public marks

PUBLIC MARKS from shankargallery with tags c & water

01 February 2007

The Starving Ocean

This is a personal website, documenting my independent research into today's changing marine ecosystem. An alternative explanation is offered, which I am convinced may be driving many broad trends: that centuries of human fishing has removed such a quanti

Underwater Photographer :: Underwater Director :: Ric Frazier

Native Texan, Ric Frazier's photographic journey began with participating in and shooting the skateboarding scene. Many scrapes and scars later, swimming with the sharks seemed like an equally stimulating experience. This led this aqua man to pursue his i

31 January 2007

Science Geeks» Blog Archive » Science in the News- A Shortage of Water

In the western part of the United States, the biggest drought for 500 years has occured. The area called the Colorado River Basin, which stretches from Wyoming to Arizona, is where the drought is worst

Water For Life, Inc.

Water for Life, Inc. We are a non-profit organization dedicated to protecting and promoting agricultural water rights while advocating responsible stewardship of the land.

Pakistan Water Gateway - Home

Pakistan Water Gateway is intended to enhance access to information related to water resources and issues in Pakistan available on the World Wide Web. It is a pioneering web-based knowledge product archiving information on a range of such issues pertainin

29 January 2007

Saudi Aramco World : The Art and Science of Water

Saudi Aramco, the oil company born as an international enterprise 75 years ago, distributes Saudi Aramco World to increase cross-cultural understanding. - Topics

Al-Jazari was the most outstanding Mechanical Engineer of his time. His full name was Badi Al-Zaman AbulI-Ezz Ibn Ismail Ibn Al-Razzaz Al-Jazari and he lived in Diyar-Bakir (in Turkey) during the 6th century AH (12th century CE).

Al Jazari and the History of the Water Clock

Al Jazari and the History of the Water Clock :Al-Jazari’s full name is given at the start of his book[1] He was al-Shaykh Ra’is al-A’mal Badi’ al-Zaman Abu al-‘Izz ibn Isma’il ibn al-Razzaz al

28 January 2007

CLEPSYDRA : Telling the Time : the story of clocks

Several other methods of telling the time were in common use before the modern clock was invented. The ancient Egyptians, for instance, developed a water clock. This was a neat device which consisted of two cans, placed one on top of the other. At first,

Origins of Science

~1400 BC An intricate clock, measuring flow of water, deposited in the tomb of Amenophis III demonstrates domination of first experimental science by Egyptians. The remains of glass furnaces discovered by Flinders-Petrie at Tel-El-Amarna in Egypt illustra

CTESIBUS : Timeline of Robotics part 1

270 BC Ctesibus ('ti sib ee uhs') Alexandria designs water clock.Water clocks are a big breakthrough for timepieces. Up until then the Greeks used hour glasses that had to be turned over, after all the sand ran through. Ctesibus' invention changes this be

water wheels hydraletes : RTQ

Probably the oldest reference is from Strabo writing about 24BC. He writes about a "hydraletes" (water wheel for grinding "corn").This wheel was supposedly found existing at Cabiera in the Pontus and formed part of the property lost by Mithradates when h

Archaeological Atlas of the Aegean //HYDRAULIS

musical instrument invented by the engineer "Ktesibios" from Alexandria, in the 3rd century BC. It was transmitted to the West via Byzantium and is the precursor of the church organ. Music was produced by controlling the flow of air through bronze pipes.

About the Ancient Hydraulis

Invented by Ctesibius of Alexandria in the 3rd Century B.C., the hydraulis was the first keyboard musical instrument and the ancestor of the modern church organ. In 1992 Greek archaeologists recovered a fragmentary hydraulis dating from the 1st Century B.

CLEPSYDRA : Water clock - Biocrawler

A water clock or clepsydra is a device for measuring time by letting water regularly flow out of a container usually by a tiny aperture. Since the rate of flow of water is very difficult to control precisely, water clocks could never achieve high accuracy

HYDRAULUS : Greek and Roman Pipe Organs

After a careful study of all known representations of the Hydraulus on contorniates, pictures in ancient manuscripts, and a well-preserved model in pottery found at Carthage in 1885, the Rev. F.W. Galpin has succeeded in constructing a complete working mo