News tagged with hierarchical structures
In nanorod crystal growth, nanoparticles seen as artificial atoms
In the growth of crystals, do nanoparticles act as "artificial atoms" forming molecular-type building blocks that can assemble into complex structures? This is the contention of a major but controversial theory ...
May 24, 2012 |
4.8 / 5 (6) |
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A spider web's strength lies in more than its silk
While researchers have long known of the incredible strength of spider silk, the robust nature of the tiny filaments cannot alone explain how webs survive multiple tears and winds that exceed hurricane strength.
Technology / Computer Sciences
Feb 01, 2012 |
4.7 / 5 (11) |
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A model could guide the design of artificial composites
Many biomaterials such as bone, shell and mineralized tendon have a hierarchical structure that provides the material with exceptional mechanical and load-bearing properties, even though the building blocks ...
Sep 19, 2011 |
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An egalitarian Internet? Not so, study says
(PhysOrg.com) -- The Internet is often thought of as a forum that enables egalitarian communication among people from diverse backgrounds and political persuasions, but a University of Georgia study reveals ...
Other Sciences / Social Sciences
Jun 10, 2011 |
3.9 / 5 (8) |
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Microstructure-induced biomechanical responses of dragonfly wing veins
Wang's research team discovered the sandwich microstructure of dragonfly wing veins1 and recently revealed the organic junction between these longitudinal veins and membranes of the dragonfly wing2. Based on observed mic ...
Jun 03, 2011 |
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First super-massive black holes were born 'soon' after Big Bang (w/ Video)
Astronomers believe they have discovered the origin of our universe's first super-massive black holes, which formed some 13 billion years ago.
Aug 25, 2010 |
4.9 / 5 (16) |
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Birds Of A Feather Attack Together
Last summer, physicist Suzanne Amador Kane at Haverford College in Pennsylvania set up an experiment looking at how flocks of small birds on her campus -- swallows -- defend themselves from predators by ganging ...
May 04, 2010 |
4.6 / 5 (5) |
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The power of doctors makes elderly patients passive
Elderly patients are often critical towards the meeting with the doctor. Hierarchical structures, time pressure and traditions in the health care sector make these patients and their relatives passive when facing the doctor ...
Oct 27, 2009 |
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