News tagged with brownian particles
Eddies in Einstein's formula
(PhysOrg.com) -- How does a microscopic particle behave in a liquid? New results published in the journal Nature show that Einstein’s formula for describing this situation needs a little adjustment. This w ...
Oct 07, 2011 |
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The dance of hot nanoparticles
(PhysOrg.com) -- "Brownian motion is a very old concept," Klaus Kroy tells PhysOrg.com. "The laws explaining it were formulated more than a century ago by Albert Einstein. However, we are finding some intere ...
Sep 08, 2010 |
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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 ...
May 20, 2010 |
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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 ...
Jul 27, 2009 |
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Search results for brownian particles
Researchers unlock mystery of how 'handedness' arises
The overwhelming majority of proteins and other functional molecules in our bodies display a striking molecular characteristic: They can exist in two distinct forms that are mirror images of each other, like ...
May 08, 2012 |
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A guide to self-assembly
Imagine gently shaking a box of Lego building blocks, and then looking inside to find a series of complete structures.
Apr 18, 2012 |
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Cosmology in a Petri dish
Scientists have found that micron-size particles which are trapped at fluid interfaces exhibit a collective dynamic that is subject to seemingly unrelated governing laws. These laws show a smooth transitioning ...
Jan 26, 2012 |
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Mathematically detecting bubbles before they burst
From the dotcom bust in the late nineties to the housing crash in the run-up to the 2008 crisis, financial bubbles have been a topic of major concern. Identifying bubbles is important in order to prevent collapses that can ...
Oct 31, 2011 |
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NIH grant ratchets up ASU research in molecular motors
Empowered by a $1.2 million grant from the National Institutes of Health (NIH), Arizona State University scientist Wayne Frasch is deciphering how one of the world’s smallest molecular motors works in ...
May 30, 2011 |
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Where no lab has gone before: Single-Molecule Electrokinetic Traps
(PhysOrg.com) -- To study the behavior of large protein complexes and long DNA chains in solution, researchers use so-called molecular traps. However, earlier traps have proven ineffective when working with s ...
May 25, 2011 |
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'Kinks' in tiny chains reveal Brownian rotation
(PhysOrg.com) -- Rice University researchers have created a method to measure the axial rotation of tiny rods. The technique detailed in a paper by Sibani Lisa Biswal and her colleagues appears this month ...
May 19, 2011 |
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An overlooked detail may invalidate the results of some prior experiments with nanoparticles
(PhysOrg.com) -- As any bench scientist will tell you, experimental design can be the very devil. Try as one might, it can be difficult to recognize, much less eliminate, the many extraneous factors that might ...
Nanotechnology / Bio & Medicine
Apr 27, 2011 |
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Scientists say ocean currents cause microbes to filter light
(PhysOrg.com) -- Adding particles to liquids to make currents visible is a common practice in the study of fluid mechanics, one that was adopted and perfected by artist Paul Matisse in sculptures he calls Kalliroscopes. Matisse’s ...
Space & Earth / Earth Sciences
Feb 24, 2011 |
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Norbert Wiener's earlier work may prove more important
Norbert Wiener, the mathematician and former child prodigy who won the National Medal of Science in 1963, figures prominently in MIT lore. After entering Tufts University at 11 and getting his PhD from Harvard ...
Jan 19, 2011 |
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