News tagged with river valley


Researchers find the earliest evidence of domesticated maize

Researchers find the earliest evidence of domesticated maize

Other Sciences / Archaeology & Fossils

created Mar 23, 2009 | popularity 4.4 / 5 (7) | comments 0

Maize was domesticated from its wild ancestor more than 8700 years according to biological evidence uncovered by researchers in the Mexico's Central Balsas River Valley. This is the earliest dated evidence ...





Search results for river valley


Understanding interaction in virtual worlds

Technology / Computer Sciences

created Dec 23, 2009 | popularity 2.9 / 5 (9) | comments 0

New cinema blockbuster, Avatar, leapt to the top of box office charts as soon as it came out — a stunning 3D realisation of an alien world. Our fascination with themes of escape to other fantastic places and the thrill of ...


An easy way to see the world's thinnest material

Nanotechnology / Nanomaterials

created Dec 23, 2009 | popularity 4.7 / 5 (11) | comments 1

It's been used to dye the Chicago River green on St. Patrick's Day. It's been used to find latent blood stains at crime scenes. And now researchers at Northwestern University have used it to examine the thinnest material ...


Fossil shelved for a century reworks carnivore family tree

Fossil shelved for a century reworks carnivore family tree

Other Sciences / Archaeology & Fossils

created Dec 22, 2009 | popularity 4.5 / 5 (8) | comments 4

More than a hundred years after its discovery, the limbs and vertebrae of a fossil have been pulled off the shelf at the American Museum of Natural History to revise the view of early carnivore lifestyles. ...


Modern behavior of early humans found half-million years earlier than previously thought

Modern behavior of early humans found half-million years earlier than previously thought

Other Sciences / Archaeology & Fossils

created Dec 22, 2009 | popularity 4.6 / 5 (16) | comments 0

Evidence of sophisticated, human behavior has been discovered by Hebrew University of Jerusalem researchers as early as 750,000 years ago - some half a million years earlier than has previously been estimated ...


Cost-cutting Yahoo to close offices for holidays

Technology / Business

created Dec 22, 2009 | popularity not rated yet | comments 0

(AP) -- Yahoo says it will close its offices from Christmas through New Year's to help save money. The cost-cutting move ends a year in which Yahoo's revenue declined for the first time since 2001.


Glowing channels: Microanalysis system for rapid mercury detection

Chemistry / Analytical Chemistry

created Dec 22, 2009 | popularity not rated yet | comments 0

(PhysOrg.com) -- Water contaminated with mercury is very dangerous for both people and the environment, as mercury is one of the most toxic heavy metals. Though laboratory analyses do deliver precise quantitative measurements, ...


EPA, Army Corps urged to consider separating Great Lakes, river basin

Space & Earth / Environment

created Dec 21, 2009 | popularity 5 / 5 (1) | comments 0

The once-radical idea of somehow plugging the Chicago Sanitary and Ship Canal to stop the flow of unwanted species from spilling between the Great Lakes and Mississippi River basin is quickly picking up political support.


Mystery of golden ratio explained

Researcher explains mystery of golden ratio

Other Sciences / Mathematics

created Dec 21, 2009 | popularity 2.6 / 5 (21) | comments 7

The Egyptians supposedly used it to guide the construction the Pyramids. The architecture of ancient Athens is thought to have been based on it. Fictional Harvard symbologist Robert Langdon tried to unravel ...


Apple iPhones dominate the smartphone market

Google phone revolution or misdirection?

Technology / Business

created Dec 19, 2009 | popularity 3.8 / 5 (4) | comments 1

Google smartphones are either a daring foray into the telecom world or a misunderstood test of the next-generation of the Internet giant's Android mobile operating system.


Not easy being green

Not easy being green

Space & Earth / Environment

created Dec 18, 2009 | popularity 3.7 / 5 (3) | comments 0

(PhysOrg.com) -- It was a battle to save a cherished piece of nature from the forces of economic growth. Preservationists formed groups to present their case, and public figures across the country spoke up ...



List of search results for river valley