Scientific Revolution Notes (Spielvogel Chapter 16)
Note: This chapter covers a vast period of time we already covered. Don't get confused.
- Causes/Antecedents
- Humanism – Look to ancients (Classical Civs.)
- since they contradict each other, which is right?
- There were some math genius in the old days
- Artists – accurate depictions of nature & humanity
- Technical needs – innovation necessary for exploration
- Magic?
- Debate among scholars (see pages 440 – 441)
- most scientists were into alchemy & magic (called the “Hermetic tradition” because historians want to sound fancy)
- Astronomy
- Geocentric – prevailing idea (from Ptolomy [2nd century AD], Aristotle, & Christian theology)
- Nicolaus Copernicus (1473-1543)
- mathematician who invented heliocentric theory
- initially attacked by protestant reformers (esp. Luther)
- Brahe and Kepler
- Brahe was a Danish nobleman who was given an island near Copenhagen. He built a fancy castle on it, and used it to collect astronomical observations for 20 years.
- Kepler was Brahe's assistant.
- Mathematician with magical interests who came up with laws of planetary motion
- planets orbit the sun in elliptical orbits
- speed of a planet increases when it is closer to the sun
- for planets, the larger the orbit, the slower the velocity
- Galileo Galilei (1564 – 1642)
- proved the heliocentric theory with a telescope
- condemned by the Inquisition, kept studying, and ultimately placed under house arrest
- proved that a state of uniform motion is as natural as a state of rest
- Sir Isaac Newton (1643 – 1727)
- seemed like a normal kid until they shut down Cambridge (where he was a student) because they were afraid of a plague outbreak
- invented calculus (culmination of centuries) & started working on universal gravitation
- Mathematical Principles of Natural Philosophy (called Principia)
- explains universe in terms of mechanics
- introduced three laws of motion
- explained how planets move in their orbits (explains what others found)
- Medicine
- balance of humors approach – dominated middle ages
- comes from 2nd century Greek physician Galen, who would explain physiology while an assistant illustrated his points by dissecting a cadaver
- thought that illness came from imbalance of natural “humours” in the body
- contraries cure
- Paracelsus (1493-1541)
- arrogant – changed his name to Paracelsus (“greater than Celsus,” the famous ancient physician), couldn't hold down a job, see primary document quote on p. 450
- thought that people were small replicas of the universe – problems come from imbalance in chemistry and can be treated by chemical mixtures
- like cures like
- Andreas Vesalius (1514-1464)
- suggested practical research to understand anatomy
- William Harvey (1578-1657)
- laid the foundation for modern physiology by describing motion of heart & blood
- Women in scientific revolution
- In England/France – mostly informally trained (upper class); Germany had a tradition of family craft production, and therefore allowed women to be scientists (esp. astronomers [1/7] and entomologists)
- querelles des femmes – centuries-long “arguments about women” – where do they belong, what is their role, etc.?
- Science of the period generally “proved” that women were inferior
- science tends to find whatever it wants to find
- Margaret Cavendish (1623-1673)
- scientific critic, esp. criticized attempts to master nature
- Maria Sibylla Merian (1647-1717)
- illustrator/entomologist who described insects of Surinam
- Maria Winkelmann (1670-1720) – wife of Germany's foremost astronomer, discovered a comet
- Rationalism
- René Descartes (1596-1640) – Wrote the Discourse on Method
- suggested only accepting philosophies based on reason
- began with the supposition that he, himself, exists: “I think, therefore, I am.”
- secondly concluded the “Cartesian dualism” – mind & matter are separate
- Westerners began to see themselves as their minds, rather than as a whole organism
- Scientific Method
- Francis Bacon (1561-1626)
- suggested rebuilding scientific theory from the ground up, based on deductive reasoning, moving from specific things to general things
- thought science should be practical
- Science & Religion in the 1600s
- science was initially an outgrowth of religion & mysticism – early scientists saw them as complements to each other, not opponents
- religious people were the initial attackers of science, not vice versa (Galileo)
- evolved into separate systems of thought
- Benedict de Spinoza (1632-1677)
- Monism – God is the universe, not merely the universe's creator. We are all a part of God. Nature is not for use, but we are all a part of it.
- Blaise Pascal (1623-1662)
- Felt that Christianity should be independent of reason – people should join because the world of nature could never reveal God
- Pascal’s Wager – Pascal said that belief in God is sensible, because if you believe and there is no God, you are out nothing; if you don’t believe and there is a God, you are in trouble.
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