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Theme: Technology Irrigation Systems • • Bringing water from water source to fields for farming • Ditches or water wheels Early civilizations create irrigation systems to help with farming and creating enough food for growing populations Aqueducts • • Ancient Romans built large bridge-like structures to carry water long distances from water sources to cities and farms Were copied by other civilizations Gunpowder • • • Invented in the Tang Dynasty of China and its use expanded during the Song Dynasty Initially used in fireworks, then expanded to weapons- canons, firelances, etc. Europeans perfected the use of gunpowder in weapons Printing Press • • • Invented by Johannes Gutenberg in 1450-first European moveable-type printing press First book printed was the Gutenberg Bible Effects: • Books become easier and faster to make • Literacy increases in Europe • New ideas able to spread quickly- 95 Theses, Enlightenment texts Caravel/Astrolabe • • • Caravel- ships developed by the Portuguese that combined European square sails and Arab triangular sails, made it easier to sail across/into the wind Astrolabe- instrument used to help determine latitude location in the ocean Both used during the Age of Exploration , allowed for sea exploration and Europeans to reach the Americas Steam Engine • • • Developed during the Industrial Revolution Coal was used to power steam engines- could build machines without needing to be next to a moving water source Also used for new forms of transportation: steam engine, boats, etc. Factories • • • Develop during the industrial revolution Built to house machines that are being invented to increase production • Flying Shuttle- weaving could happen at a faster place • Spinning Jenny- quickly produces thread Results in pollution, poor working conditions, urbanization Nuclear Power • • • • First nuclear weapons were developed/used during WWII (Hiroshima and Nagasaki) Cold War- Nuclear proliferation led to MAD Other nations have developed nuclear capabilities, including some “unfriendly” nations (North Korea, Iran) • 17 nations are currently known to have nuclear weapons Nuclear Nonproliferation Treaty signed in 1968 Chemical Pesticides • • Developed during the Green Revolution (1960s) Did help to increase food production, but also led to pollution and huge fear of health risks Scientific Revolution • • • • • • Develops from the inquiring spirit of the Renaissance Copernicus- heliocentric model of the universe (supported by evidence from Tycho Brahe) Johannes Kepler- planets move in ellipses Galileo Galilei- first telescope, observed movement in the universe Sir Francis Bacon- Scientific method Isaac Newton- gravity