2. New Inventions
• 1670s: Anton van Leeuwenhoek; microscope
• Early 1600s: Galileo Galilei; thermometer
• 1643: EvangelistaTorricelli; barometer
3. Heliocentric Universe & Conflict with Church
• Copernicus: stars, earth, planets
revolve around sun
• Galileo uses telescope to
supports Copernicus
• Church forces Galileo to publicly
deny his claim