In the News
Novel Treasure Hunt Explores Earth And Mineral Sciences Library
Today's libraries are not just for books, computers and magazines -- one university library now has its own geocache thanks to a Penn State librarian. Researcher Placing Eye Implants In Cats To Help Humans See
In "Star Trek: The Next Generation,"Geordi La Forge is a blind character who can see through the assistance of special implants in his eyes. While the Star Trek character "lives"in the 24th century, people living in the 21st century may not have to wait that long for the illuminating technology. UBC Researchers Explain Why Females Are Better Off Choosing Unattracti
In a research paper published in the journal Science, UBC zoology professor Sarah Otto and graduate student Arianne Albert propose a model that explains why males in some species have extravagant displays for attracting females, while males in other species look just like females.
Physicists Demonstrate Quantum Mechanical Nature Of Heat Flow
A hallmark of quantum mechanics is the wave nature exhibited by particles. A classic demonstration of this is the Aharonov-Bohm effect where electrons are sent along two paths that may be altered by application of an external magnetic field. By tuning the field, the constructive or destructive interference of the electrons is manifested as an increase or decrease in charge flow. Now Northwestern University physicists show that the conduction of heat may be similarly tuned. New Model Of Competitive Speciation Unifies Insights From Earlier Work
Under which circumstances is sympatric speciation possible? An answer to this long-standing question of evolutionary biology has turned out to be challenging. In particular, models for the evolution of assortative mating under frequency-dependent disruptive selection necessarily depend on a large number of ecological and genetic factors. For this reason, most previous approaches to this issue depend on individual-based simulations. However, simulation studies with only slightly different assumptions have come to wildly different conclusions, making it hard to generalize results and leading to fierce debate. Deep Impact Kicks Off Fourth Of July With Deep Space Fireworks
After 172 days and 431 million kilometers (268 million miles) of deep space stalking, Deep Impact successfully reached out and touched comet Tempel 1. The collision between the coffee table-sized impactor and city-sized comet occurred at 1:52 a.m. EDT. Mission scientists expect the project will answer basic questions about the formation of the solar system, by offering a better look at the nature and composition of the frozen celestial travelers known as comets. Lakota Winter Counts
"The Lakota marked the passage of time by drawing pictures of memorable events on calendars known as winter counts. This online exhibit features a searchable database of Smithsonian winter count images, a documentary about Lakota history and culture, video interviews with Lakota people ... and a teacher's guide."Also includes maps, a glossary, and a bibliography. From the Smithsonian National Museum of Natural History. [Odd] A Romanian couple has named their son Yahoo as a sign of gratitu
Daily Libertatea said on Thursday Cornelia and Nonu Dragoman, both from Transylvania, met and decided they were meant for each other following a three-month relationship over the net.They married and had a baby this Christmas, whom they decided to name after one of the worldwide web's most popular portals."We named him Lucian Yahoo after my father and the net, the main beacon of my life,"Cornelia Dragoman was quoted as saying. 'Missing' Dark Matter Is Really There, Says Hebrew University Cosmolog
A new analysis that refutes challenges to the existence of dark matter in certain galaxies appears in an article published this week in the journal Nature. Leading author of the article is Avishai Dekel, professor of physics at the Hebrew University of Jerusalem. Ghost Protein Leaves Fresh Tracks In The Cell
Spectrin and ankyrin, two essential proteins, shape and fortify cell membranes. New findings on variations in spectrin's ability to bind to membranes have implications for new biomedical molecular targets to treat certain diseases.
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