethora of useful tools, most notably the incandescent light bulb.
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Gottlieb Daimler invented the Grandfather Clock. It was important to keep time with work schedules with the switch from working on farms to working on shifts.
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Guglielmo Marconi invented the radio. He was able to transmit sounds through electromagnetic waves.