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Paper currency was a huge breakthrough. It was the time a single peace of paper was created and represented money instead of carrying around heavy coins or something else of worth
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As steel had been invented and was used and still is used widely throughout the world its a strong yes cheap material and very common. It can be used to build different things and so when they started construction with it they realized it had value and was strong and cheap.
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The compass uses a magnetic field its surrounded by and has two ends. One of the ends usually the red one is attracted to the magnetic field creating a compass that is always pointing North
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Magnifying lenses was created so that we cold see both certain things up close and personal and see things that are far away creating telescopes and such
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The printing press was like a modern day printer where you would type something and it would put it on a peace of paper and it looked neat and not poorly written
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They have developed a steam water pup that would be able to power many things and it what got us to where we are today. It created trains and started the industrial revolution and is what make England and the United States super powers
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Thomas Edison had created the light bulb which would be put into a certain area and a heat current would be emitted through a wire creating a bright light source using a electric current
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The telegraph was one of the first major forms of communication. This came before the telephone and would send bits of morse code through out certain frequencies that could be achieved to receive messages
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A cotton jin is what would shape the early years of America. It is was provoked slavery less and helped some get out of work and started what would create a new machine that would be used widley and would seperate cotton from cotton seeds
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A transistor creates and allows control of electric currents through circuit boards
