An Encyclopedia of the History of Technology part 108 pptx
An Encyclopedia of the History of Technology part 108 pptx
... 282 poppet 282 slide 282, 344–5,404 thermionic 41, 727, see also diode; triodeWankel rotating disc 328Van Harinxma Canal 492Van Starkenborgh Canal 492Vanguard rocket 656Variomatic belt dirve ... machines 417transfer printing (pottery) 194transformers 371transistor radios 728transistors 42, 419, 703transmission cables 371–2transplanting 773transporter bridges 496, 518trapetum 263Travels ... 842–3Sketches of the Coal Mines in Northumberland andDurham (Hair) 266Skylab space station 654skyscrapers 896–9slag 151 as fertilizer 170slash and burn farming 776, 779Slaski Canal 505slate,...
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An Encyclopedia of the History of Technology part 1 potx
... Devices and Mechanisms 1Ian McNeil The place of technology in history 1Science and technology 2 The archaeological ages 4 The seven technological ages of man 5 The first age: man, the hunter, ... fire 5 The second age: the farmer, the smith and the wheel 11 The third age: the first machine age 22 The fourth age: intimations of automation 27 The fifth age: the expansion of steam 31 The sixth ... 501Sweden 501 The Soviet Union 502Eastern Europe 504Spain and Portugal 505 The Suez Canal 505Japan 506Canada 506 The United States 509 The Panama Canal 514Canal and river craft 514 The contemporary...
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An Encyclopedia of the History of Technology part 2 doc
... how they fought their wars and which side won, was largely dependenton the state of their technology and that of their enemy. Their motivation wasmore often than not economic, and economic history ... history and the history of technology can surely be considered as twin hand-maidens, the one almosttotally dependent on the other. So far as social history is concerned, the lot of the common man, ... is strange that, in the study and teaching of history, so little attention is paidto the history of technology. Political and constitutional history, economic history, naval and military history, ...
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An Encyclopedia of the History of Technology part 3 docx
... practice, and this is the first step in the process of moving forward to a new solution. Thus the history of technology and the history of invention are very much the same.Why study the history of technology? ... whostudied, rather than the rise and fall of civilizations, the rise and fall of technologies the technologies of hunting and weapon-making, of herding anddomesticating animals, of crop-growing and agriculture, ... promises to change human life moreswiftly and more radically than any of its predecessors. THE FIRST AGE: MAN, THE HUNTER, MASTERS FIRE The history of technology can be said to be older than man himself,...
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An Encyclopedia of the History of Technology part 4 pps
... date.These again were Egyptian and represent the first known application of anatural source of power other than animal power, the wind. The use of windpower to drive the rotating sails of a ... numbers of slaves, there was a demand for such mechanization as was available and the successors of the Romans continued to build water mills. At the time of the Domesday survey there was an estimated ... to their cities. The construction of river bridges often involved the building of coffer dams of timber piles, sealed with clay, and in the building of these two machines were used: first, the...
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An Encyclopedia of the History of Technology part 5 docx
... formeasuring the bores of cannon and the diameter of cannon balls. The crank An important development in the Middle Ages was that of mechanisms for the interconversion of rotary and reciprocating ... weight. All the gears were of brass.Galileo’s observations of the swinging altar lamp in the cathedral of Pisamarked the start of the use of the pendulum as a means of controlling the speed of clocks. ... acraftsman who was the first to calculate the taper required in the walls of an Egyptian water-clock to ensure a constant rate of flow of the water through the hole at the bottom as the head of water...
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An Encyclopedia of the History of Technology part 6 docx
... in the materials used in buildings. They caused the decline of manytowns and villages which were not served by the railway lines. They speededup the mails and greatly accelerated the spread of ... spread of news by the rapiddistribution of the daily papers. They popularized seaside and other holidayresorts and improved communications by their use of the telegraph. Most of all, the railways ... business from the turnpike roads and the canalsuntil the horse and the canal barge became almost obsolete. More and morepeople travelled, many of whom had never travelled outside their own villagesbefore....
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An Encyclopedia of the History of Technology part 7 pdf
... after the arrival of the Spanish invaders by the North American Indian:Giovanni Verazzano, who visited the Atlantic Coast in 1524, commented upon the vast quantities of copper owned by the Indians, ... ridiculous and to many others a threat to the dignity of themselves as members of the human race or worse, a threat to the veryexistence of humanity as the only reasoning animal living on the planet.Americans ... to complain about. Humans aren’t the best ditch-diggers in the world, machines are. And humans can’t lift as much as a crane. They can’tfly without an airplane. And they can’t carry as much as...
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An Encyclopedia of the History of Technology part 8 ppt
... Tepe Giyan, in the Persian highlands, during the 4th millennium, and subsequently movedsouthwards to Sumeria and the Persian Gulf, and westwards to the Mediterranean seaboard, during the third ... the fourthmillennium BC and were found in the 1930s at the site of Tepe Giyan, nearNahavand in Western Iran. This mountainous region, situated midway between the Persian Gulf and the Caspian ... constituent of ancient copper.It has been suggested that the Sumerians who made these artefacts camefrom the Caucasus and were instrumental in transferring the arts of metallurgyfrom the land of Elam...
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An Encyclopedia of the History of Technology part 9 doc
... found its wayinto many of the later Roman bronzes, which by the middle of the second centuryAD tended to contain comparable quantities of zinc and tin. The characteristics of these alloys, which ... trulyRoman in origin, the improved standards of living associated with the rapiddissemination of the Roman way of life stimulated metallurgical demand,and encouraged the rapid diffusion of improved ... fourth-millennium sites of Anan and Hissar III in Iran andNaqada in Egypt. The earliest evidence of lead being used for aesthetic rather than practicalpurposes is provided by an Egyptian figurine 5cm...
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