Scientific Revolution And Enlightenment Flashcards
Renaissance magic
Origins of scientific revolution, believed that world was living embodiment of divinity, humans had spark of divinity, could use magic (especially mathematical magic) to understand and dominate world of nature or employ powers of nature for beneficial purposes
Many famous people from the times had an interest in hermetic magic
Geocentric conception
Universe seen as series of concentric spheres with a fixed or motionless earth at its center. Earth composed of material substances of earth, air, fire, and water, imperfect and constantly changing. Spheres that surrounded earth transparent, moved in circular orbits around earth, pure orbs of light. Beyond tenth sphere was location of God and saved souls, humans power over earth but real purpose to achieve salvation.
Copernicus
1473-1543, wrote On the Revolutions of the Heavenly Spheres, developed heliocentric conception, Protestant reformers attack him for ideas, Catholic Church stay silent for a while until Galileo
Heliocentric conception
Copernicus made it, universe has eight spheres with sun at center, motionless. Planets revolve around sun, moon revolve around earth. Earth rotate daily, rotate around sun yearly. But didn’t reject circular orbits. Serious backlash from Lutherans
Brahe
Lived on island, Danish, detailed observations of positions and movements of stars and planets, rejected Aristotelian-Ptolemaic system, but no quite accept Copernicus, assistant was Kepler
Kepler
Interest in magic, theory that universe constructed on basis of geometric figures, harmony of human soul mirrored in numerical relationships existing between the planets. Three laws of planetary motion, eliminated the idea of uniform circular motion as well as the idea of crystalline spheres revolving in circular orbits, disproved Ptolemaic system
Kepler’s three laws of planetary motion
First law reject Copernicus by showing orbits of planets around sun not circular but elliptical, sun at focus of ellipse rather than center
Second law demonstrate that speed of a planet is greater when it is closer to the sun and decreases as its distance from the sun increases
Third law establish that square of planet’s period of revolution is proportional to the cube of its average distance from the sun (aka planets with larger orbits revolve at a slower average velocity than those with smaller orbits)
Galileo
1564-1642, first European to make systematic observations of the heavens by telescope, saw mountains on moon, moons around Jupiter, phases of Venus, sunspots. Demolished idea that universe made of perfect unchanging substance. Published The Starry Messenger in 1610. Catholic Church hated him, told him not to preach his findings, Galileo no listen to them, 1632 publish dialogue on the two chief world systems, written in Italian, house arrest.
Galileo’s contributions to motion
Demonstrated that if a uniform force applied to an object it would move at an accelerated speed rather than a constant speed
Discovered inertia when he argued that a body in motion continues in motion forever unless deflected by an external force, state of uniform motion as natural as a state of rest
Newton
English, considered greatest genius of scientific revolution, invented calculus (mathematical way of calculating rates of change), wrote Principia, interested in occult world, did universal law of gravitation. Law proved mathematically that one law could explain all motion in the universe, secrets of natural world could be known by human investigations, world seen in mechanistic terms, natural laws, universe machine, world-machine, accepted in England but took longer to be accepted elsewhere
Newton’s work on the universal law of gravitation
Three laws of motion: every object continues in a state of rest or uniform motion in a straight line unless deflected by a force, rate of change of motion of object proportional to force acting on it, and every action has an equal and opposite reaction. Demonstrated that these laws govern planets too. Universal law of gravitation said that every object in the universe was attracted to every other object in the universe with a force (gravity) that is directly proportional to the product of their masses and inversely proportional to the square of the distances between them.
Harvey
1578-1657, 1628 wrote On the Motion of the Heart and Blood, based on observations and experiments, demolished Galen’s ideas, demonstrated that the heart and not the liver was beginning point of circulation of blood in body, same blood flows in both veins and arteries, blood makes complete circuit as it passes thr go the body. Laid foundation for modern physiology.
Medicine
Previous ideas by Galen, relied on animal dissection, said two separate blood systems, bright red blood in arteries, dark red blood in veins. Blood, yellow bile, phlegm, black bile, can find out about disease from ruin bc disease imbalance of bodily humors, Irvine chief tool, purging and bleeding, herbal medicines
Chemistry
Boyle, Boyle’s law, volume and pressure of gas related, Lavoisier invent way to name elements, fundamental rules of chemical combination, Marie-Anne was wife, important too
Women in science
Margaret cavendish, participate in critical science debates, think humans no power over nature, aristocrat
Maria Merian, important entomologist, observe insects and plants, 1699 went to Surinam, wrote books, did illustrations to show reproductive and developmental cycles of surinam’s insect life
Maria Winkelmann, most famous female astronomer in Germany, married Germany’s foremost astronomer
All women in science faced obstacles bc women, not allowed into science societies
Querelles des femmes
Centuries long debate on the nature and value of women, male opinions not favorable, think women weak and biologically different from (inferior to) men, women think equal, should have equal opportunities/rights, not biologically different
Scientific revolution reaffirmed traditional ideas about women, males used new science to spread view that women inferior by nature
Descartes
Discourse on Method 1637, I think therefore I am, emphasis on mind, only accept things his reason said were true, separation of mind and matter, Cartesian dualism, father of modern rationalism
Cartesian dualism
Made by Descartes, absolute duality between mind and body, separation of mind and matter, using mind (human reason), the path to certain knowledge, and its best instrument, math, humans can understand the material world because it is pure mechanism, a machine governed by its own physical laws. Allowed scientists to vi matter as dead or inert, totally separate from them, could be investigated independently by reason. Changed how westerners viewed themselves
Rationalism
Founded by Descartes, belief that humans can understand the world (itself a mechanical system) by the same rational principles inherent in mathematical thinking. Cartesian dualism part of it, split between mind and body.
Bacon
English, wrote The Great Instauration, believed humans had proceeded incorrectly in trying to know natural world, new correct scientific method built on inductive principles, proceed from particular to general—from careful experiments/observations, correct generalizations could be developed. Concern for practical results rather than pure science.