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724

 
Sci & Tech Chronology: In the year 724

Tools

Buddhist monk I-Xing and Chinese engineer Lyang Lingdzan build a water clock that has an escapement, the device that causes a clock to tick. The escapement opens and closes a valve, making the flow of water maintain a more constant rate. The clockwork is used to power various astronomical devices rather than to indicate the hour. See also 500 Tools; 1088 Tools.


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Wikipedia: 724
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Millennium: 1st millennium
Centuries: 7th century8th century9th century
Decades: 690s  700s  710s  – 720s –  730s  740s  750s
Years: 721 722 723724725 726 727
For the area code, see Area code 724
724 by topic
Politics
State leaders – Sovereign states
Birth and death categories
BirthsDeaths
Establishment and disestablishment categories
Establishments – Disestablishments
724 in other calendars
Gregorian calendar 724
DCCXXIV
Ab urbe condita 1477
Armenian calendar 173
ԹՎ ՃՀԳ
Bahá'í calendar -1120 – -1119
Berber calendar 1674
Buddhist calendar 1268
Burmese calendar 86
Byzantine calendar 6232 – 6233
Chinese calendar 癸亥年十二月初一日
(3360/3420-12-1)
— to —
甲子年十二月十一日
(3361/3421-12-11)
Coptic calendar 440 – 441
Ethiopian calendar 716 – 717
Hebrew calendar 4484 – 4485
Hindu calendars
 - Vikram Samvat 779 – 780
 - Shaka Samvat 646 – 647
 - Kali Yuga 3825 – 3826
Holocene calendar 10724
Iranian calendar 102 – 103
Islamic calendar 105 – 106
Japanese calendar
Korean calendar 3057
Thai solar calendar 1267

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Sci & Tech Chronology. History of Science and Technology, edited by Bryan Bunch and Alexander Hellemans. Copyright © 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.  Read more
Wikipedia. This article is licensed under the Creative Commons Attribution/Share-Alike License. It uses material from the Wikipedia article "724" Read more

 

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