News tagged with legs
Touchscreen table computer SUR40 starts pre-orders
(PhysOrg.com) -- Microsoft and Samsung have announced the Microsoft Surface computer, called SUR40, as available for preorder, through the Samsung website, in 23 countries. The unique multi-touch screen is ...
Nov 21, 2011 |
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Solving the mysteries of short-legged Neandertals
(PhysOrg.com) -- While most studies have concluded that a cold climate led to the short lower legs typical of Neandertals, researchers at Johns Hopkins have found that lower leg lengths shorter than the typical modern human’s ...
Other Sciences / Archaeology & Fossils
Oct 20, 2011 |
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Papuan weevil has screw-in legs
(PhysOrg.com) -- New research has found that humans were not the first species to invent the nut and bolt mechanism for screwing one thing to another: weevils do the same to attach their legs to their bodies ...
Jul 01, 2011 |
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Ostriches run fast because of 'springy' tendons
Australian and U.S. researchers studying the movement of ostriches have discovered the giant flightless birds can store double the elastic energy per step in their tendons than humans can. This considerably ...
Oct 29, 2010 |
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More Realistic Biomechanics In New Computer Locomotion Model
(PhysOrg.com) -- No one has ever won a race on peg legs if they were running against others with flexible legs. But, until now, mathematical locomotion models predicted that stiff legs were the most efficient.
Mar 26, 2010 |
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Wingless ants glide to safety steering with their hind legs (w/ Video)
(PhysOrg.com) -- The tree-dwelling tropical ants Cephalotes atratus build their nests in tall trees, but launch themselves into the air when threatened by predators. Scientists studying these wingless ants h ...
Mar 18, 2010 |
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Four, three, two, one... pterosaurs have lift off
Pterosaurs have long suffered an identity crisis. Pop culture heedlessly — and wrongly — lumps these extinct flying lizards in with dinosaurs. Even paleontologists assumed that because the creatures flew, they were birdlike ...
Other Sciences / Archaeology & Fossils
Jan 06, 2009 |
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Why women wiggling in high heels could help improve prosthetic limbs and robots
People walking normally, women tottering in high heels and ostriches strutting all exert the same forces on the ground despite very differently-shaped feet, according to research funded by the Wellcome Trust ...
May 08, 2012 |
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Did bone ease acid for early land crawlers?
Here's an anatomical packing list for making that historic trip from water to land circa 370 million years ago: Lungs? Check. Legs? Check. Patches of highly vascular bone in the skin? In a new paper, scientists ...
Other Sciences / Archaeology & Fossils
Apr 24, 2012 |
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Paleontologists discover fossilized embryos of oldest aquatic reptiles
South American paleontologists report they have discovered fossilized embryos of the oldest aquatic reptiles, lagoon-dwelling "mesosaurs" that lived about 280 million years ago.
Other Sciences / Archaeology & Fossils
Mar 28, 2012 |
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Research reveals first evidence of hunting by prehistoric Ohioans
Cut marks found on Ice Age bones indicate that humans in Ohio hunted or scavenged animal meat earlier than previously known. Dr. Brian Redmond, curator of archaeology at The Cleveland Museum of Natural History, was lead author ...
Other Sciences / Archaeology & Fossils
Mar 01, 2012 |
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Why spiders do not stick to their own sticky web sites
Researchers at the Smithsonian Tropical Research Institute and University of Costa Rica asked why spiders do not stick to their own sticky webs. Repeating old, widely quoted but poorly documented studies with ...
Mar 01, 2012 |
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Two genes do not make a voter: new research
Voting behavior cannot be predicted by one or two genes as previous researchers have claimed, according to Evan Charney, a Duke University professor of public policy and political science.
Feb 29, 2012 |
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Scientists study hands of fearsome, meat-eating dinosaur
(PhysOrg.com) -- 66 million years ago, the fearsome, meat-eating dinosaur Majungasaurus crenatissimus prowled the semi-arid lowlands of Madagascar. Its powerful jaws bristled with bladelike teeth, and its st ...
Other Sciences / Archaeology & Fossils
Jan 11, 2012 |
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How the fly flies: Scientists discover gene switch responsible for flight muscle formation
Flies are real flight artists, although they only have small wings compared to their body size. Scientists at the Max Planck Institute of Biochemistry in Martinsried near Munich, Germany, recently identified ...
Nov 17, 2011 |
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Leg
A leg is a weight bearing and locomotive structure, usually having a columnar shape. During locomotion, legs function as "extensible struts" - the combination of movements at all joints can be modeled as a single, linear element capable of changing length and rotating about an omnidirectional "hip" joint.
As an anatomical animal structure it is used for locomotion. The distal end is often modified to distribute force (such as a foot). Most animals have an even number of legs.
As a component of furniture it is used for the economy of materials needed to provide the support for the useful surface, the table top or chair seat.
For more information about Leg, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
