News tagged with thermal fluctuations

Controlling skyrmions for better electronics

Physicists at the University of Hamburg managed for the first time to individually write and delete single skyrmions, a knot-like magnetic entity. Such vortex-shaped magnetic structures exhibit unique properties ...

dateAug 08, 2013 in General Physics
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The secret life of knots

Nanotechnologies require a detailed knowledge of the molecular state. For instance, it is useful to know when and how a generic polymer, a long chain of polymers (chain of beads), knots. The study of molecular ...

dateJun 10, 2013 in Polymers
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Energy-saving chaperon Hsp90

A special group of proteins, the so-called chaperons, helps other proteins to obtain their correct conformation. Until now scientists supposed that hydrolyzing ATP provides the energy for the large conformational ...

dateJan 13, 2012 in Cell & Microbiology
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Tiny generators turn waste heat into power

The second law of thermodynamics is a big hit with the beret-wearing college crowd because of its implicit existential crunch. The tendency of a closed systems to become increasingly disordered if no energy is added or removed ...

dateSep 28, 2010 in Nanophysics
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Greener memory from random motion

Random thermal fluctuations in magnetic memory can be harnessed to reduce the energy required to store information, according to an experiment reported in the current issue of Physical Review Letters. The de ...

dateMar 01, 2010 in General Physics
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