Search results for Brownian motion

Nanomaterials Mar 21, 2017

Light-controlled gearbox for nanomachines

Rewarded with a Nobel Prize in Chemistry in 2016, nanomachines provide mechanical work on the smallest of scales. Yet at such small dimensions, molecular motors can complete this work in only one direction. Researchers from ...

Quantum Physics Feb 27, 2017

Mystery of the dark solitons

When your heart beats, blood courses through your arteries in waves of pressure. These pressure waves manifest as your pulse, a regular rhythm unperturbed by the complex internal structure of the body. Scientists call such ...

Quantum Physics Feb 27, 2017

Destabilized solitons perform a disappearing act

When your heart beats, blood courses through your veins in waves of pressure. These pressure waves manifest as your pulse, a regular rhythm unperturbed by the complex internal structure of the body. Scientists call such robust ...

General Physics Feb 2, 2017

Research pushes concept of entropy out of kilter

Entropy, the measure of disorder in a physical system, is something that physicists understand well when systems are at equilibrium, meaning there's no external force throwing things out of kilter. But new research by Brown ...

Other Jan 24, 2017

Video: The universe in a cup of coffee

Reactions, the ACS YouTube channel that covers the chemistry of everyday life, is joining PBS Digital Studios, a network of original web series from PBS that explore science, arts, culture and more. To celebrate, the Reactions ...

Nanophysics Nov 11, 2016

Scientists develop light-driven motors to power nanorobots of the future

A collaborative of scientists has proposed a model for a nanosized dipole photomotor based on the phenomenon of light-induced charge redistribution. Triggered by a laser pulse, this tiny device is capable of directed motion ...

Cell & Microbiology Oct 31, 2016

Biology education in the light of single cell/molecule studies

Stochastic processes are often presented in terms of random, that is unpredictable, events. This framing obscures the reality that stochastic processes, while more or less unpredictable at the level of individual events, ...

Quantum Physics Oct 11, 2016

Physicists observe diffusion of individual atoms in light bath

In a combination of experiments and theory the diffusion of individual atoms in periodic systems was understood for the first time. The interaction of individual atoms with light at ultralow temperatures close to the absolute ...

Nanophysics Sep 6, 2016

Super-resolution microscope builds 3-D images by mapping negative space

Scientists at The University of Texas at Austin have demonstrated a method for making three-dimensional images of structures in biological material under natural conditions at a much higher resolution than other existing ...

Nanomaterials May 20, 2016

Graphene-based nanolubricants could grease automotive industry’s future

Recent research has shown that adding nanoparticles to liquids significantly enhances some of their properties. "Nanofluids" have been synthesised using carbon nanotubes and various metallic, oxide and ceramic nanoparticles. ...

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