New study proposes solution to long-running debate as to how stable the Earth system is
May the force be with us? Precise measurements test quantum electrodynamics, constrain possible fifth fundamental force
(Phys.org) —Quantum electrodynamics (QED) – the relativistic quantum field theory of electrodynamics – describes how light and matter interact – achieves full agreement between quantum mechanics and ...
Jun 04, 2013
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Gold nanocrystal vibration captured on billion-frames-per-second film (w/ video)
A billon-frames-per-second film has captured the vibrations of gold nanocrystals in stunning detail for the first time.
May 23, 2013
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The changing phase of quantum materials: Theoretical model could aid search for ideal material for quantum computers
Matter is categorized as either conductive, semi-conductive or resistive to the flow of electrons based on its bulk properties. However, physicists have now predicted a new state of matter in which the bulk ...
May 10, 2013
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A global murmur, then unusual silence
In the global aftershock zone that followed the major April 2012 Indian Ocean earthquake, seismologists noticed an unusual pattern. The magnitude (M) 8.6 earthquake, a strike-slip event at intraoceanic tectonic plates, caused ...
Apr 19, 2013
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Lightning strokes can probe the ionosphere
(Phys.org) —Thunderstorms, and the resulting partially ionized plasma of the ionosphere, can distort radio signals traveling to satellites important to communications, navigation or national security
Apr 12, 2013
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Researchers pair experiments with computer models to peer into cells
(Phys.org) —BBSRC-funded researchers have developed a new strategy that can give scientists a better insight into how complex molecular machineries function in living cells.
Mar 12, 2013
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Walking in the footsteps of 19th and 20th century naturalists
Are plant-pollinator networks holding together as the insects and plants in the network are jostled by climate change and habitat loss?
Feb 28, 2013
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How fast do chemical trains move in living cells?
The rate of chemical processes in cells is dictated by the speed of movement (diffusion) of molecules needed for a given reaction. Using a versatile method developed at the Institute of Physical Chemistry of the Polish Academy ...
Jan 31, 2013
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From the Amazon rainforest to human body cells: Quantifying stability
The Amazon rainforest, energy grids, and cells in the human body share a troublesome property: They possess multiple stable states. When the world's largest tropical forest suddenly starts retreating in a warming climate, ...
Jan 06, 2013
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Searching for a silver bullet: Measuring biodiversity to inform species conservation
Relearchers apply dynamics system theory to predator-prey interactions
European scientists advanced an important field of mathematics describing the behaviour of numerous physical and biological systems.
Oct 11, 2012
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Optical microscopy enters a new phase: 3D measurement through tomographic bright field imaging
(Phys.org)—A widely-used tool for studying cellular structure – indeed, a technique in use throughout biology – phase contrast microscopy converts optical phase shifts to changes in brightness. At the ...
Sep 10, 2012
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The older we get, the less we know (cosmologically)
(Phys.org) -- The universe is a marvelously complex place, filled with galaxies and larger-scale structures that have evolved over its 13.7-billion-year history. Those began as small perturbations of matter ...
May 22, 2012
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Tracking a Jurassic reversal of the Earth's magnetic field
Roughly 180 million years ago, during the height of the Jurassic period, the Earth's magnetic field flipped, bringing the magnetic north pole once again into the Northern Hemisphere.
May 17, 2012
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