News tagged with sun compass


monarch butterfly

Migrating monarch butterflies 'nose' their way to Mexico

Biology / Plants & Animals

created Sep 24, 2009 | popularity 3.8 / 5 (4) | comments 0

The annual migration of monarch butterflies from across eastern North America to a specific grove of fir trees in Mexico has long fascinated scientists who have sought to understand just how these delicate ...


Genetic basis for migration

Biology / Evolution

created Mar 31, 2009 | popularity 4 / 5 (1) | comments 0

Scientists studying Eastern North American monarch butterflies (Danaus plexippus) have uncovered a suite of genes that may be involved in driving the butterflies to migrate towards Mexico for the winter. Their research, publis ...





Search results for sun compass


30-year puzzle solved: Light guides flight of migratory birds

Biology /

created Aug 10, 2006 | popularity 4.5 / 5 (34) | comments 0

Songbirds use multiple sources of directional cues to guide their seasonal migrations, including the Sun, star patterns, the earth's magnetic field, and sky polarized light patterns. To avoid navigational errors as cue availability ...


For migrating sparrows, kids have a compass, but adults have the map

Biology /

created Nov 05, 2007 | popularity 4.4 / 5 (9) | comments 1

Even bird brains can get to know an entire continent -- but it takes them a year of migration to do so, suggests a Princeton research team.


Scientists discover molecular basis of monarch butterfly migration

Biology /

created Jan 08, 2008 | popularity 4.7 / 5 (27) | comments 1

Since its discovery, the annual migration of eastern North American monarch butterflies has captivated the human imagination and spirit. That millions of butterflies annually fly a few thousand miles to reach a cluster of ...


Sun Microsystems logo

Sun cutting up to 3,000 jobs as awaits Oracle deal

Technology / Business

created Oct 20, 2009 | popularity not rated yet | comments 0

(AP) -- Sun Microsystems Inc. plans to eliminate up to 3,000 jobs, or 10 percent of its worldwide work force, as it awaits a takeover by Oracle Corp., a deal being held up by antitrust regulators in Europe.


Seeing stars, Proba-2 platform passes its first health check

Seeing stars, Proba-2 platform passes its first health check

Space & Earth / Space Exploration

created Nov 11, 2009 | popularity 4.5 / 5 (4) | comments 0

(PhysOrg.com) -- Into its second week in orbit, Proba-2's spacecraft platform has proven to be in excellent health. This leaves the way clear for commissioning the many new technology payloads aboard the mini-satellite, ...


Passage Grave 'Nordenhoj'

Passage graves from an astronomical perspective

Other Sciences / Archaeology & Fossils

created Dec 18, 2008 | popularity 4.3 / 5 (4) | comments 1

Passage graves are mysterious barrows from the Stone Age. New research from the Niels Bohr Institute at the University of Copenhagen indicates that the Stone Age graves' orientation in the landscape could ...


With stimulus aid, scientists hope to mimic nature's dynamos

Space & Earth / Earth Sciences

created Oct 09, 2009 | popularity 4.5 / 5 (4) | comments 0

(PhysOrg.com) -- In the cosmos, all celestial objects - planets, stars, galaxies and clusters of galaxies - have magnetic fields. On Earth, the magnetic field of our home planet is most easily observed in a compass where ...


Senators press EU to speed its Oracle-Sun probe

Technology / Business

created Nov 24, 2009 | popularity not rated yet | comments 0

(AP) -- U.S. senators are pressuring European antitrust regulators to hurry their investigation of Oracle Corp.'s proposed acquisition of Sun Microsystems Inc., citing Sun's "precarious" financial condition and fears about ...


How monarch butterflies are wired for navigation

Other Sciences /

created May 04, 2005 | popularity 5 / 5 (1) | comments 0

In their extraordinary annual migration from North America to Mexico, monarch butterflies are known to use the angle of polarized sunlight as a celestial guide to help them keep to a straight and true path southward. But ...


Study: Believers' inferences about God's beliefs are uniquely egocentric

Study: Believers' inferences about God's beliefs are uniquely egocentric

Medicine & Health / Psychology & Psychiatry

created Nov 30, 2009 | popularity 4.2 / 5 (37) | comments 85

Religious people tend to use their own beliefs as a guide in thinking about what God believes, but are less constrained when reasoning about other people's beliefs, according to new study published in the ...



List of search results for sun compass