30 Jun '14, 11pm

Hanhowuz Reservoir, Turkmenistan: An engineering wonder and boon for citizens in Turkmenistan is also an envir...

Hanhowuz Reservoir, Turkmenistan: An engineering wonder and boon for citizens in Turkmenistan is also an envir...

Turkmenistan is a desert country that lies east of the Caspian Sea and borders Iran, Afghanistan, Uzbekistan, and Kazakhstan. Annual precipitation across the country ranges from 300 millimeters (12 inches) in the mountains to 80 millimeters (3 inches) in the desert northwest. In a country just larger than California, nearly 80 percent of the land is defined as desert. Despite the harsh, dry environment, these desert expanses were once part of the ancient east-west trade route between the Roman Republic and Han Dynasty. As part of the Silk Road from Europe to China, Turkmenistan was coveted by the Mongols, Turks, and Russians. Each have taken turns ruling the region over the past two millennia. In the 18th century, people in the region started to think about taming the great Garagum Desert (also known as the Kara Kum or Karakumsky). The idea was to bring water southward fro...

Full article: http://earthobservatory.nasa.gov/IOTD/view.php?id=83940&s...

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spectrum.ieee.org 30 Jun '14, 3pm

That’s a surprisingly tough question to answer. For one thing, engineering may very well be bereft of heroes because nobod...