News tagged with narrow range
Ecologists Say Metabolism Accounts for Why Natural Selection Favors Only Some Species
Biology /
Nov 03, 2008 |
3.5 / 5 (11) |
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(PhysOrg.com) -- Why are some species of plants and animals favored by natural selection? And why does natural selection not favor other species similarly?
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Broadband invisibility in the microwave range
Sep 11, 2009 |
3.9 / 5 (10) |
1
(PhysOrg.com) -- In the series Star Trek, Klingons and Romulans have spaceships outfitted with cloaking devices that hide their presence from sight, as well as from the sensors of their rivals' spaceships. Unlike current invisi ...
Harvesting Energy from Natural Motion: Magnets, Cantilever Capture Wide Range of Frequencies
Oct 28, 2009 |
4.1 / 5 (11) |
4
(PhysOrg.com) -- By taking advantage of the vagaries of the natural world, Duke University engineers have developed a novel approach that they believe can more efficiently harvest electricity from the motions ...
Franklin's bumble bee may be extinct
May 26, 2009 |
4.8 / 5 (6) |
5
(PhysOrg.com) -- Native pollinator specialist Robbin Thorp, emeritus professor of entomology at the University of California, Davis, just returned from a scientific trip to southern Oregon and Northern California ...
Threatened birds may be rarer than geographic range maps suggest
Biology /
Dec 10, 2007 |
3.7 / 5 (3) |
1
Geographic range maps that allow conservationists to estimate the distribution of birds may vastly underestimate the actual population size of threatened species and those with specific habitats, according to a study published ...
First broad spectrum anti-microbial paint to kill 'superbugs'
Apr 20, 2009 |
3.5 / 5 (2) |
0
Scientists in South Dakota are reporting development of the first broad-spectrum antimicrobial paint, a material that can simultaneously kill not just disease-causing bacteria but mold, fungi, and viruses. ...
Photonics: Pump up the bandwidth
Jun 21, 2006 |
3.7 / 5 (11) |
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U.S. scientists say they've developed an optical amplifier based on silicon that works across a wide range of frequencies.
Butterfly wings may help scientists better understand photonic crystals
Sep 04, 2008 |
4.4 / 5 (17) |
0
As technology moves forward, many scientists are looking to nature to find inspiration for the development of advanced materials that can have a variety of practical applications.
Innovative Composite Opens Terahertz Frequencies to Many Applications
Apr 17, 2008 |
4.6 / 5 (20) |
0
A frequency-agile metamaterial that for the first time can be tuned over a range of frequencies in the so-called “terahertz gap” has been engineered by a team of researchers from Boston College, Los Alamos National Laboratory ...
MESSENGER Reveals Mercury in New Detail
Space & Earth / Space Exploration
Jan 16, 2008 |
4.5 / 5 (37) |
0
As MESSENGER approached Mercury on January 14, 2008, the spacecraft’s Narrow-Angle Camera on the Mercury Dual Imaging System (MDIS) instrument captured this view of the planet’s rugged, cratered landscape ...
'Great speciators' explained: It's intrinsic
Biology /
Jan 26, 2009 |
4.3 / 5 (3) |
0
New molecular research shows that birds within the family Zosteropidae—named white eyes for the feathers that frame their eyes—form new species at a faster rate than any other known bird. Remarkably, unlike ...
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