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Search results for Brownian motion

Condensed Matter Jan 21, 2010

Watching crystals grow provides clues to making smoother, defect-free thin films

(鶹ԺOrg.com) -- To make thin films for semiconductors in electronic devices, layers of atoms must be grown in neat, crystalline sheets. But while some materials grow smooth crystals, others tend to develop bumps and defects ...

Biochemistry Dec 17, 2009

Within a cell, actin keeps things moving

(鶹ԺOrg.com) -- Using new technology developed in his University of Oregon lab, chemist Andrew H. Marcus and his doctoral student Eric N. Senning have captured what they describe as well-orchestrated, actin-driven, mitochondrial ...

Quantum 鶹Ժics Oct 14, 2009

Quantum-limited Measurement Method for Nanosensors

(鶹ԺOrg.com) -- (鶹ԺOrg.com) -- A team of scientists from the Max Planck Institute of Quantum Optics and the Ludwig Maximilians University have succeeded in applying a novel optical method to nano-mechanical oscillators. ...

Optics & Photonics Aug 11, 2009

Scientists control living cells with light; advances could enhance stem cells' power

University of Central Florida researchers have shown for the first time that light energy can gently guide and change the orientation of living cells within lab cultures. That ability to optically steer cells could be a major ...

Condensed Matter Aug 11, 2009

鶹Ժicists make crystal/liquid interface visible for first time

"Imagine you're a water molecule in a glass of ice water, and you're floating right on the boundary of the ice and the water," proposes Emory University physicist Eric Weeks. "So how do you know if you're a solid or a liquid?"

Soft Matter Jul 27, 2009

Rethinking Brownian motion with the 'Emperor's New Clothes'

In the classic fairy tale, "The Emperor's New Clothes," Hans Christian Andersen uses the eyes of a child to challenge conventional wisdom and help others to see more clearly. In similar fashion, researchers at the University ...

Quantum 鶹Ժics Jul 9, 2009

鶹Ժicists take first step towards super-fast search algorithms for quantum computers

When you toss a coin, you either get heads or tails. By contrast, things are not so definite at the microcosmic level. An atomic 'coin' can display a superposition of heads and tails when it has been thrown. However, this ...

Biotechnology Apr 22, 2009

Power steering for your hearing: Ears have tiny 'flexoelectric' motors to amplify sound

Utah and Texas researchers have learned how quiet sounds are magnified by bundles of tiny, hair-like tubes atop "hair cells" in the ear: when the tubes dance back and forth, they act as "flexoelectric motors" that amplify ...

General 鶹Ժics Apr 10, 2009

In Memoriam: Martin J. Klein, Historian of Modern 鶹Ժics, Edited Einstein Papers

(鶹ԺOrg.com) -- Martin Jesse Klein, a historian of modern physics and former senior editor of "The Collected Papers of Albert Einstein," passed away on March 28. He was 84 years old.

General 鶹Ժics Jan 23, 2009

Scientists use Brownian Motion to Explore How Birds Flock Together

(鶹ԺOrg.com) -- How do thousands of fish swim together in giant schools, seemingly moving as a single body? Flocks of birds, herds of beasts, and a variety of other animals in nature seem to share this same “property” ...

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