(Phys.org) —In 1921, a Russian entomologist named Boris Uvarov made a curious discovery. He noticed that a single species of grasshopper could transform its appearance and behavior, depending on its population density. ...
Plants & Animals
Jul 12, 2013
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A group of scientists at the University of Oxford and York are taking their inspiration from plants to develop a solar fuel system, or 'artificial photosynthesis' system (APS) that is more efficient than the process that ...
Materials Science
Jul 3, 2013
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You must have heard that spider silk is stronger than steel. We all want to believe that there are wonder materials in nature that are far superior to human-made ones. But the problem with statements that sound too good to ...
Materials Science
Jun 7, 2013
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(Phys.org) —On today's farms, plastic is as ubiquitous as dirt. From plastic film that wraps silage to leftover pesticide containers to the thin trays that hold seedlings, plastic plays an important role. But in the dark ...
Materials Science
May 31, 2013
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Scientists at the Department of Physics of the University of Oulu have teamed up with scientists in France, Russia and Japan to propose a new experimental method for researching positively charged ions. The study, In the ...
Condensed Matter
Mar 25, 2013
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The Wildlife Conservation Society, Zoological Society of London, and Endangered Wildlife Trust have joined representatives from Ethiopia, Kenya, and Uganda at the Convention on International Trade in Endangered Species of ...
Ecology
Mar 8, 2013
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(Phys.org)—The world of rechargeable batteries is full of trade-offs. While lithium-ion (Li-ion) batteries are currently the most commercially successful, their low energy density doesn't allow for a long driving range. ...
(Phys.org)—Measurements obtained with ESA's Venus Express spacecraft have shed new light on the interaction between the solar wind and the second planet from the Sun. During a rare period of very low density solar outflow, ...
Space Exploration
Jan 29, 2013
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(Phys.org)—A field that permeates the universe and gives rise to a new force, or "fifth force," between massive objects may be a candidate for dark energy and an explanation for why the expansion of the universe is accelerating. ...
When lightning strikes from a towering cumulonimbus cloud down to the ground, the electrical discharge can perturb the atmosphere's electric field, potentially triggering a second event-sprite discharge. This more elusive ...
Earth Sciences
Dec 18, 2012
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