Search results for fractal

Nanomaterials May 9, 2012

Portable diagnostics designed to be shaken, not stirred

As medical researchers and engineers try to shrink diagnostics to fit in a person's pocket, one question is how to easily move and mix small samples of liquid.

Mathematics Apr 26, 2012

Mathematics: First-ever image of a flat torus in 3D

Just as a terrestrial globe cannot be flattened without distorting the distances, it seemed impossible to visualize abstract mathematical objects called flat tori in ordinary three-dimensional space. However, a French team ...

Biotechnology Mar 12, 2012

A new view of DNA

While it’s clear that DNA sequencing has been an indispensable tool in understanding any number of biological processes, new research from Harvard suggests that how DNA is packed into cells may be at least as important ...

Nanomaterials Mar 5, 2012

Tiny fractal trees for solar power

Microscopic "fractal trees" grown from silver could be the basis of a new type of solar cell, say chemists at the University of California, Davis.

Nanomaterials Feb 28, 2012

'Power Felt' uses body heat to generate electricity

(PhysOrg.com) -- Among the many applications of flexible thermoelectric materials is a wristwatch powered by the temperature difference between the human body and the surrounding environment. But if you wanted this watch ...

Astronomy Feb 28, 2012

New model provides different take on planetary accretion

(PhysOrg.com) -- The prevailing model for planetary accretion, also called fractal assembly, and dating back as far as the 18th century, assumes that the Solar System’s planets grew as small grains colliding chaotically, ...

Mathematics Feb 21, 2012

Researchers find classical musical compositions adhere to power law

(PhysOrg.com) -- A team of researchers, led by Daniel Levitin of McGill University, has found after analyzing over two thousand pieces of classical music that span four hundred years of history, that virtually all of them ...

Mathematics Jan 25, 2012

Mathematics confirm the chaos of the Spanish labor market

Unemployment time series in Spain behave in a chaotic way according to a study at the University of Seville. Such chaos demonstrates the complex and unpredictable nature of the Spanish labour market in the long run. However, ...

General Physics Jan 4, 2012

Leonardo da Vinci's tree rule may be explained by wind

(PhysOrg.com) -- More than 500 years ago, Leonardo da Vinci observed a particular relationship between the size of a tree’s trunk and the size of its branches. Specifically, the combined cross-sectional areas of a tree’s ...

Cell & Microbiology Dec 7, 2011

Cellular automaton model predicts how hair follicle stem cells regenerate

Your hair -- or lack of hair -- is the result of a lifelong tug-of-war between activators that wake up, and inhibitors that calm, stem cells in every hair follicle on your body, according to Cheng-Ming Chuong, M.D., Ph.D., ...

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