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Explore the shift from magical explanations to scientific reasoning in the Age of Exploration and Scientific Revolution, as Natural Philosophers blended religious teachings with classical thought to unveil the mysteries of nature. Witness key figures like Roger Bacon, Copernicus, Galileo, Newton, and others challenging ancient beliefs through rigorous experimentation, mathematics, and the development of the Scientific Method. Delve into groundbreaking discoveries in astronomy, physics, and anatomy that reshaped our understanding of the universe. Discover how pioneers like Vesalius, Harvey, Descartes, Bacon, Leeuwenhoek, Boyle, and Priestly revolutionized science through observations, experiments, and innovative thinking. Witness the birth of modern science as empirical evidence replaced faith, leading to profound insights into the workings of the natural world.
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Chapter 16-Age of Exploration Scientific Revolution
Scientific revolution • From Magic to Science • Natural Philosophers: religious teachings + classical thought to explain the unexplainable • Roger Bacon: 1200s scientist & philosopher • Favored a system of experimentation as a means of finding truth (not faith) • Practiced alchemy – Dr. Mirabilis (wonderful teacher) • Scientific Revolution: • experiments & mathematics used to explain nature • Formed basis for what we know as science • Answered questions in physics, astronomy & anatomy
New study of nature • Scientists of 1500s question ancients • Form conclusions based on their own observations • 3 new tools to study • Scientific instruments: barometer, microscope, telescope, air pump & thermometer • Mathematics • Experimentation – repeated for consistency • Scientific Method
Astronomy, physics, anatomy • Astronomy • Study of stars, planets, and other bodies in the sky. • Physics: • Focused on changes and properties of matter and energy. • Anatonomy: • Studied structure of the human body. • Examining dead bodies
Theories • Ptolemy theory was known as the “geocentric theory” • “Earth centered”, Sun and planets moved around Earth. • Nicolaus Copernicus was known as the “heliocentric theory” • “sun centered”, sun was the center of the universe. • Many ignored this theory at first. • Did not have instruments or Math to prove his theory.
JohanneKepler • Mathematician that tests Copernicus’ theory by using • Models, observations, and mathematics. • Published laws of planetary motion in 1609. • Galileo Galilei • Built the telescope: made far away objects smaller. • Draws sketches of things he witnesses through telescope • Rings around Saturn, spots on the sun, moons circling Jupiter. • Publishes work and scholars and church disapprove • Ptolemy’s theory is right • Contradicts the bible • Proved Aristotle’s theory wrong that “heavier objects fall faster than lighter ones. • He wrote “if there is no friction from air, all objects fall at same rate.”
Isaac newton • Universal Gravitation • All bodies attract each other • Falling objects were really examples of law of universal grav. • Physics (laws of motion and gravity) • Math (invented Calculus • Astronomy: world moved not because of God, but because of laws of motion in the universe.
Newton’s three laws of motion • An object in motion tends to stay in motion, while an object at rest tends to stay at rest, unless acted upon by an outside force • When a force is applied to an object, it accelerates according to the equation a = F/m (a=acceleration,F=force,m=mass) • to every action there exists an equal and opposite reaction
Andreas Vesalius (Flemish Scientist) • Pioneered the study of anatomy • 1543 published On the Fabric of the Human Body • 7 Volume’s – amazing detail, visual understanding of how body works • William Harvey (English physician) • Studied circulation of blood • Described how blood moves through body. • Functions of the heart.
Rene Descartes • Published “Discourse on Method (1637) • Assumptions had to be proven on basis of known facts. • “I think, therefore I am.” • Geometry and algebra, scientific method, astronomy, and the physical sciences. • Light reflects from a smooth surface. • Francis Bacon • Theories could be developed through observation • No assumption could be trusted unless it could be proven by repeatable experiments. • Published “NovumOrganum”: demonstrate physically, not through just thinking and reasoning.
Others • Antoni Van Leeuwenhoek • Used microscope to discover bacteria “animalcules” • Wrote about tiny life forms that were never seen by human eye. • Robert Boyle • Developed chemistry: composition of matter and how it changes. • Temperature and pressure affect the space that a gas occupies. • Joseph Priestly • Discovered oxygen • Antoine Lavoisier names it oxygen • Showed fire resulted when substance combined withy oxygen. • Law of conservation of matter.