Search results for dusk:
Jamaican lizards' shows of strength mark territory at dawn, dusk
Biology /
Aug 27, 2008 |
4.3 / 5 (3) |
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What does Jack LaLanne have in common with a Jamaican lizard? Like the ageless fitness guru, the lizards greet each new day with vigorous push-ups. That's according to a new study showing that male Anolis ...
Owls' dawn and dusk concerts promote visual communication
Apr 08, 2009 |
not rated yet |
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Reporting in the online, open-access journal PLoS ONE April 8, Vincenzo Penteriani and Maria Delgado of the Estacion Biologica de Doņana, Spain, describe the evolution of white throat badges in association with d ...
Scientists explain why birds get sex on the brain in the Spring
Aug 07, 2009 |
5 / 5 (1) |
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(PhysOrg.com) -- Oxford University researchers have discovered how birds sense the lengthening days of early Spring and time when they breed, solving a 70-year mystery.
Stealth camouflage at night
Biology /
Mar 09, 2007 |
4.8 / 5 (5) |
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Cuttlefish are well-known masters of disguise who use highly developed camouflage tactics to blend in almost instantaneously with their surroundings. These relatives of octopuses and squid are part of a class of animals called ...
New system estimates geographic location of photos
Technology / Computer Sciences
Jun 18, 2008 |
3.9 / 5 (10) |
2
Researchers at Carnegie Mellon University have devised the first computerized method that can analyze a single photograph and determine where in the world the image likely was taken. It's a feat made possible ...
A Biological Basis for the 8-Hour Workday? Researchers uncover 8- and 12-hour Cycles of Gene Activity
Apr 22, 2009 |
4.8 / 5 (12) |
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(PhysOrg.com) -- The circadian clock coordinates physiological and behavioral processes on a 24-hour rhythm, allowing animals to anticipate changes in their environment and prepare accordingly. Scientists ...
Scientists eye glowing volcano crater in Hawaii
Space & Earth / Earth Sciences
Jun 07, 2009 |
4.2 / 5 (11) |
2
(AP) -- The summit of Hawaii's Kilauea volcano is glowing brightly as molten lava swirls 300 feet below its crater's floor, bubbling near the surface after years of spewing from the volcano's side.
Migrating birds chill to fatten up
Sep 11, 2009 |
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0
Marathon runners are famed for pasta packing in the days before a big run but when tiny passerine birds set out on their epic migrations, the distances are too great to cover on the energy reserves with which they embark. ...
Rocky Finding -- Evidence of Extrasolar Asteroid Belt
Jan 06, 2007 |
3.8 / 5 (5) |
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Providing the best evidence yet for an asteroid belt beyond the solar system, new measurements pinpoint the location of such a disk of warm dust surrounding the star Zeta Leporis. As the January 6, 2007 issue of Science Ne ...
Review: A riff on robotics with self-tuning guitar
Electronics / Consumer & Gadgets
Nov 25, 2009 |
3.8 / 5 (10) |
5
(AP) -- New cars have been tuning themselves for the better part of two decades now, so it should feel less impressive that Gibson has built a guitar that can smoothly do the same.
STAR TRAK for November
Space & Earth / Space Exploration
Nov 03, 2008 |
4 / 5 (10) |
3
(PhysOrg.com) -- Venus and Jupiter, the brightest planets in the sky, will steadily approach each other during November as if drawn by their mutual brillliance. Finally they will have a spectacular encounter ...
Students, engineers set record fuel-cell-powered, radio-controlled airplane flight
Nov 13, 2008 |
3.3 / 5 (6) |
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The longest fuel-cell-powered flight of a radio-controlled aerial vehicle has been achieved by students at the University of Michigan and engineers at Ann Arbor-based fuel-cell manufacturer Adaptive Materials ...
Fruit fly sperm makes females do housework after sex
Sep 30, 2009 |
5 / 5 (1) |
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The sperm of male fruit flies are coated with a chemical 'sex peptide' which inhibits the female's usual afternoon siesta and compels her into an intense period of foraging activity.
OLED Tunes its Colors for Sunlight-Style Illumination
Jul 16, 2009 |
5 / 5 (39) |
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(PhysOrg.com) -- Scientists have developed a lighting device that can change its color temperature throughout the day, matching the natural daylight chromaticities produced by the sun. Currently, no other ...
Polarized light guides cholera-carrying midges that contaminate water supplies
Biology /
Oct 31, 2008 |
5 / 5 (2) |
0
Cholera is a major killer and since the first pandemic in the early 19th century it has claimed millions of lives. According to Amit Lerner from The Hebrew University of Jerusalem, Israel, the lethal infection is harboured ...
