The History and Wonders of Ancient Technology and Its Evolution

Thursday, May 9, 2013

Tuesday, May 7, 2013

Sources

History of technology 2001 ongoing May Seventh 2013 http://www.historyworld.net/wrldhis/PlainTextHistories.asp?groupid=1233&HistoryID=ab11&gtrack=pthc

History of technology 2001 ongoing May Seventh 2013 http://www.historyworld.net/wrldhis/PlainTextHistories.asp?groupid=1233&HistoryID=ab11&gtrack=pthc

History of technology 2001 ongoing May Seventh 2013 http://www.historyworld.net/wrldhis/PlainTextHistories.asp?groupid=1232&HistoryID=ab11&gtrack=pthc#1245

History of technology 2001 ongoing May Seventh 2013 http://www.historyworld.net/wrldhis/PlainTextHistories.asp?groupid=1233&HistoryID=ab11&gtrack=pthc#1233

History of technology 2001 ongoing May Seventh 2013 http://www.historyworld.net/wrldhis/PlainTextHistories.asp?historyid=ab11

History of technology 2001 ongoing May Seventh 2013 http://www.historyworld.net/wrldhis/PlainTextHistories.asp?historyid=ab11

History of technology 2001 ongoing May ninth 2013 http://www.historyworld.net/wrldhis/PlainTextHistories.asp?groupid=1233&HistoryID=ab11&gtrack=pthc

History of technology 2001 ongoing May Seventh 2013
http://www.historyworld.net/wrldhis/PlainTextHistories.asp?historyid=ab11

May ninth 2013 https://www.google.com/search?q=technology+timeline&tbm=isch&tbo=u&source=univ&sa=X&ei=yViMUYizM8S00QHU9YGIBA&sqi=2&ved=0CC8QsAQ&biw=1920&bih=918#imgrc=TOVXu4wDj7UZ6M%3A%3Bf6D2dfv4B9R0-M%3Bhttp%253A%252F%252Fcache.gizmodo.com%252Fassets%252Fimages%252F4%252F2008%252F03%252FTrinitron-Timeline2.jpg%3Bhttp%253A%252F%252Fsmb.media.seagate.com%252F2009%252F11%252Fstorage-means-business%252Ftimelines-storage-catalysts-tv%252F%3B1999%3B753

May ninth 2013 http://youtu.be/UFwWWsz_X9s

May ninth 2013 http://youtu.be/DoLCtvDvhkI

May ninth 2013 https://www.google.com/search?q=technology+timeline&tbm=isch&tbo=u&source=univ&sa=X&ei=yViMUYizM8S00QHU9YGIBA&sqi=2&ved=0CC8QsAQ&biw=1920&bih=918#tbm=isch&sa=1&q=technology&oq=technology&gs_l=img.3..0l10.2684.2684.2.2907.1.1.0.0.0.0.128.128.0j1.1.0...0.0...1c.1.12.img.NF-NP19CO9g&bav=on.2,or.r_cp.r_qf.&bvm=bv.46340616,d.dmQ&fp=63946423fbf3e50a&biw=1920&bih=918&imgrc=P9G7lsMcOIh-0M%3A%3BhZpCPKJBD4JrZM%3Bhttp%253A%252F%252Fwww.w3ins.com%252FImages%252Ftechnology.jpg%3Bhttp%253A%252F%252Fwww.w3ins.com%252FTopNav%252FCommercial%252FIndustrySolutions%252FTechnology.aspx%3B1698%3B1131

May ninth 2013 https://www.google.com/search?q=technology+timeline&tbm=isch&tbo=u&source=univ&sa=X&ei=yViMUYizM8S00QHU9YGIBA&sqi=2&ved=0CC8QsAQ&biw=1920&bih=918#tbm=isch&sa=1&q=technology&oq=technology&gs_l=img.3..0l10.2684.2684.2.2907.1.1.0.0.0.0.128.128.0j1.1.0...0.0...1c.1.12.img.NF-NP19CO9g&bav=on.2,or.r_cp.r_qf.&bvm=bv.46340616,d.dmQ&fp=63946423fbf3e50a&biw=1920&bih=918&imgrc=vRXNYWQdZGtxAM%3A%3BcL0-9JbXTsiXVM%3Bhttp%253A%252F%252Fwww.hrtecheurope.com%252Fuploads%252Favatar%252Ftechnology.jpg%3Bhttp%253A%252F%252Fwww.hrtecheurope.com%252Fblog%252F2012%252F02%252Fwhy-dont-we-use-technology%252F%3B1280%3B879

the ten fundamental reasons for technology in education (C) Copyright John Page 2007 ongoing may ninth 2013 http://www.mathopenref.com/site/techreasons.html

what is technology? may ninth 2013 http://atschool.eduweb.co.uk/trinity/watistec.html

Brainy quote: technology quotes Copyright© 2001 - 2013 BrainyQuote® BookRags Media Network may ninth 2013 http://www.brainyquote.com/quotes/topics/topic_technology.html

Ironbridge: AD 1779

In 1779 the world's first iron bridge, which reached over 100 feet, is erected for Abraham Darby. But in this new technology little time need be spent in assembling the parts. The lightness of the structure strikes all observers. It still stands to this day.

Machine tools, gun barrels and cylinders: AD 1774-1800

John Wilkinson has been building up a lucrative arms trade. In 1774 he invents a machine, powered by a water wheel, which can drill with unprecedented accuracy through the length of a cast-iron cylinder to create the barrel of a cannon. It is a turning point in the development of machine tools. James Watt realizes that Wilkinson's new machine is capable of the precision required for an efficient steam-engine cylinder. In 1775 Wilkinson delivers the first of the cylinders to other countries. Instead of the usual pumping of water, it is to undertake a more sophisticated role - working the bellows which pump air into one of Wilkinson's blast furnaces of molten iron. The owners of the mills and mines of the Industrial Revolution have many tasks to which a source of mechanical power could be usefully applied. The reports are good. By the time Watt's patent expires, in 1800, more than 500 engines have been installed around the country and further. The increased efficiency of the new engines, enables Boulton and Watt to charge by a novel and very profitable method. The machines are provided and installed free, and customers pay a royalty of one-third of the amount saved on fuel. From 1783 the saving is even greater, because in that year Watt puts on the market another major innovation - his double-acting engine.

The Millennium Clock

A millennium clock: AD 1746

In 1746 a French clockmaker named Monsieur Passemont makes a clock which is the first in the world to be able to take account of a new millennium. Its dials can reveal the date of the month in any year up to AD 9999. It is a long case clock, in an ornate baroque casing that holds a mechanism having more than 1000 interconnecting wheels and cogs. As they turn at their different speeds with each swing of the pendulum, they cope with the complexities of the Julian calendar. Thus, for example, one large brass wheel has the responsibility of inserting February 29 in each leap year. This wheel takes four years to complete a single revolution. When it has come full circle, it pops in the extra day. Louis XV buys the clock in 1749, three years after its completion. It is still ticking away two and a half centuries later in the palace of Versailles. The minutiae of daily time-keeping are also adjusted by hand, but Monsieur Passemont's masterpiece requires no assistance in making a significant change in the first digit of its year display.

Monday, May 6, 2013

Domestic Clocks

Domestic clocks: 15th century AD

After the success of the clocks in Europe's cathedrals in the 14th century, and the introduction of the clock face in places such as walls, kings and nobles naturally want this impressive technology at home. The first domestic clocks, in the 15th century, are smaller and simpler versions of the cathedral clocks which are powered by hanging weights. It shows the time to the great man's family and household by a single hand working its way round a 12-hour circuit on the clock's face. But before the middle of the 15th century a development of great significance occurs. The earliest surviving spring-driven clock dates from about 1450. By that time clock makers have not only found out how to transmit power to the mechanism from a coiled spring. They have also devised a simple solution to the problem inherent in a coiled spring which steadily loses power as it uncoils. The solution to this is the fusee. The fusee is a cone, bearing a spiral of grooves on its surface, forming part of the axle driving the wheels of the clock mechanism. The length of gut linking the drum of the spring to the axle is wound round the fusee. It lies on the thinnest part of the cone when the spring is fully wound and reaches its broadest circumference by the time the spring is weak. Increased leverage counteracts decreasing strength. These two devices make possible clocks which stand on tables, clocks which can be taken from room to room, even clocks to accompany a traveler in a carriage. Eventually, they make possible the pocket watch as well.

The Steam Pump

Steam pump: AD 1698-1702

Thomas Savery, in 1698 obtains a patent for an engine to raise water by the impel-lent force of fire. It turns out to be the world's first steam engine. Originally designed purely as a pump, it has no piston but relies on the power of a vacuum. A metal cylinder is filled with steam from a boiler. Cold water is then poured over the outside, condensing the steam within and creating a vacuum which sucks water up through a pipe at the base. When the cylinder is full of water, the valve from below is closed. Steam is again introduced, forcing the water out of the cylinder through another valve. With the cylinder again full of steam, the process is repeated. As it turns out, the maximum levels of pressure and vacuum achieved by Savery cannot lift water more than about twelve yards. Instead he finds his main customers among progressive country landowners, who are attracted by being at the cutting edge of technology. They use Savery's pumps to raise water for their houses and gardens.