Chapter 22

Section 1The Scientific Revolution

The Scientific Revolution• Before the 1500’s

people believed what was true & false based on Greek/Roman thinkers or the Bible.

• Scientific Revolution- a new way of thinking through careful observation and questioning accepted beliefs.

Nicolas Copernicus• Copernicus’s

Heliocentric theory states that the stars, earth and other planets revolved around the sun

• Copernicus did not print his findings until the last years of his life.

Galileo Galilei

• Galileo took an idea from a lens maker to create the telescope.

• Through his observations Galileo disproved past theories about the planets and sun and supported Copernicus theories

Cont..• Galileo’s findings

warranted a request from the Catholic Church to stop his work; Galileo did not.

• Galileo was imprisoned and under threat of torture he confessed his findings were false.

• He lived the rest of his life under house arrest .

Scientific Revolutionist

• Francis Bacon- felt that scholars relied too heavily on past theories. He pushed for more experimentation and observations to draw conclusions. Scientific Method

Scientific Revolutionist

• Rene Descartes- developed analytical geometry , which linked algebra and geometry

• Isaac Newton-linked the motion of the planets and the 3 Laws of Universal Gravitation

Scientific Revolutionist

• Zacharias Janssen- a Dutch eyeglass maker invents the microscope.

• Evangelista Torricelli- invented the 1st barometer which measured atmospheric pressure helping predict the weather

Scientific Revolutionist

• William Harvey- the 1st to explain how the heart functioned as a pump and how blood circulated through blood vessels.

• Edward Jenner- introduced inoculation, to prevent smallpox's . Using live germs to build immunity.

Scientific Revolutionist

• Robert Boyle- pioneered the use of the scientific method in Chemistry. Is known as the founder of modern Chemistry.