Link to Tim Richardsons main page
GNED 117
HISTORY OF TECHNOLOGY
As taught by 
Prof. Tim Richardson
Toronto, Canada
.
 

Detailed Course Outline

With the decline of Rome, power on the planet shifted eastwards towards the countries and regions dominated by Islam. In Western Europe, a degree of centralized power began to emerge among the descendents of the invading tribes that conquered Rome. In 800 AD, Charlemagne was crowned the Holy Roman Emperor and "western Europe grew in population and power as the result of technological innovations in agriculture and warfare"
p. 50 Children of Prometheus
 

The Medieval Science Page http://members.aol.com/McNelis/medsci_index.html
 
Class 8
 
 
 
 
 
 
 
 
 
 
 
 
 
 

Class 8

Dark Ages

for this class, we will
refer to the excellent 
description in 
Technology in 
Western Civilization, 
Volume 1. The section 
on Technology in the 
Middle Ages is written 
by Lynn White Jr.
cover
 

500 A.D. ~ 1300 A.D
 few technological innovations were made and little 
pure science progress was done
 
Page 66
"The traditional historical picture of the Middle Ages (500 A.D. to 1550 A.D.) has been one of cultural decline." This period has sometimes been called the Dark Ages. Many of the technological developments of the Greeks and the Romans were abandoned, or inappropriate for the situations
click to view Page 67
"... a technology is responsive to social needs; the needs of the Roman Empire ... differed from those of the agrarian and political decentralized states which arose from the ruins..."

"In the subsistence economy of Europe from 400 to 900 AD, iron tools were prized possessions. The scarce iron was used to provide sharp edges on implements made mostly out of wood".
P. 53 Children of Prometheus

click to view Page 68
Technology in 
Western Civilization, Volume 1
"The victory of Christianity over Paganism in the 4th century Roman Empire had provided an improved psychological basis for technological innovation"
Read further to learn about the 4 things that made the "west" become more technologically advanced than the "east"
click to view Page 71
Description of how Western military technology became superior to the East
Page 74~75
Description of agricultural developments and transportation developments. A better way of putting harness on horses allowed them to pull heavier loads (such as large plows) and carry loads over longer distances. Crop rotation was also developed. All of these factors increased availability of food, and enhanced people's health increased the numbers of the populations.
Page 76~77
Great advancements in shipbuilding with the invention of the modern rudder
click to view Page 78
"The spread of technology in the Middle Ages ... knew no geographical barriers"
 
.
Medieval 
Times !
Internet Medieval Sourcebook on-line
Children of Prometheus
Chpt 5
heritage of iron use left by the Romans
irons could makes better tools
better axes could cut down more trees
more cleared land led to more agriculture
more agriculture led to more food and a population increase
  • crop rotation ( 8th century)
  • leading to more efficient use of land
  • greater production per acre
use of horses for farm work to pull heavy plows - beginning 1100 AD

Although sometimes the period in European history, between the fall of the Roman Empire and the rise of the Renaissance in the 14th century is sometimes referred to as the Dark Ages (mostly in reference to the Black Death in the 13th century) there was in fact many advancements and developments in this period.
"Between about 700 - 1300, western Europe underwent a significant transformation. Its population multiplied four times to 36 million. Diets improved as agricultural production was expanded and made more efficient. Food production was improved by the use of water mills and windmills"
P. 63 
Children of Prometheus

.
Class 8

Medieval
Structures



Castles were part of Medieval history termed the Age of Feudalism. Feudalism refers to "... the military society which was created in Europe during the 9th and 10th centuries AD and
which reached its most developed form in Normandy in the 11th century."
http://www.britannia.com/history/david1.html
+  http://www.britannia.com/history/david2.html
+   http://www.britannia.com/history/david3.html

"what is a castle?" The English Medieval castle, like its counterparts in Europe, is a unique phenomenon. Most buildings are created to fulfil a single, specific purpose: a church, a house, a factory, a school, a bank, a hotel etc. A castle, depending upon the status of the man who occupied it, could be variously, a military base, a seat of government, a court and a stronghold for the surrounding region. It could be any or all of the above but it was principally the private residence of itsowner, his family and his dependents.

England had known fortifications before the advent of the castle. The  Iron Age peoples of Ancient Britain fortified hilltops with massive earthworks

The Romans dotted the countryside with innumerable military encampments and built the impressive chain of fortresses, known as  the Saxon Shore forts (e.g. Portchester Castle, below), to guard South-East England from Saxon raiders in the 2nd and 3rd centuries AD.

The Normans later built castles within the walls of two of these Roman Saxon Shore forts.

Castles were the product of that period of Medieval history termed the Age of Feudalism.

Feudalism is a term strictly applied to the military society which was created in Europe during the 9th and 10th centuries AD and which reached its most developed form in Normandy in the 11th century.

David Dawson

.
"The Norman conquest of England in 1066 introduced feudalism to  England. We have already seen that castles were a feature of feudalism so it follows that the Normans introduced castles to  England."

What is Feudalism?

"At the top, is the king who, in theory at least, owned all the land in his kingdom. Immediately below the king was a  group of major landholders who held their land directly from him, his  tenants-in-chief. These were the great lords and magnates of the  kingdom. [Dukes, Earls and Barons]  In return for their land, they swore to give the king military service; that is, they and their retainers would fight for the king whenever and whereever he chose. The tenants-in-chief let out land to their tenants, the lesser barons and  lords, on the same terms. This process was repeated all the way down the pyramid to the knight who was the local lord of the manor.  The amount of land a man held was directly proportional to the  amount of military service he could render."
David Dawson

.
Medieval 
Weights 
and 
Measures
"Medieval Europe inherited the Roman [measurement] system, with its Greek, Babylonian, and Egyptian roots. It  soon proliferated through daily use and language variations into a great number of national and  regional variants, with elements borrowed from Scandinavia and from the Arabs and original contributions growing out of the needs of medieval commerce."
 http://britannica.com/bcom/eb/article/6/0,5716,114986+7,00.html

"The basic Roman unit of weight, the libra, acquired a Germanic name in parts of northern  Europe but retained its Roman identity in the English abbreviation of pound as lb. Similarly the
 Roman mile survived, while the pace on which it was based vanished; it ceased to be a  thousand of anything and instead became varying numbers of feet and yards, measures
 inherited from earlier northern Europe.

 Medieval liquid measure was generally based on the pinte, or pint, which was approximately  equal to the modern English quart; the quart was a medieval unit of dry measure, very close to  its modern English equivalent in volume."

.
 
Class 8
Medieval
Structures

Gothic
Cathedrals

Children of Prometheus
page 58
"in the religious climate of medieval Europe, the building of large cathedrals became a way for towns to display their wealth..."

Some of the more famous early cathedrals in France, Germany and England were built in the period 950 AD ~ 1250 AD

Some of these buildings were 100 metres in length with interior spans of 12m and vaults rising as high as 30m above the floor

One cathedral at Chartes was 135m long with a span of 20m with a tower reaching 115m
 http://www.pitt.edu/~medart/menufrance/chartres/charmain.html
http://www.pitt.edu/~medart/menufrance/chartres/charmain.html



Professor Oliver Hansen from Westminister College

"The Christian and Islamic religions are different and yet similar as the architecture divulges...With the fall of the Roman Empire in the fifth century it brought about a new age that modern historians have termed the "Dark
Ages" or the Medieval Period in Europe.  This disintegration of the Roman Empire meant anarchy among the Germanic peoples and left Warrior-Lords to divide and conquer the land in Western Europe.  During this period of time between 500 to1000 A.D., early medieval existence progressed at a inconceivably slow pace..... Crusades.... Western Europe was introduced to the Byzantine and Islamic cultures.  The art of these cultures had not fallen into the Dark Ages with Europe, but maintained the heritage of the Greco-Roman influences.  Although Rome fell and Europe went into a period of nonprogression, Constantinople, established by Constantine in 330A.D. as a Christian city and later the capital of the Byzantine empire flourished and prospered with the remains of the eastern part of the Roman Empire."

.
In class March 21, videos will be shown about Gothic Catherdrals

One video, titled "Cathedral" is based on the well known book Cathedral by David Macaulay

In the Middle Ages, religious faith in Europe was the dominating motivation behind everything. The cathedral was meant o be a physical representation of the divine order of things.
http://www.wcslc.edu/pers_pages/ojh3508/midterm.htm From the Macaulay video
One of the things that makes the Gothic Cathedrals different from the pyramids, Roman cities, etc., is that after 750 years, they are still in use for their original purpose.
Aside from being a spiritual center, these buildings were also a magnet for trade and commerce. As the cities grew in the Middle Ages, they competed with each other for trade and business - just as cities do today. Many Cathedrals housed ancient religious relics which attracted people to travel far distances to see. As a result of travelling far distances, the local people could sell food, lodgings and other things to these travellers.

Masons

  • rough masons who prepared the building stones
  • free masons who carved the decorative stones
masons were highly organized and travelled far to work on buildings
.
 
click to see full size image of Video box cover click to see full size image of Video box cover The Video - Cathedral
Uses live-action sequences and animation to portray the construction, beginning in 1214 and extending over many years, of Notre-Dame de Beaulieu, a fictional but historically accurate Gothic cathedral shaped by cultural and religious forces. Begins with visits to actual cathedrals, including Chartres, Reims, Notre-Dame de Paris, Amiens, and the Royal Abbey Church of Saint Denis where the Gothic style originated. Focuses on architectural features such as flying buttresses and stained-glass windows, and the medieval technology which made them possible. Describes the Gothic cathedral as a symbol of prosperity and civic pride as well as the administrative center for spiritual and educational growth. Based on David Macaulay's book of the same name. Hosted by Macaulay and Caroline Berg.
.
 
click to see full size image of Video box cover click to see full size image of Video box cover This other video shown in class March 21 comes from 
Columbia University
Media Center for Art History 
and the Digital Design Lab

This video shows the 
Notre Dame Cathedral of Amiens , constructed from 
1220 - 1269

.
giant site for everything about Notre Dame cathedral
 www.learn.columbia.edu/notre-dame/index.html
This is the giant web site from Columbia University which has many descriptions and explanations of the Notre Dame Cathedral of Amiens
Notre Dame Cathedral of Amiens , constructed from 
1220 - 1269

This is a view of the
South Transept facade
from the Columbia University website

Notre Dame Cathedral of Amiens , constructed from 
1220 - 1269

from the Columbia University website

A good view of the flying buttresses, which allowed the interior walls to be supported - without making those walls to thick.

In the Middle Ages, the Cathedral was built to attract devoted persons who travelled great distances to see the relics, and the majestic architecture of the building.

Now, in 2001, it still draws a lot of people.

The Columbia University website says "50,000 people visit the Cathedral of Notre-Dame in Paris every day to stare at her windows, sculpture, enormous pillars, and  magical stone vaults."

.
some thumbnailed pics of the interior of the cathedral
click to see larger  .click to see larger
.
Class 8
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

Class 8

Leonardo Da Vinci, click to view

Renaissance period

click to go to link

click to read about Da Vince and science

The period from the mid 14th century to the beginning of the 17th century was the Age of the Renaissance - which was named such in reference to the "re-birth" of interest in classical Greek and Roman technology and architecture, implements, art and lifestyles. This was also the period for the first long ocean voyages of discovery and led to a greatly expanded view of the world.

It was during the Renaissance that the first voyages to North and South America were undertaken and the results had a great effect on European people.

At the same time, the Renaissance say the collapse of the great city states and the rise of larger regions which were the forerunners of today's European countries based on national monarchies.

The widespread use of gunpowder and cannons led to almost constant warfare as these early monarchies fought with each other over border disputes and access to good agricultural land and forests.



"The major influence of the Renaissance on technology was on architecture."
A. Rupert Hall p. 81 Technology in Western Civilization, Volume 1
Kranzberg and Pursell

During the Renaissance, many artists and masons, in working on the large religious building projects in England, Spain, France and Germany, made efforts to copy the designs and features of the most famous structures of ancient Italy and Greece.



Use of gunpowder  to propel projectiles - changes warfare technology
- improved iron technology
influences of inventions such as
printing presses
- first mechanical presses in 1450 A.D.
navigation devices, compasses
- opens up long distance land and sea trade routes


When people think of famous people who represent the Renaissance period, perhaps the most famous "Ambassador" of this time in world history is Leonardo Da Vinci 1452 ~ 1519 

"Leonardo da Vinci, born in 1452 near Vinci, Italy,  was perhaps the greatest innovative thinker in history. A true renaissance man, da Vinci's talents spanned many disciplines, including art, science, warfare, anatomy, and architecture."
KTEC
 
 

 http://www.ktec.com/davinci.htm
"Da Vinci conceived and intricately sketched many innovative ideas that have become commonplace in our modern world. His ideas included the helicopter, the machine gun, the parachute, and aircraft landing gear. What is truly amazing is that da Vinci's ideas for flight pre-date the understanding of modern physics."
from Kansas Technology Enterprise Corporation
links to all the drawings he did

- a detailed personal bio of Da Vinci at
 http://www.island-of-freedom.com/DAVINCI.HTM


 

.
 
Class 9 Scientific Revolution
 
 
 
 
 
 
 
 
 
 
 
 
 
 

Scientific Revolution

The Scientific Revolution saw a number of developments which meant a lot in terms of human advancement later; but during this historical period itself, most science was investigated and developed without a parallel application (technology)

The Scientific Revolution was a time ".. in which many people looked away from the church and towards logic and objectivity for the answers to their most fundamental questions about life, death, and the universe."

Timeline of the Scientific Revolution
 http://library.advanced.org/13786/Timeline.html
the background on this web page is a bad colour, it is easier to print this out than viewing it online.

PowerPoint presentation, on-line about the Scientific Revolution.
 Professor Scott Ian McLetchie, Department of History, 
Loyola University New Orleans
 http://www.loyno.edu/~history/worldciv/ppoint/scirev/sld001.htm

The fundamentals of the Scientific Method
1. problem
2. hypothesis
3. procedure / experiment
4. results / analysis
5. conclusion / generalization

Copernicus 1473 - 1543, new model of the universe
Up to the time of Copernicus the thinkers of the western world believed in the Ptolemiac theory that the universe was a closed space bounded by a spherical envelope beyond which there was nothing. 
- sun is the center of the universe
Copernicus bio at http://www.blupete.com/Literature/Biographies/Science/Copernicus.htm

Francis Bacon 1561 - 1626
- inductive method of reasoning
- proceed from observation and experiment to general principles

Galileo 1564 - 1642, 
- invention of the telescope in 1609 
- Galileo's law of uniform motion - objects fall at a constant rate of speed
Galileo bio at
http://www.blupete.com/Literature/Biographies/Science/Galileo.htm

Rene Descartes 1596 - 1650
- deductive reasoning based on doubt
- "cogito ergo sum"

Otto von Guericke
He'd studied the work of Galileo and  Torricelli.
Invented the vacuum pump in 1654
For an interesting story about this SIXTEENTH-CENTURY PNEUMATICS, go to
 http://www.uh.edu/engines/epi113.htm
In 1698, Thomas Savery made a workable pump that used the vacuum created by condensing steam. Later, Thomas Newcomen made a steam engine on the same principle, "and -- suddenly -- the power-generation game was afoot." John Lienhard and KUHF-FM

Class 9 Scientific Revolution
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

Scientific Revolution

Sir Issac Newton 1642 - 1727 
- astronomy of Copernicus
- physics of Gallileo
- studied mathematics and physics 
- law of gravity and 3 laws of motion
Newton's bio at
www.blupete.com/Literature/Biographies/Science/Newton.htm
 
Newton's first law of motion predicts the behavior of objects for which all existing forces are balanced. Objects at rest tend to stay at rest, (unless some force acts on them) objects in motion tend to stay in motion, unless re-directed
"Newton's second law of motion pertains to the behavior of objects for which all existing forces are not balanced. The second law states that the acceleration of an object is dependent upon two variables - the net force acting upon the object and the mass of the object."
"A force is a push or a pull upon an object which results from its interaction with another object. According to Newton, whenever objects A and B interact with each other, they exert forces upon each other. These two forces are called action and
reaction forces. Formally stated, Newton's third law is:"

"For every action, there is an equal and opposite reaction."

F=MA
Force=Mass x Acceleration

Newton also responsible for many principles of physics being discovered
for example - Newton stated that white light is made up of many different colours and suggested these colours where in a range from darker to lighter. He also established that light travelled in a straight line.

Class 
10
QUIZ. Quiz in the first 15 minutes of the class, worth 5 %

 
Class 11 Industrial 
Revolution
 
 
 
 
 
 

Industrial
Revolution
 
 
 
 
 
 

Industrial 
Revolution
 
 
 
 
 
 
 

Industrial 
Revolution


During this period, mechanical inventions transformed society from farmers and craftsmen to manufacturing on a large scale. The Industrial Revolution was made possible by significant developments in agricultural technology which increased the population and created an urban non-farming population. This urban population had many new demands for food and clothing which needed to be met by increasing the efficiency of producing food and clothing.

Developments in agricultural technology needed to feed fast growing population of Europe - and because the better farming methods could feed more people, more parents were encouraged to have more children

p. 153 Children of Prometheus

  • "The population of Britain increased from 6.2 million in 1750 to 20.8 million in 1850".
  • "the farm population declined from about 50% to 20%"


Agricultural Improvements

In England, many of the forests had already been cut down and most land cleared for agriculture so they could not increase agricultural product by increasing the land area, therefore what they had to do was increase the production on the existing land by using better farming methods and using more advanced machinery for tilling, planting and harvesting

Farms became more productive through
- farmers specializing in specific crops instead of small mixed farms
- technology used to increase farm land cultivated (swamps drained)
- food was required for more people, and so was wool required to make garments to clothe them
- cotton industry used technology to make large amounts of fabric which could be used to make clothes in a factory, instead of making clothes at home 

Agricultural reorganization

Part of the improvements came about based on technology, part of the improvements also came about due to better organization. In 1709 an act of Parliament was passed in England which resulted in tenant farmers being turned into farm labourers. The aristocracy assumed total control of the land and as a result they were able to make changes to crop rotation and selection of crops to be planted.

Root crops were added to the traditional grains. This assisted crop rotation because the soil requirements for potatoes, beets and turnips were different than wheat and barley. Additionally, horses replaced oxen and they developed breeding programs to result in larger horses which could pull heavier plows for a greater length of time. 

from Children of Prometheus page 154-155

- water wheels
before the use of water wheels, all work was done by human labour, and large animals

 


 
Class 
11

 

Industrial Revolution
 
 
 
 
 
 

Industrial Revolution
 
 
 
 
 
 
 

Industrial Revolution


Introduction to the Industrial Revolution
http://tqjunior.advanced.org/4132/info.htm

"The Industrial Revolution started in England around 1733 with the first cotton mill"

Point of interest - "As new inventions were being created, factories followed soon thereafter. England wanted to keep its industrialization a secret, so they
prohibited anyone who had worked in a factory to leave the country"



The Factory System

"New kinds of machinery and the application of steam energy to  running the machinery helped create the factory system. New  machinery also meant the standardization of products. The  Industrial revolution began in the British textiles' industry.   The Industrial Revolution had its beginnings in Britain because  the  English merchants were leaders in developing a commerce  that increased the demand for more goods."
from
Comptonís Interactive Encyclopedia.

Very young children were forced to work in the factories - the main reason children
worked there was because their hands and fingers were small and they could move small parts of machinery more easily +, older men and women did heavier labour in the fields.
Many children were badly treated to the point where they had physical deformities or died of their beatings.
http://www.spartacus.schoolnet.co.uk/IRpunishments.htm

In addition to bad treatment, children also suffered a very high number of accidents from machines that often broke down and had no safety guards
 http://www.spartacus.schoolnet.co.uk/IRaccidents.htm


 
The Industrial Revolution
 http://history1700s.about.com/homework/history1700s/library/weekly/aa090697.htm?once=true&
Overview 

The Industrial Revolution changed manufacturing by changing the way people worked. For one thing, it brought work out of the home and centralized it in the factory. 

Inventions 

Necessity is the mother of invention; therefore, it was necessity that brought about the revolution, especially in manufacturing. The use of machines enabled goods to be produced in more quantities and cheaper for both producer and consumer. 

Before the introduction of machines and the factory setting, hand manufactured goods, in single homes or cottages, where the owner worked side by side with his employees was normal. This changed  with the introduction of machines and mass production. 

The Industrial Revolution lead to several other revolutions as technology became more sophisticated. The Transportation Revolution, Communications Revolution and the Information Revolution all can trace their roots in the Industrial Revolution. 


 
Class 11
 
 
 
 
 
 
 
 
 
 
 
 
 

Class 11
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

Class 11


Industrial Revolution
Steam Power
"The steam engine can, with justification, be claimed as the most important single invention of the Industrial Revolution. It enabled mines to be drained to greater depths than were hitherto economically possible and so helped provide the coal, iron
and other metals that were vital to the expansion of industry."


Thomas Savery 1650-1716, steam pump

Savery, a military engineer, introduced his steam-operated pump in 1698. The problem faced by his invention was that the design was not very safe to use in coal mines for pumping water because the fire which heated the boiler, to make the steam (in Savery's design) had to be very close to the water being pumped. This meant that sometimes the fire heating the boiler could cause the coal dust to explode, causing the mine to cave in. Savery's design however was suitable for use in pumping water for systems above ground.

p. 158 from Children of Prometheus



Thomas Newcomen 1663-1729, Steam Engine
"Newcomen built an engine with a piston working in a vertical cylinder and a massive overhead rocking beam connected to the mine pumps. In 1712 the first practical steam engine in the world was set to work at a South Stafforshire colliery and within a few years they were being built in almost every mining area of Britain. Their use quickly spread to many countries in Europe and Scandinavia and they were soon employed for water supply purposes."
http://www.libertynet.org/newcomen/thomas.html
 
 
The steam engine can, with justification, be claimed as the single most important invention of the Industrial Revolution.It enabled mines to be drained to greater depths than were previously economically possible and so helped provide the coal, iron and other metals that were vital to the expansion of industry.

"Thomas Newcomen has been overshadowed by the better known scotsman James Watt, who is still, incorrectly, known as the "inventor" of the steam engine beginning in 1765. In the late eighteenth century numerous Newcomen engines were used to power factories for those who could not pay the very high charges for Watt's more advanced engines. The number of Newcomen engines built were in thousands, compared with hundreds for Watt's engines, and remained in operation for much of the 19th century."

The advantage to Newcomen's steam engine was that it could be installed at the top of the mine shaft, away from the coal dust, with no risk to fire in the boiler sparking the coal dust in the drifts.



James Watts 1736-1819, Watt's Steam Engine

Watt's improvement was based on his recognition that there was significant heat loss as the cylinder alternately cooled and heated in each cycle. 
p. 159 from Children of Prometheus

How did James Watt's made improvements to the design of Thomas  Newcomen's steam engine. Essentially, Watt produced a steam engine that cooled the used steam in a condenser separate from the main cylinder. Watt continued to improve his steam engine, adapting it to run many different kinds of machinery. As a result of his work, steam eventually powered much of the growing industrial revolution. 

Bio of James Watt at
http://www.spartacus.schoolnet.co.uk/SCwatt.htm
includes and explanation of the origin of the term "horsepower"

"Watt calculated that a horse exerted a pull of 180 lb., therefore, when he made a machine, he described its power in relation to a horse, i.e. "a 20 horse-power engine". Watt worked out how much each company saved by using his machine rather than a team of horses. The company then had to pay him one third of this figure every year, for the next twenty-five years. When James Watt died in 1800 he was a very wealthy man."

.
Class 11
 
 
 
 
 
 
 
 

Class
11


Industrial Revolution

Locomotives
 

the origins of the first locomotives
 http://www.uh.edu/engines/epi109.htm

George Stephenson
1814 he had constructed a locomotive that could pull thirty tons up a hill at 4 mph. Stephenson called his locomotive, the Blutcher, and like other machines made at this time, it had two vertical cylinders let into the boiler, from the pistons of which rods drove the gears. Where Stephenson's locomotive differed from those produced by John Blenkinsop, William Hedley and Timothy Hackworth, was that, unlike these previous inventors, Stephenson's invention used gears which drove the flanged wheels directly. The Blutcher was the first successful flanged-wheel adhesion locomotive. Stephenson continued to try and improve his locomotive and in 1815 he changed the design so that the connecting rods drove the wheels directly.
http://www.spartacus.schoolnet.co.uk/RAstephensonG.htm
In 1823 George Stephenson and his son Robert Stephenson, + others, formed a company to make the locomotives. The Robert Stephenson & Company,  became the world's first locomotive builder.

.
Class
11

Industrial 
Revolution

Locomotives
 

VIDEO to be shown in class

titled "The Golden Age of Steam: Locomotives".

.
Class 11
 
 
 
 
 
 
 
 

Class
11


Industrial Revolution

Eli Whitney & The Cotton Gin
The cotton gin, invented in 1793, (short for cotton engine) was a machine for getting seeds out of cotton. Where before the seeds had to be picked by hand, slaves used the machines to significantly increase production.

wool manufacturing vs. cotton processing and the power loom
- textile plants

The cotton industry in England
 http://www.spartacus.schoolnet.co.uk/TEXcotton.htm



The Spartacus Internet Encyclopedia section on slavery in the context of the Industrial Revolution
 http://www.spartacus.schoolnet.co.uk/slavery.htm
- slavery for large cotton plantations