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Search results for Brownian motion

General Âé¶¹ÒùÔºics Dec 10, 2021

Throwing down the scientific gauntlet to assess methods for anomalous diffusion

Almost 80 years after Scottish botanist Robert Brown described the continuous random motion of microscopic particles in a fluid, Albert Einstein provided a theoretical foundation for this observation. Since then, scientists ...

Mathematics Nov 23, 2021

The Riemann conjecture unveiled by physics

A mystery of mathematics that has remained unsolved for more than 150 years can be unraveled thanks to a completely unexpected approach coming from statistical physics. This is the important conclusion of Giuseppe Mussardo, ...

Plants & Animals Nov 11, 2021

Study reveals the complex behaviour of sea urchins regarding the predators' threat

Sea urchins, albeit having a limited and ancestral sensory system, can show a complex behavior when escaping a predator. These marine invertebrates tend to move slowly and with unpredictable movements, but when they smell ...

Nanophysics Nov 11, 2021

New sensor detects ever smaller nanoparticles

Conventional microscopes produce enlarged images of small structures or objects with the help of light. Nanoparticles, however, are so small that they hardly absorb or scatter light and, hence, remain invisible. Optical resonators ...

General Âé¶¹ÒùÔºics Oct 5, 2021

Âé¶¹ÒùÔºics Nobel rewards work on complex systems, like climate

Three scientists won the Nobel Prize in physics Tuesday for work that found order in seeming disorder, helping to explain and predict complex forces of nature, including expanding our understanding of climate change.

Nanomaterials Sep 6, 2021

Fast nanoparticle diffusion in synovial fluid and hyaluronic acid solutions

Nanoparticles have applications as therapeutic agents for joint diseases such as osteoarthritis. But the role of nanoparticle diffusion in synovial fluid or the fluid inside the joint is incompletely understood. In a new ...

General Âé¶¹ÒùÔºics Aug 23, 2021

Mathematicians build an algorithm to 'do the twist'

Mathematicians at the Center for Advanced Mathematics for Energy Research Applications (CAMERA) at Lawrence Berkeley National Laboratory (Berkeley Lab) have developed a mathematical algorithm to decipher the rotational dynamics ...

Nanomaterials Jul 27, 2021

Tracking the movement of a single nanoparticle

Based on the principle of interaction between matter and light, a new method has been developed to track and observe the Brownian motion of fast-moving nanometer-sized molecules, and measure the different fluorescence signals ...

Nanomaterials Jun 29, 2021

Speedy nanorobots could someday clean up soil and water, deliver drugs

University of Colorado Boulder researchers have discovered that minuscule, self-propelled particles called "nanoswimmers" can escape from mazes as much as 20 times faster than other passive particles, paving the way for their ...

General Âé¶¹ÒùÔºics Jun 16, 2021

Particles with 'eyes' allow a closer look at rotational dynamics

Colloids—mixtures of particles made from one substance, dispersed in another substance—crop up in numerous areas of everyday life, including cosmetics, food and dyes, and form important systems within our bodies. Understanding ...

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