Na pravou míru: Nezázrak islámské vědy: Difference between revisions

===Mechanical Clocks===

{{Quote||'''Co je učeno:''' Until the 14th century, the only type of clock available was the water clock. In 1335, a large mechanical clock was erected in Milan, Italy. This was possibly the first weight-driven clock.<BR><BR>'''Co by se mělo učit:''' A variety of mechanical clocks were produced by Spanish Muslim engineers, both large and small, and this knowledge was transmitted to Europe through Latin translations of Islamic books on mechanics. These clocks were weight-driven. Designs and illustrations of epi-cyclic and segmental gears were provided. One such clock included a mercury escapement. The latter type was directly copied by Europeans during the 15th century. In addition, during the 9th century, Ibn Firnas of Islamic Spain, according to Will Durant, invented a watch-like device which kept accurate time. The Muslims also constructed a variety of highly accurate astronomical clocks for use in their observatories.<ref name="Dr K. Ajram"></ref>}}

The first fully-mechanical clock (water-driven) was built by Liang Ling-Can, in China in 724 AD.<ref>[{{Reference archive|1=http://www.thocp.net/timeline/0469.htm|2=2011-04-18}} The Prehistoric Era: 469 BC - 1300 AD] - The History of Computing Project, accessed April 18, 2011</ref><ref>[{{Reference archive|1=http://web.archive.org/web/20030908211617/http://www.labyrinth.net.au/~saul/history/time.html|2=2011-04-18}} Time Bandit…a brief history of time] - Labyrinth, accessed April 18, 2011</ref> Some people think that the first weight-driven clock was invented by Pacificus, archdeacon of Verona in the 9^th century.<ref>[{{Reference archive|1=http://web.archive.org/web/20051124113730/http://www.bartleby.com/65/cl/clock.html|2=2011-04-18}} Clock] - The Columbia Encyclopedia, Sixth Edition.  2001-05.</ref>