Science, Technology, and Society: Historical Developments and Impact
General Concepts and Historical Developments of Science and Technology
Introduction to Science, Technology, and Society
Science, Technology, and Society (STS):
Also referred to as science and technology studies.
The study of how social, political, and cultural values affect scientific research and technological innovation, and how these, in turn, affect society.
Scholars in this field examine the relationships between scientific and technological innovations and society, as well as the directions and risks associated with science and technology.
STS is related to the history and philosophy of science, but places a broader emphasis on the social aspects of science and technology.
Definitions:
Science: An organized and dynamic inquiry following the scientific method. It is a human activity and a social enterprise that leads to the formation of concepts, methods, principles, theories, laws, and procedures. These seek to describe and explain nature and its phenomena, while also leading to the development of apparatuses, equipment, and technologies.
Technology: A material product resulting from scientific inquiry. It is the application of knowledge to solve scientific and practical problems, enabling humans to survive and improve their lives. Technology represents a complex system of knowledge, skills, people, methods, tools, materials, and resources applied and allocated to the development, operation, and production of new or improved products, processes, or services.
Origins and Evolutionary Progress:
Early humans (Homo sapiens) sought to understand the unknown world out of curiosity about their nature.
They observed and recorded patterns, cycles, and repetitions in their environment, analyzing and organizing information to form an understanding of science.
By organizing learned information, early humans created primitive technology driven by the desire to survive and thrive.
Key advancements marked major evolutionary leaps: from bashing a rock on the ground to make the first sharp-edged tool, to the introduction of the wheel, the development of Mars rovers, and the expansion of the Internet.
Notable Human Successes in Science and Technology
1. The Wheel (3500 B.C.):
Concept originated around 3500 B.C. in Mesopotamia.
Initially used for pottery making before being adapted for transportation.
Evolved from using logs as rollers to solid wooden discs.
Enabled wheeled vehicles for transporting goods and people, driving economic growth and cultural exchange.
Concept extends to modern aviation and space exploration.
2. The Printing Press (~1440):
Invented by Johannes Gutenberg, a German inventor, around 1440.
Movable metal type had previously been developed in China and Korea, but Gutenberg created the first mechanized process transferring ink to paper.
Gutenberg created ink using linseed oil and soot.
Allowed the rapid and widespread dissemination of knowledge for the first time in history.
3. The Telephone (1876):
Alexander Graham Bell was awarded the first patent for the electric telephone in 1876.
Built upon pioneering work on electronic voice transmission by several inventors.
Reshaped global business, family life, emergency response, politics, and culture as a new social system.
4. The Steam Engine:
A machine converting heat from steam into mechanical work, driving the Industrial Revolution.
Thomas Savery patented a steam pump in 1698 for draining mines.
Thomas Newcomen developed the atmospheric engine in 1712 to transmit continuous power.
James Watt improved efficiency in 1765 by adding a separate condenser and converting linear motion into rotary motion.
5. Penicillin (1928):
Discovered in 1928 by Scottish scientist Alexander Fleming from the antibiotic mold Penicillium.
Purified over two decades by chemists to produce the drug Penicillin.
Fights widespread bacterial infections in humans without harming human tissue, establishing the foundation for modern Pharmacology.
6. The Internal Combustion Engine:
Converts chemical energy into mechanical work by expanding high-temperature gas released during fuel combustion to apply force to a piston.
Developed through decades of engineering by multiple scientists, reaching its modern form in the second half of the 19th century.
Driven the Industrial Age, enabling modern automobiles and aircraft.
7. The Compass (9th–11th Century):
Invented by the Chinese between the 9th and 11th centuries using lodestone (a naturally magnetized iron ore).
Replaced star navigation, which was unusable during the day or on cloudy nights.
Transmitted to Europeans and Arabs via nautical contact, allowing long-distance navigation, expanding sea trade, and contributing to the Age of Discovery.
8. The Internet (Late 20th Century):
Global system of interconnected computer networks.
Originated in the 1960s when computer scientists working for the U.S. Defense Department's Advanced Research Projects Agency (ARPA) created ARPANET.
ARPANET utilized packet switching for data transmission, serving as the foundation for the global network.
9. Vaccines:
Pioneered by Edward Jenner in 1796 with the smallpox vaccine.
In 2020, pharmaceutical companies developed SARS-CoV-2 vaccines during the COVID-19 pandemic, initially focusing on preventing severe symptomatic illness using two-dose regimens.
10. The Airplane (1903):
First powered flight achieved by the Wright brothers in 1903, connecting distant geographic regions.
11. The Computer (Mid-20th Century):
Emerged in the mid-20th century, transforming data processing, industrial automation, and personal communication.
Advantages, Disadvantages, and Ethical Dilemmas of Science and Technology
Advantages:
Enhancing Daily Life: Makes life simpler, faster, and safer through smartphones, vehicles, electricity, microwaves, and internet connectivity.
Medical and Health Benefits: Technologies such as X-rays, MRI machines, antibiotics, and vaccines improve health outcomes, prevent diseases, and extend life expectancy.
Economic and Industrial Growth: Drives development by creating industries, increasing productivity, generating employment, and automating processes in agriculture, energy, manufacturing, and transportation.
Education and Learning: Enables digital learning, online courses, interactive teaching, e-libraries, and smart classrooms.
Environmental and Energy Solutions: Supports sustainability through renewable energy, recycling technologies, and pollution control measures.
Space Exploration: Expands cosmic understanding through planetary research and space missions.
Disadvantages and Ethical Dilemmas:
Threats to Human Survival: Development of nuclear weapons (1945 bombings of Hiroshima and Nagasaki), biological and chemical warfare agents (such as Anthrax and Sarin), and industrial toxic wastes.
Ethical Dilemmas & Social Harms: Production-related pollution, labor-saving technologies leading to unemployment, gadget addiction, and environmental issues like global warming.
Disparities in Well-being: Advanced nations enjoy technology-driven economic strength, while millions in less developed countries lack access to basic benefits.
Environmental Degradation: Deforestation, soil erosion, agricultural land conversion, river pollution, and ocean dumping of toxic waste.
Carl Sagan noted: "We live in a society exquisitely dependent on science and technology, in which hardly anyone knows anything about science and technology."
Prehistorical Antecedents of Science and Technology
Overview of Prehistoric S&T:
Human achievements are divided into:
Discovery: The recognition and observation of new objects.
Invention: The mental process combining discoveries, observations, and experiences to produce new methods (operations) and tools (means).
Prehistoric times lack written records; written records began around 5000 B.C.
Earliest known pottery dates back to around 10,000 B.C. in Japan.
The Stone Age (3.4 Million Years Ago – 8000 B.C.):
Toolmaking began with Australopithecus, Paranthropus, and early Homo species.
Early humans were hunter-gatherers depending on wild animals, birds, fish, nuts, berries, and fruits.
Tool progression went from non-specialized single tools to specialized collections.
Four Fundamental Tool Traditions:
Pebble-tool traditions.
Bifacial-tool (hand-axe) traditions.
Flake-tool traditions.
Blade-tool traditions.
Materials Used: Flint, chert, and basalt for sharp tools; basalt and sandstone for ground stone tools; wood, bone, shell, and antler for specialized gear.
Subdivisions of the Stone Age:
Paleolithic Period (Early):
Oldowan toolkit: Basic tools including hammer stones, stone cores, and sharp stone flakes.
Acheulean toolkit: Characterized by handaxes and large cutting tools.
Middle Paleolithic: Introduced the prepared core technique, flaking one side of a core to produce flakes of predetermined size and shape in a single blow.
Fire: The most important discovery/invention of the Paleolithic era, enabling food preparation, cooking, and the creation of food containers/utensils.
Inventions included needles and thread, skin clothing, harpoons, spear throwers, and specialized fishing gear.
Mesolithic Period (Middle):
Included stone points hafted onto shafts to create spears, darts, and arrows, alongside stone awls for perforating hides and scrapers.
Neolithic Period (New):
Shift from food gathering to food producing (herding societies and agriculture).
Domestication of animals, consumption/processing of wild cereal grains, and creation of sediment/clay pottery.
The Bronze Age:
Characterized by the development of mining and metallurgy.
Humans smelted copper and alloyed it with tin or arsenic to produce bronze.
Copper-tin ores were rare; tin bronzes in Western Asia emerged via trade in the third millennium B.C.
Bronze provided superior hardness and durability compared to other available metals.
The Iron Age:
Characterized by the production of tools and weapons using ferrous metallurgy (carbon steel).
Meteoric iron was used as early as 3200 B.C., but widespread production required techniques to smelt iron ore, remove impurities, and control carbon content.
Iron farming tools (such as sickles and plough tips) allowed cultivation of tougher soils in European village settlements.
Science and Technology in Ancient Civilizations (Old World: 3500 B.C. – 1200 B.C.)
Sumerian Civilization (Mesopotamia):
Located in southernmost Mesopotamia (modern-day Iraq and Kuwait); first established around 3600 B.C.
Developed Cuneiform, a writing system using pictograms on clay tablets.
Invented the potter's wheel shortly after 3500 B.C. (a heavy flat disk of hardened clay spun horizontally), which was later mounted vertically on axles to create wheeled wagons.
Built sailboats for navigating the Tigris and Euphrates rivers.
Mapped constellations, planets, and stars (laying foundations for the zodiac).
Introduced the sexagesimal system (base 60), which created the 360-degree circle and the 60-minute hour.
Agricultural innovations included the seed plow, systematic irrigation, and wool processing (bleaching and dyeing).
Babylonian Civilization:
Capital city Babylon served as a commercial and religious center in the Tigris-Euphrates valley.
Leader Hammurabi (1792–1750 B.C.) promulgated the Code of Hammurabi.
Emperor Nebuchadnezzar II constructed the Hanging Gardens of Babylon and the Ishtar Gate.
Developed canal irrigation systems with earthen dikes, double-entry bookkeeping, multiplication/division tables, geometry calculations, and predictions of solar and lunar eclipses.
Egyptian Civilization:
Developed along the Nile River valley in Northeastern Africa.
Smelted copper, gold, and bronze; invented glass-blowing by heating sand in high-temperature furnaces.
Written language called Hieroglyphics, written with ink and brushes on papyrus paper.
Advanced medical knowledge of anatomy, surgery, medicinal plants, and mummification/embalming.
Imhotep devised a 365-day calendar in the Old Kingdom based on the star Sirius to predict annual Nile flooding; also created a -day lunar calendar.
Divided the day into 24 hours and measured time using water clocks.
Built sun-dried mud-brick houses, irrigation canals, dikes, ditches, ships, and major stone monuments (Giza Necropolis, Great Sphinx, ruins of Memphis, Valley of the Kings).
Indus-Hindu Civilization:
Flourished along the Indus River valley (3300 BCE – 1300 BCE) in modern Pakistan and northwest India.
Major urban centers included Harappa (35,000 inhabitants) and Mohenjo-Daro (35,000–40,000 inhabitants) constructed on grid layouts using oven-baked mud bricks.
Infrastructure featured public wells, private house toilets connected to covered brick sewer systems bonded with gypsum mortar, public/private baths, and water management.
Key Figures:
Aryabhata (500 AD): Proposed that Earth rotates on its axis, formulated heliocentric elliptical planetary movement, calculated Earth's circumference and diameter, explained solar/lunar eclipses, and proposed a heliocentric theory of gravitation.
Brahmagupta (598–668 AD): Head of Ujjain astronomical observatory. Calculated Earth's circumference as 5,000 yojanas (), calculated eclipses, and described gravity: "Bodies fall towards the Earth as it is in the nature of the Earth to attract bodies, just as it is in the nature of water to flow."
Calendar systems used 27 or 28 Nakshatras (lunar constellations) and 30 lunar tithis per month, yielding 360 or 366 days per year.
Maharajahs constructed six major observatories, including the Jantar Mantar in Jaipur.
Cretan (Minoan) Civilization:
Developed on Crete and Aegean islands (Santorini) from 2600 to 1400 B.C.; capital was Knossos (palaces built 2100–1575 B.C.).
Rediscovered in the early 20th century by Arthur Evans and Will Durant (who described it as "the first link in the European chain").
Urban architecture included stone-paved roads cut with bronze saws, multi-story sandstone/gypsum houses with tiled flat roofs, drainage systems, and upper-class clay pipe water/sewer networks.
Built the world's first major navy ships for trading bronze, wine, oil, ceramics, and textiles.
Practiced polyculture farming (planting multiple crops simultaneously to protect soil fertility).
Disrupted around 1600 B.C. by the Theran volcanic eruption (releasing over of ash, gas, and rock), before being destroyed 50 years later by earthquakes and fires.
Science and Technology in Classical and Post-Classical Era (1200 BCE – 1000 AD)
Greek Civilization (400 B.C. – 400 A.D.):
Key Contributions: Foundation of Olympic Games (776 B.C.), astrolabe, theatre, water clock, Greek fire, levers, cranes, water mills, catapults, Archimedes screw, and land surveying.
Key Philosophers and Scientists:
Thales of Miletus (638–548 B.C.): Developed a theory of matter based on water.
Socrates (470–399 B.C.): Focused on human nature and established skepticism.
Empedocles (493–433 B.C.): Postulated four core elements: earth, air, fire, and water.
Hippocrates (~400 B.C.): "Father of Medicine"; asserted natural causes for diseases and authored the Hippocratic Oath.
Aristotle (384–322 B.C.): "Father of Biology"; created plant/animal classifications and introduced the scala naturae (Great Chain of Being).
Archimedes (287–212 B.C.): Discovered laws of the lever and pulley, calculated the value of , and established principles of hydrostatics and displacement.
Democritus: Developed atomic theory.
Pythagoras (497–581 B.C.): Formulated the Pythagorean Theorem and held that numbers rule matter.
Plato: Assigned geometric forms to the four physical elements.
Aristarchus: Proposed that Earth rotates on its axis and revolves around the Sun.
Hipparchus: Calculated the length of the month to within one second of modern calculations.
Eratosthenes: Measured Earth's circumference as .
Theophrastus: "Father of Plant Science"; wrote History of Plants (describing 500 plants) and Causes of Plants.
Ptolemy (~100 A.D.): Formulated the Geocentric model in his work, the Almagest.
Chinese Civilization (2800–256 BCE and later):
Developed along the Yellow (Huang He) and Yangtze rivers.
Early writing was recorded on "oracle bones" (animal bones used for divination); paper making developed by 1500 B.C. (utilizing silk rags, wooden strips, and silk cloth).
Tang Dynasty introduced paper money (7th century) and city bookshops.
Developed place value decimal base-ten mathematics and the abacus.
Formulated early astronomical records of comets and solar eclipses; built water-driven clocks.
Key Inventions: Magnetic compass (originally a magnetized spoon on wood), gunpowder (mixture of sulfur, charcoal, and potassium nitrate), fireworks, kites (Chou dynasty), seed drill, iron plough (4th century B.C.), two-wheeled hand-driven wheelbarrows (invented by General Chuko Liang during the Han Dynasty), crossbows, porcelain (kaolin clay fired at high heat), silk from silkworms, hot air balloons, matches, stirrups, acupuncture, and lacquer coatings.
Zhang Heng: Invented the seismoscope, a 6-foot-wide bronze vessel with 8 directional dragons holding bronze balls above 8 gaping toads to detect earthquakes.
Confucius (551–479 BCE): Authored the Analects, emphasizing family solidarity, social order, self-discipline, the concept of ren ("loving others"), and the Golden Rule: "What you do not wish for yourself, do not do to others."
Persian Civilization:
Founded by Cyrus the Great in the 6th century BC in present-day Iran.
Art & Writing: Developed Nas'taliq and Cursive Nasta'liq (Shekasteh Nas'taliq) calligraphy styles, woven Persian rugs, and detailed pottery.
Architectural Features: Mosaic-faced domes, mosques, bazaars, mausoleums, and wind towers (chimney-like structures designed to trap prevailing cooling winds).
Engineering: Invented Qanats (underground water management systems for irrigation and drinking) and early electrical cells (the first battery).
Roman Civilization:
Capital city Rome ("The Eternal City"); spoken language Latin.
Industrial & Architectural Engineering: Used water wheels/watermills for sawing timber, milling grain, and crushing ore. Built over of paved roads, stone-arch bridges, dams, amphitheaters, bath complexes with under-floor heating, and the Pantheon dome.
Public Works: Supplied by 11 limestone aqueducts delivering over of water daily for up to 3.5 million people; built underground sewage networks.
Technical Tools: Portable sundials, manual drills, metal spikes, glassblowing (window glass, oil lamps), and surgical instruments (bronze scalpels, obstetric hooks, bone drills, forceps, vaginal speculum, and hot-water tool disinfection).
Media & Calendars: Published Acta (daily public reports on legal/military issues starting in 131 BC) and adopted the Julian calendar (365 days, 12 months).
Key Figures: Galen (129–199 A.D., anatomy, physiology, and neurology), Vitruvius (architect/engineer), and Pliny (cataloged ~1,000 medicinal plant species).
Arabic (Islamic) Civilization:
Emerged in the Arabian Peninsula in 622 A.D.
Mathematics: Ibn Moosaa published Hisaab-Al Jab-Wal Muqaabala (containing 800 worked examples of integration and equations); Muhammad bin Moosaa Al-Khawaarizmi founded Algebra (origin of the term algorithm) and introduced Arabic numerals.
Optics & Physics: Kamaaluddeen explained rainbow light refraction; Ibn Haytham (1038 CE) invented the Camera Obscura; 8th-century scholars expressed early concepts of relativity using equations and astrophysics.
Engineering & Industry: Moosaa bin Shaakir cataloged 100 mechanical devices in his Book of Artifices; established paper manufacturing in Samarqand (8th century) and Egypt (900 CE); designed water wheels and the astrolabe.
Japanese Civilization:
Prehistoric Jōmon Period (13,000 B.C. – 1,000 B.C.) characterized by "cord-marked" pottery and keyhole burial mounds (kofun).
Edo Period (1603–1868): Hisashige Tanaka constructed the Myriad year clock (1851); developed gold, silver, and copper mining; introduced nationwide electric telegraphs and electric lighting.
Modern Era: Established JAXA (launched the Japanese Experiment Module in 2007–2008); operated 55 nuclear reactors by 2008 (generating of national electricity); developed advanced robotics including the Human Support Robot (HSR) and Integral AI models.
Science and Technology in Pre-Columbian Mesoamerica (1500 B.C. – 1500 A.D.)
Olmec Civilization (1200 B.C. – 400 B.C.):
Located in Gulf Coast Mexico (Veracruz and Tabasco).
"Olmec" means "rubber people"; extracted latex from Castilla elastica trees and mixed it with Ipomoea alba vine juice to make rubber as early as 1600 BCE.
Architecture & Arts: La Venta clay pyramid, colossal basalt heads (symbolizing thrones), polished magnetite/limenite mirrors, jade, serpentine, and obsidian trade goods.
Agricultural & Dietary: Cultivated cacao, processed chocolate drinks, developed drainage networks, and practiced ritual human sacrifice/cannibalism.
Maya Civilization:
Built tall limestone pyramids featuring arched tops, steeples, and roof combs using tools made of chert, obsidian, and jade.
Tracked Venus (patron planet of war) and celestial motions to predict eclipses.
Calendars: Tzolkin (260-day ritual calendar with 20 day names/symbols) and Haab (365-day solar calendar with 18 months of 20 days each).
Writing & Agriculture: Developed a script of ~800 glyphs; practiced Raised Bed Farming in swamps and Terrace Farming in mountains.
Aztec Civilization:
Established Tenochtitlan (14th–16th century A.D.) in the Valley of Mexico; official language Nahuatl.
Metallurgy & Tools: Manufactured tools from obsidian, chert, and later copper; utilized reed/bone drills; used wheels exclusively in toys.
Medicine: Recorded treatments, ointments, and salves in the Badianus Manuscript (1552).
Logistics: Dugout canoes navigated lake canal networks; conducted human sacrifices involving heart removal.
Inca Civilization:
Andean Empire (15th century – 1530s) centered at Cuzco, Peru (Tawantinsuyu); official language Quechua.
Construction: Fitted stone masonry without mortar (so tightly fitted that razor blades cannot pass between stones).
Diet & Medical: Consumed maize, sweet potatoes, quinoa, and coca leaves (used as a pain reliever and surgical anesthetic); performed successful skull trepanation surgeries to relieve cranial pressure.
Record Keeping & System: Utilized Quipus (knotted string assemblies) for data and historical records; established a 25,000-mile road network; used thatkiy (one pace) as a base distance unit.
Textiles & Rites: Wove cumpi cloth from alpaca/vicuña/llama wool; practiced mummification (November: "month of carrying the dead").
Science and Technology in Medieval Western Europe (A.D. 500 – A.D. 1500)
Military Developments:
Counterweight Trebuchet: Heavy siege engine using counterweights to launch large stones.
English Longbow: Used during the Hundred Years' War (1337–1453), contributing to the decline of armored knight cavalry.
Steel Crossbow: First handheld mechanical crossbow with draw-enhancing cocking devices.
Full Plate Armour: Replaced chain mail hauberks by the end of the 14th century.
Agricultural Innovations:
Heavy-wheeled Plough: Allowed turning of rich, wet soils in Northern Europe.
Horse Collar (6th–9th Century) & Horseshoes: Enabled horses to pull heavy loads and traverse rocky terrain.
Three-Field System: Rotated crops across three fields to optimize soil productivity.
Artesian Wells: First drilled in 1126 in Artois, France, by Carthusian monks using thin iron-tipped rods.
Wheelbarrows: Used between 1170 and 1250 in Northwestern Europe for mining, construction, and agriculture.
Inventions & Culture:
Blast Furnaces / Cast Iron: Appeared in Central Europe around 1150.
Hourglasses & Mechanical Clocks: Hourglasses were documented in Siena, Italy; weight-driven mechanical clocks were built in tower clock structures.
Vertical Windmills: Pivotable post mills used for grinding grain or pumping water (first noted in Yorkshire, England, in 1185).
Spectacles: Convex lenses created to assist farsighted vision.
Chess: Evolved from 6th-century Indian origins via Persia and the Islamic world, reaching its modern form in 15th-century Europe.
Mirrors: Created in 1180 by Alexander Neckham ("Take away the lead which is behind the glass, and there will be no image of the one looking in.").
Oil Paint: Invented around 1410 by Flemish painter Jan van Eyck.
Tide Mill: Specialist watermills driven by tidal flows (earliest excavated site: Nendrum Monastery mill from 787 in Northern Ireland).
Spinning Wheel: Introduced to Europe from India via the Middle East, replacing hand spinning with distaffs and spindles.
Education & Social Impact:
Modern universities emerged during the 1100s (e.g., Oxford and Cambridge) to teach theology, law, and medicine.
Black Death (14th Century): Reduced Europe's population by 25–50%, stalling scientific progress; led to the introduction of 40-day quarantine protocols in Ragusa and Venice.
Christine de Pizan (15th-century writer) noted: "If it were customary to send maidens to school and teach them the same subjects as are taught to boys, they would learn just as fully and would understand the subtleties of all arts and sciences."
General Concepts and Historical Developments of Science and Technology
Introduction to Science, Technology, and Society
Science, Technology, and Society (STS):
Also called science and technology studies.
Studies how social, political, and cultural values shape scientific research and new technology, and how technology changes society in return.
STS scholars look at the connections between technological inventions and community life, including benefits and risks.
It is closely related to history and philosophy, but focuses more on how science affects everyday social life.
Definitions:
Science: A structured way of learning about the world using the scientific method. It is a human activity that creates ideas, rules, theories, and laws to describe nature and guide toolmaking.
Technology: Practical tools, machines, or systems made from scientific knowledge. It applies learning to solve real-world problems so people can survive and live better lives.
Origins and Evolutionary Progress:
Early humans (Homo sapiens) were curious about their surroundings.
They noticed repeating patterns in nature and organized information to build early scientific understanding.
Using what they learned, they made basic tools to help them survive and thrive.
Major steps include hitting stones to craft sharp edge tools, inventing the wheel, developing space rovers, and building the global Internet.
Notable Human Successes in Science and Technology
1. The Wheel (3500 B.C.):
Concept started around 3500 B.C. in Mesopotamia.
First used to shape clay pots before being used on carts for transportation.
Upgraded from rolling logs to solid wooden discs.
Helped move goods and people, growing trade and sharing cultures. Today, the wheel concept is used in airplanes and spacecraft.
2. The Printing Press (~1440):
Invented by Johannes Gutenberg in Germany around 1440.
Metal movable type was already used in China and Korea, but Gutenberg built the first machine to quickly press ink made from linseed oil and soot onto paper.
Allowed knowledge to spread quickly to many people for the first time.
3. The Telephone (1876):
Alexander Graham Bell received the first patent for the electric telephone in 1876.
Built on earlier work by several inventors studying voice signals over wires.
Changed global trade, family life, emergency calls, and daily communication.
4. The Steam Engine:
A machine that changes heat from steam into mechanical movement, starting the Industrial Revolution.
Thomas Savery patented a steam pump in 1698 for mines, Thomas Newcomen made a continuous power engine in 1712, and James Watt improved efficiency in 1765 using a separate condenser.
5. Penicillin (1928):
Discovered in 1928 by Scottish scientist Alexander Fleming from Penicillium mold.
Chemists spent twenty years purifying it to make Penicillin, a drug that cures deadly bacterial infections without harming human body cells.
6. The Internal Combustion Engine:
Burns fuel inside to create hot gas that pushes a piston, converting chemical energy into motion.
Built over many years by many engineers, taking its modern shape in the late 1800s to power modern cars and airplanes.
7. The Compass (9th–11th Century):
Invented in China using lodestone, a naturally magnetic iron rock.
Replaced star navigation, which could not be used during daytime or on cloudy nights.
Helped sailors navigate far out at sea, boosting international trade.
8. The Internet (Late 20th Century):
A global network linking computers around the world.
Started in the 1960s as ARPANET by U.S. Defense scientists using packet switching to send data.
9. Vaccines:
Pioneered by Edward Jenner in 1796 with the smallpox vaccine.
In 2020, medical companies created COVID-19 vaccines to stop severe illness.
10. The Airplane (1903):
The Wright brothers made the first successful powered flight in 1903, connecting far-away regions.
11. The Computer (Mid-20th Century):
Created in the mid-1900s, changing data work, factory automation, and personal messaging.
Advantages, Disadvantages, and Ethical Dilemmas of Science and Technology
Advantages:
Enhancing Daily Life: Makes life easier, faster, and safer with phones, cars, electricity, and internet access.
Medical and Health Benefits: Tools like X-rays, MRIs, antibiotics, and vaccines treat sickness and help people live longer.
Economic and Industrial Growth: Creates new jobs, boosts production, and automates hard work in farming, energy, and manufacturing.
Education and Learning: Helps people learn online using digital libraries, smart classrooms, and educational websites.
Environmental and Energy Solutions: Protects nature through solar power, recycling methods, and pollution controls.
Space Exploration: Expands our understanding of planets and the universe.
Disadvantages and Ethical Dilemmas:
Threats to Human Survival: Nuclear weapons (like the 1945 atomic bombings of Hiroshima and Nagasaki), chemical/biological warfare, and toxic waste.
Ethical Dilemmas & Social Harms: Factory pollution, job loss due to machine automation, phone addiction, and global warming.
Disparities in Well-being: Wealthy nations enjoy high-tech advantages while millions in poorer nations lack basic necessities.
Environmental Degradation: Cutting down forests, soil loss, dirty rivers, and ocean dumping.
Carl Sagan noted: "We live in a society exquisitely dependent on science and technology, in which hardly anyone knows anything about science and technology."
Prehistorical Antecedents of Science and Technology
Overview of Prehistoric S&T:
Discovery: Finding or noticing something new in nature.
Invention: Putting ideas and observations together to build a new tool or process.
Prehistoric times had no written records (written history started around 5000 B.C.).
The earliest known clay pots date back to around 10,000 B.C. in Japan.
The Stone Age (3.4 Million Years Ago – 8000 B.C.):
Early human species (Australopithecus, Paranthropus, and Homo) made basic stone tools.
People were hunter-gatherers, surviving on wild animals, fish, nuts, and berries.
Tools started simple and evolved into specialized tool sets.
Four Fundamental Tool Traditions:
Pebble tools.
Hand-axe (bifacial) tools.
Flake tools.
Blade tools.
Materials Used: Flint, chert, basalt, wood, bone, shell, and antler.
Subdivisions of the Stone Age:
Paleolithic Period (Early):
Oldowan tools: Simple hammer stones, cores, and sharp flakes.
Acheulean tools: Large cutting hand-axes.
Middle Paleolithic: Used prepared core techniques to shape stone tools reliably.
Fire: Most important discovery, used for cooking food, keeping warm, and hardening containers.
Mesolithic Period (Middle):
Added stone points glued to wooden handles for spears, arrows, and hide scrapers.
Neolithic Period (New):
Shifted from gathering food to farming crops and raising animals.
Developed clay pottery and grain processing.
Science and Technology in Ancient Civilizations (Old World: 3500 B.C. – 1200 B.C.)
Sumerian Civilization (Mesopotamia):
Located in southern Mesopotamia (modern Iraq and Kuwait); started around 3600 B.C.
Developed Cuneiform, picture writing on clay tablets.
Invented the potter's wheel shortly after 3500 B.C., later turning it sideways to make cart wheels.
Built sailboats, mapped stars into constellations, and used a base-60 math system ( in a circle, in an hour).
Used seed plows, irrigation canals, and dyed wool cloth.
Babylonian Civilization:- Located in Mesopotamia with its capital at Babylon.
Leader Hammurabi created the Code of Hammurabi laws.
Nebuchadnezzar II built the Hanging Gardens and Ishtar Gate.
Created canal irrigation systems, double-entry bookkeeping, math tables, and predicted eclipses.
Egyptian Civilization:
Developed along the Nile River in North Africa.
Smelted copper, gold, and bronze; invented glass-blowing.
Created Hieroglyphics writing on papyrus paper.
Advanced in anatomy, surgery, and preserving bodies (mummification).
Imhotep created a 365-day calendar based on the star Sirius to predict Nile floods, alongside a moon calendar.
Divided the day into 24 hours and measured time with water clocks.
Built mud houses, canals, ships, and large stone pyramids (Giza Necropolis, Great Sphinx).
Indus-Hindu Civilization:
Flourished in the Indus Valley (3300 BCE – 1300 BCE) in Pakistan and northwest India.
Major planned cities were Harappa and Mohenjo-Daro, built on grid patterns with baked brick buildings.
Features included public clean wells, private toilets linked to covered brick sewers, and public baths.
Key Thinkers:
Aryabhata (500 AD): Taught that Earth spins on its axis, orbits the Sun in oval paths, calculated Earth's size, and explained eclipses.
Brahmagupta (598–668 AD): Calculated Earth's circumference () and described gravity as Earth attracting objects toward itself.
Built star observatories such as Jantar Mantar in Jaipur.
Cretan (Minoan) Civilization:
Lived on the island of Crete (2600 to 1400 B.C.); capital was Knossos.
Built paved stone roads, multi-story stone houses with piped water/sewers, and trading ships.
Practiced polyculture (growing several crops together to keep soil healthy).
Damaged by the huge Theran volcano eruption around 1600 B.C., and ended 50 years later by earthquakes and fires.
Science and Technology in Classical and Post-Classical Era (1200 BCE – 1000 AD)
Greek Civilization (400 B.C. – 400 A.D.):
Introduced Olympic Games (776 B.C.), astrolabes, theater, water clocks, levers, cranes, water mills, catapults, and water screws.
Key Philosophers and Scientists:
Thales: Believed all matter came from water.
Socrates: Focused on human behavior and questioning ideas (skepticism).
Empedocles: Proposed four main elements: earth, air, fire, and water.
Hippocrates: "Father of Medicine"; taught that diseases have natural causes and created the Hippocratic Oath.
Aristotle: "Father of Biology"; classified living plants and animals.
Archimedes: Discovered lever rules, calculated the value of , and explained why objects float in water.
Democritus: Proposed that all matter is made of tiny atoms.
Pythagoras: Formulated the Pythagorean Theorem in geometry.
Eratosthenes: Measured Earth's circumference as .
Theophrastus: "Father of Plant Science"; described 500 plants.
Ptolemy: Created the Earth-centered (geocentric) map of the universe.
Chinese Civilization (2800–256 BCE and later):
Built along the Yellow and Yangtze rivers.
Earliest writing was recorded on "oracle bones"; later made paper from silk and wood.
Used base-10 math, abacus counting frames, and tracked comets and eclipses.
Key Inventions: Magnetic compass, gunpowder, fireworks, kites, seed drills, iron plows, wheelbarrows, crossbows, porcelain, silk, matches, stirrups, acupuncture, and paper money.
Zhang Heng: Invented a 6-foot bronze seismoscope to detect earthquakes.
Confucius: Taught family unity, social order, and the Golden Rule ("Do not do to others what you do not want done to yourself").
Persian Civilization:
Founded by Cyrus the Great in ancient Iran.
Known for Nas'taliq calligraphy, woven rugs, pottery, mosaic domes, and wind towers to catch cool breezes.
Built Qanats (underground water tunnels) and created early electric batteries.
Roman Civilization:
Capital city Rome; official language Latin.
Used water wheels for grinding grain and sawing wood. Built over of paved roads, stone arches, bridges, heated baths, and aqueducts delivering over of water daily.
Published daily news boards (Acta), used the 365-day Julian calendar, and created surgical tools (scalpels, drills, and tool sterilization using hot water).
Arabic (Islamic) Civilization:
Emerged in 622 A.D. in the Arabian Peninsula.
Mathematics: Developed Algebra (Al-Khwarizmi) and introduced Arabic numerals.
Optics & Physics: Ibn Haytham invented the Camera Obscura; scholars studied light refraction in rainbows and early ideas of relativity.
Engineering: Designed water wheels, paper mills (Samarkand and Egypt), and mechanical devices.
Japanese Civilization:
Jōmon Period created cord-marked pottery and keyhole burial mounds (kofun).
Edo Period (1603–1868): Invented the Myriad year clock (Hisashige Tanaka), expanded metal mining, and built telegraphs and electric lighting.
Modern Era: Established JAXA space agency, operated nuclear power plants, and built advanced AI robots like the Human Support Robot (HSR).
Science and Technology in Pre-Columbian Mesoamerica (1500 B.C. – 1500 A.D.)
Olmec Civilization (1200 B.C. – 400 B.C.):
Lived in Mexico; named "rubber people" for making rubber out of tree sap and vine juice as early as 1600 BCE.
Built clay pyramids, large stone heads from basalt, polished mirrors, and underground drainage channels.
Maya Civilization:
Built limestone pyramids using stone tools made of chert, obsidian, and jade.
Tracked star and planet movements (especially Venus) to predict eclipses.
Created two calendars: Tzolkin (260-day ritual calendar) and Haab (365-day solar calendar).
Wrote using 800 picture glyphs and farmed using swamp raised beds and mountain terraces.
Aztec Civilization:
Capital was Tenochtitlan (modern Mexico City); spoke Nahuatl.
Crafted tools from obsidian, stone, and copper; used wheels only on children's toys.
Wrote medical plant recipes in the Badianus Manuscript (1552) and used dugout canoes on lake canals.
Inca Civilization:
Andean Empire centered in Cuzco, Peru; spoke Quechua.
Built stone structures fitted together so tightly that a knife blade could not fit between them.
Used coca leaves to reduce pain during surgery and performed skull surgeries.
Recorded data using Quipus (knotted string sets) and built a road system.
Science and Technology in Medieval Western Europe (A.D. 500 – A.D. 1500)
Military Developments:
Counterweight Trebuchet: Heavy siege catapult that hurled large stones.
English Longbow: Used during the Hundred Years' War (), changing knight combat.
Steel Crossbow & Full Plate Armor: Improved shooting power and personal body protection.
Agricultural Innovations:
Heavy-wheeled Plow: Helped turn heavy, wet soil in northern Europe.
Horse Collar & Horseshoes: Allowed horses to pull heavier loads over rocky ground.
Three-Field System: Rotated crops across three fields to keep soil fertile.
Artesian Wells & Wheelbarrows: Provided continuous water pressure and easy transport of construction materials.
Inventions & Culture:
Blast Furnaces, Mechanical Clocks, Hourglasses, & Windmills: Advanced metal making, timekeeping, and grain milling.
Spectacles: Eyeglasses made with convex lenses to help farsighted people read.
Chess, Mirrors, Oil Paint, & Spinning Wheels: Expanded culture, art techniques, and cloth production.
Education & Social Impact:
Modern universities were established in the 1100s (such as Oxford and Cambridge).
Black Death (14th Century): Plague that killed