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The idea of using steam to make machines go. If it worked, more machines will be able to go and work.
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Spins more than one ball of yarn or thread at a time. It made it easier and faster to make cloth or clothes.
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Makes it much easier to separate cotton seeds from the cotton fiber. Reduces the time to clean cotton and helped southern states make more money.
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Allows messages to be sent quickly over a wire. Telegraph wires stretch from the east coast of the U.S. to the Mississippi River.
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People had to make their own clothes or pay someone. Now clothes can be made in factories and industries.
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People worried about elevator cars falling or dropping. Made people feel more confident about elevators.
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Safer way to blast out holes in mountains or the ground. It's more important in clearing paths for building things such as railroads.
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Germs caused disease. Helped prevent many common diseases.
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First to get patent for it. Being able to speak to people through a phone wire.
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Lasted longer than other light bulbs. Allowed people to do many things at night.