The
Wealth and Poverty of Nations
Why some are so rich and some so poor
By David Landes
Chapter 4: The Invention of Invention
Adam Smith: 1776
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Technological Innovation encouraged by:
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Division of Labor
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Widening Market
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Both were already happening during Middle Ages
Important Middle Ages Technologies
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Water Wheel
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Eyeglasses
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Mechanical Clock
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Printing
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Gunpowder
Water Wheel
Revived in 10th century
By 1086 England had 5,600 water mills
Improved by dams and ponds
Cranks and toothed gears made possible:
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Power at a distance
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Change direction
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Rotary and reciprocal motion
Water Wheel
Applications:
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Grinding grain
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Fulling (pounding) cloth
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Transformed the woolen industry
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Hammering metal
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Rolling and drawing sheet metal and wire
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Mashing hops for beer
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Pulping rags for paper
Water Wheel
“ Paper, which was manufactured by hand and foot for a thousand years
or so following its invention by the Chinese and adoption by the Arabs,
was manufactured mechanically as soon as it reached medieval Europe in
the thirteenth century…Paper had traveled nearly halfway around the world,
but no culture or civilization on its route had tried to mechanize its
manufacture”
Europe was a power-based civilization
Eyeglasses
Doubled the working life of skilled craftsmen:
Scribes and readers
Instrument and toolmakers
Close weavers
Metal workers
Eyeglasses
By age 40, get farsightedness occurs
Can’t focus on close objects
If can see, 20 more productive years of work for medieval skilled craftsman
Eyeglasses
Invented in Pisa 13th century
By 15th century Italy making thousands spectacles
Eyeglasses encouraged invention of fine instruments
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Gauges
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Micrometers
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Fine wheel cutters
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Precision tools
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Eyeglasses
Knowledge of lenses produced other inventions
Europe had monopoly on corrective lenses for 300-400 years
Mechanical Clock
Before its invention: sundials and water clocks: both unreliable
Reliable time important
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Church seven daily prayer offices
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Organize time in cities
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Time to wake, sleep
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Time to work, go home
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Time to put out fires (covre-feu became curfew)
Mechanical Clock
Invented in Italy and/or England 13th century
Early clocks inaccurate
Relentless pressure to improve technique an design
Clockmakers lead the way in accuracy and precision
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Miniaturization
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Correcting errors
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Searching for new and better
Mechanical Clock
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Undermined Church authority: equal hours for day and night a new concept
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Resisted by the church for a century
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Every town wanted one
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Public clocks installed in towers
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Conquerors seized as spoils of war
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Symbol of secular authority
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Allowed individual autonomy
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Work now measured by time: increased productivity
Mechanical Clock
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European monopoly on clocks for 300 years
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No one else could make them to European standards
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Chinese treated time as confidential aspect of sovereignty, not to be shared
with the people
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Chinese reluctant to acknowledge European technological superiority
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Moslems did not establish public clocks because it would undermine religious
authority
Printing
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Invented in China in 9th century
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Chinese language not well suited for movable type: not widely used
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Chinese discouraged dissent and new ideas
Printing
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Europe already interested in written word
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Government paper work written in common language: not Latin
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Scribes could not keep up with demand
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Gutenberg Bible printed in 1452
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By 1501, millions of books published in Europe
Gutenberg Bible: 1542
Printing
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Moslems did not accept printing: printed Koran unacceptable
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India also did not accept printing: first printing press in 19th century
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Europe: Church tried to stop common language printing of Bible
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But political authority too fragmented to stop it
Gunpowder
Invented by Chinese in 11th century
Used as incendiary in fireworks, war
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Tubed flame lances
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Bombards
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Arrow launchers
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Fire thunder
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Chinese fought nomads: not siege warfare
Gunpowder
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Europeans improved gunpowder
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Europeans focused on range and weight of projectiles: siege warfare
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With improved metal casting, made world’s best cannon
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Thus military supremacy
Why did Europe get Ahead?
Islam
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Islam from 750 to 1100 A.D. far surpassed Europe in science and technology:
Islam was Europe’s teacher
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Then Islamic science was denounced as heresy by religious zealots
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Islam does not separate religious from secular (as does Christianity)
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New ideas dried up under theological pressure
China
Chinese inventions:
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Wheel barrow
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Stirrup and rigid horse collar
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Compass
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Paper
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Printing
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Gunpowder
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Porcelain
China
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Water driven machine for spinning hemp in 12th century: 500 years
before Industrial Revolution in England
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Blast furnaces for smelting iron: 125,000 tons pig iron in 11th century:
Amount reached by Britain 700 years later
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But both technologies fell into disuse
Reasons for Chinese Stagnation
Absence of a free market and property rights
Chinese state always interfering with private enterprise
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Taking over or prohibiting lucrative activities
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Manipulating prices
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Exacting bribes
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Curtailing private enrichment
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Government strangled initiative
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increased costs of transactions
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diverted talent from commerce and industry
Ming Dynasty
First promoted maritime trade, then prohibited it: China became isolated
Before Europeans arrived Chinese fleet huge, advanced
By the time Europeans arrived, Chinese fleet not a threat
Chinese Navy: 15th century
Reasons for Chinese Stagnation
Confinement of women to the home made it impossible to exploit them
in textile factories
Chinese society totalitarian: State monopolies on
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Salt
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Iron
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Tea
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Alcohol
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Foreign Trade
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Education
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Written material
Regulations on
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Clothing
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Construction of houses
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Colors worn
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Music
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Festivals
Rules from birth to death
Endless paperwork and harassment of people
Result: no one tried. Why try?
Europe
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Much less interference
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Innovation, emulation challenged forces of conservatism
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Sense of progress replaced reverence for authority
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Freedom in all domains
Why Europe?
Judeo-Christian Beliefs:
respect for manual labor
subordination of nature to man
sense of linear time (not cyclical): progress
Market, free enterprise
Innovation worked and paid
Rulers limited in ability to prevent innovation
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