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100
Ptolemy
According to Ptolemy, the sun and the planets revolved around the earth. He called this geocentric or "Earth-centered". From our point of view on Earth it way seem this way, but in the early 1500's Copernicus came up with a new theory. -
1200
Roger Bacon
Roger Bacon was an English philosopher and scientist. He was one of the earliest people to use scientific experimentation instead of following religious and ancient beliefs. He mainly practiced alchemy, which was a mid evil type of chemistry. He soon became Doctor Mirabilis because of his fame from teaching. -
1500
New Inventions
Early scientists of the 1500's began to question ancient beliefs. They started to form conclusions by observing different things. They started to make new inventions such as the barometer, the microscope, the telescope, the air pump, and the thermometer. They also used mathematics to make sure their work was correct and repeated experiments a number of times to make sure their results were the same or similar every time. -
1543
Nicolaus Copernicus
Copernicus believed that the Earth and other planets revolved around the sun. It went against Ptolemy's theory saying that everything revolved around the earth. When he released his theory in 1543 people didn't pay much attention. His theory didn't make sense to people because they only saw the sun from the earth's perspective. -
1543
Andreas Vesalius
Vesalius, a Flemish scientist, studied the human body and how it worked. He published a book called, On the Fabric of the Human, which showed illustrations of the human body which were extremely detailed for his time. This helped people gain a visual understanding of complicated parts of the body and how everything works together. -
William Harvey
Even though Harvey didn't have as big of discovery as Vesalius, his findings were still important. He researched the flow of blood and how it travels through veins and arteries. He also researched about the heart -
Johannes Kepler
Johannes Kepler was a German mathematician that used math to prove Copernicus's theory correct. Some of Copernicus's ideas were wrong, but that didn't stop him from proving Copernicus theory about the earth and other planets revolving around the sun. In 1609 he published the planetary laws of motion. But he needed a scientist to prove his findings. -
Francis Bacon
Francis Bacon was an English philosopher and scientist that lived around the time of Descartes. He believed that theories and assumptions could only be proven through observation. "He said that no assumptions could be trusted unless i could be proven by a repeatable experiment. He also released a book called, Novum Organum, that showed his thoughts. -
Galileo Galilei
Galileo invented the telescope which allowed him to observe far a way things up close. He observed that there were moons that circles around Jupiter. If moons circled around Jupiter then not everything revolves around the Earth, proving Copernicus's theory correct. Most people didn't believe Galileo at first when he published his theory in 1632. Church scholars disapproved on Galileo's findings because it didn't follow the bible. -
René Descartes
Descartes was a french philosopher and mathematician was known as the leader of the scientific revolution. He believed that no assumptions should be true unless proven with scientific evidence. He also believed that all fields of science were connected someway or another. Because of that, he thought that they should all be studies together. He also proposed the laws of refraction. -
Robert Boyle
Boyle helped create and bring popularity to chemistry. He showed that temperature and pressure affect space that gas occupies. -
Isaac Newton
Isaac Newton was an English scientist who wrote a book proving Kepler, Galileo, and Copernicus's theories about the earth revolving around the sun. Even though they made that theory, they didn't have much to prove it. When he started to research, he realized that the force that keeps the planets in orbit and the force that causes objects to fall to Earth are the same. He made the laws of gravitation which says that all bodies attract each other. -
Isaac Newton (continued)
This showed that Kepler and Galileo's discoveries about falling object on Earth and the laws of gravitation with planets orbiting are the same. Newton had a huge impact on science today. Even his laws of motion are used today from seat belts to space travel. -
Antoni van Leeuwenhoek
Leeuwenhoek used the microscope, which was invented in the late 1500s, to descover bacteria. He originally named them animalcules. He wrote all about a whole variety of tiny life forms that had never been seen by humans before -
Gottfried Liebnitz
Liebnitz, along with Isaac Newton developed calculus, a new part of math. They did not work together and developed calculus separately. -
Joseph Priestley
Priestley was an English chemist who discovered the element oxygen. Antoine Lavoisier later maned it. -
Antoine Lavoisier
Lavoisier showed that fire was not an element, but a result of something rapidly combining with oxygen. He also showed that when steam mixes with air it becomes invisible. Lastly, he showed that matter can change form, but not be created or destroyed.
