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Leeuwenhoek is credited with being a microscopist who was the first person to see and examine bacteria and protozoa. His examinations helped start off the branches of bacteriology and protozoology. Also, he created the lenses himself and created around 500.

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I think Leeuwenhoek's impact was strong because his research helped us know that everything is made up of things so much smaller than us. He helped start branches of science and study and found bacteria. With the new ability to examine bacteria people could create medicine and something to kill it and stop disease.

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Paracelsus is credited with throwing out the old ideas and establish the role of chemistry in medicine. He knew the old ways didn't work and he developed a more modern solution

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I think Paracelsus' impact was strong in medicine because he got rid of the old ideas and help develop some of the early real medicine. Without his research our world still might be in a stage of bloodletting or any of the other old solutions. He helped pave the way for millions of scientists and doctors to research more and more about medicine.

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Harvey is credited with discovering how circulation in the body works and how the heart works, mainly how it acts like a pump. He did this by dissecting a lot of animals and learned that the heart has valves and connections.

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Harvey's research helped lots of people and I would think mainly doctors. They were able to learn how the heart works and how vital is and his research helped them with further research. His examinations kind of told them where to and where not to make incisions in the body.

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This thermometer uses water to measure temperature. It wasn't very accurate but it was close. It worked by having different mass bulbs in water that each had temperature numbers on them. By the power of buoyancy which ever bulb was lowest, that was the temperature it was. The invention allowed further tampering and improving upon.

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This early type of thermometer wasn't completely accurate or easy to make. Mainly, it was an idea and prototype of something that could be more. It allowed other scientists to improve and innovate with it further. It eventually became something that we rely on today.

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Invented In 1644 By Evangelista Toricelli

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Invented In 1644 By Evangelista Toricelli

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This early type of barometer consists of a long tube filled with mercury that measures air pressure. Barometers help predict the weather by measuring air pressure. Depending on the air pressure you can tell if a storm is coming or not.

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Because this type of barometer was very early is wasn't completely accurate. However, it did allow improvements and further thinking upon which led to our modern day barometer which is much more accurate. This invention is just one of the many other weather intentions during this time that all helped start inventions we use everyday now.

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This telescope works like telescope should by magnifying far away objects. Lippershey had an original version that magnified 3x but then further research and tampering led to a version that magnified up to 20x.

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This type of telescope was a revolutionary idea at the time because it was one of the only ways to see beyond the naked eye. Lippershey was able to prove Copernicus' Heliocentric Theory using his telescope and it, like most early inventions, allowed for improving and tampering. This led to some of the greatest telescopes we have today and even ones we've sent into space.