Search results for Brownian motion

Biochemistry Aug 24, 2010

Visualizing viruses: new research pinpoints tiny invaders

In the war against infectious disease, identifying the culprit is half the battle. Now, research professor Shaopeng Wang and his colleagues from the Biodesign Institute at Arizona State University, describe a new method for ...

Mathematics Jun 29, 2010

Stirring the ocean: Calculating the role of the oceans' swimmers

(PhysOrg.com) -- The world's oceans, we know, are constantly shaken and stirred by the winds and the tides and other physical forces of nature. But what about fish and other swimming marine life? Do they stir the ocean, too?

General Physics May 20, 2010

Physicists prove Einstein wrong with observation of instantaneous velocity in Brownian particles

A century after Albert Einstein said we would never be able to observe the instantaneous velocity of tiny particles as they randomly shake and shimmy, so called Brownian motion, physicist Mark Raizen and his group have done ...

General Physics Apr 7, 2010

Scientists find errors in hypothesis linking solar flares to global temperature

(PhysOrg.com) -- The field of climate science is nothing if not complex, where a host of variables interact with each other in intricate ways to produce various changes. Just like any other area of science, climate science ...

Biochemistry Mar 10, 2010

Behavior of single protein observed in unprecedented detail by Stanford chemists

(PhysOrg.com) -- For the first time, researchers have been able to confine and study an individual protein, one that plays a key role in photosynthesis, without having to pin it down so tightly as to alter its fundamental ...

Quantum Physics Mar 10, 2010

Quantum Walk in Laboratory

A team of physicists headed by Christian Roos and Rainer Blatt from the Institute of Quantum Optics and Quantum Information of the Austrian Academy of Sciences realize a quantum walk in a quantum system with up to 23 steps. ...

Engineering Feb 26, 2010

Micro-ear lets scientists eavesdrop on the micro-world

(PhysOrg.com) -- Acting as a microscope for sound, a new device called a micro-ear could make objects on the micro-scale audible. The device could enable scientists to listen to the sounds that cells and bacteria make as ...

Condensed Matter Jan 21, 2010

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

(PhysOrg.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

(PhysOrg.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 Physics Oct 14, 2009

Quantum-limited Measurement Method for Nanosensors

(PhysOrg.com) -- (PhysOrg.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. ...

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