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Tech
Current may flow free and cheap
Wires that carry electricity without resistance at relatively high temperatures--and are inexpensive--moved a large step closer to reality as a 100-fold speed-up in depositing a key material wiped out a major obstacle to making those wires.
By Peter Weiss -
Tech
From silicon seeds, laser might sprout
The achievement of light amplification in a layer of tiny nuggets of silicon called quantum dots raises the possibility that long-desired silicon lasers are on the way.
By Peter Weiss -
Brain keeps eye on performance
A brain area that controls eye movements may also participate in a broader neural system of self-regulation.
By Bruce Bower -
Suicide rates revised for depression
A research review concludes that the suicide rate among people diagnosed with depression has been overstated.
By Bruce Bower -
Physics
Heating, simulations get the drop on drips
Air can buoy a layer of oil and, perhaps, even water leaking through a ceiling, if the air is relatively warm compared with the liquid.
By Peter Weiss -
Astronomy
X rays unveil secret lives of black holes
New studies challenge the notion that supermassive black holes finished growing soon after their host galaxies formed and suggest new ways to find these black holes and measure their mass.
By Ron Cowen -
Agriculture
Tasteful new wrapping can protect produce
New, fruit- and vegetable-based edible packaging could reduce the amount of synthetic wrapping needed to protect food.
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New ant species plunders other ants’ farms
A newly discovered Megalomyrmex ant specializes in raiding the nest gardens of fungus-cultivating ant species.
By Susan Milius -
Health & Medicine
Vision: The risks of being too fat or too tall
Excess weight or height can have a blinding impact, fostering the development of cataracts.
By Janet Raloff -
18914
So some neo-Darwinist DNA researchers found that a few genes link a shrew and an elephant (“Genes seem to link unlikely relatives,” SN: 1/6/01, p. 4). Indeed, they are certain that all our other senses (like perceived morphology and such) should be overruled and their new evolutionary story accepted over all other stories. Russell Husted […]
By Science News