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Dental delight! Tooth of sea urchin shows formation of biominerals

Dental delight! Tooth of sea urchin shows formation of biominerals

Chemistry / Materials Science

created 7 hours ago | popularity 5 / 5 (2) | comments 0

(PhysOrg.com) -- Some of the most common minerals in biology, including those in bones and shells, have a mysterious structure: Their crystals are positioned in the same orientation, making them behave as ...


Ancient Pacific islanders brought to light

Ancient Pacific islanders brought to light

Other Sciences / Archaeology & Fossils

created 6 hours ago | popularity 4 / 5 (2) | comments 0

(PhysOrg.com) -- A find of 60 headless skeletons summer 2009 may reveal the identity of the people who first inhabited the Pacific Ocean archipelago Vanuatu 3000 years ago.


Caltech scientists film photons with electrons

Caltech scientists film photons with electrons

Physics / General Physics

created Dec 16, 2009 | popularity 4.9 / 5 (21) | comments 0

(PhysOrg.com) -- Techniques recently invented by researchers at the California Institute of Technology -- which allow the real-time, real-space visualization of fleeting changes in the structure of nanoscale ...


Close-up photos of dying star show our sun's fate

Close-up photos of dying star show our sun's fate (w/ Video)

Space & Earth / Astronomy

created Dec 15, 2009 | popularity 5 / 5 (21) | comments 5

(PhysOrg.com) -- About 550 light-years from Earth, a star like our Sun is writhing in its death throes. Chi Cygni has swollen in size to become a red giant star so large that it would swallow every planet ...


Watching Proteins Direct Crystal Growth One Step at a Time (w/ Video)

Watching Proteins Direct Crystal Growth One Step at a Time (w/ Video)

Nanotechnology / Nanophysics

created Dec 16, 2009 | popularity 5 / 5 (3) | comments 0

(PhysOrg.com) -- Scientists at Berkeley Lab's Molecular Foundry imaged the growth of protein-studded mineral surfaces with unprecedented resolution and provided a glimpse into how living systems engineer key ...


The high speed train named Sapsan moves along the tracks at a station in Saint-Petersburg

Russian railways enter modern age with new express

Technology / Engineering

created Dec 20, 2009 | popularity 4 / 5 (5) | comments 0

Famed for the legendary trains that clank across seven time zones on its Trans-Siberian railroad, Russia this week entered the modern railway age with its first high-tech express train.


Nexus One

Google tests new phone to profit from mobile Web

Electronics / Consumer & Gadgets

created Dec 14, 2009 | popularity 1 / 5 (1) | comments 2

(AP) -- Google Inc. is determined to gain more influence over how the Web is used on mobile phones, even if the next step in the quest tramples some of the relationships forged during its two-year expansion ...


Study on Great Lakes erosion dredges up controversy

Space & Earth / Environment

created Dec 17, 2009 | popularity 5 / 5 (1) | comments 0

The Great Lakes aren't as great as they once were. A U.S.-Canadian study released Tuesday reveals that unexpected erosion in the St. Clair River following a 1962 dredging project has permanently lowered Lakes Michigan and ...


Cloning plants from seeds

Biology / Biotechnology

created Dec 15, 2009 | popularity not rated yet | comments 0

(PhysOrg.com) -- Wageningen geneticists (The Netherlands) are developing a method to replicate the parents of a chosen plant. Known as 'reverse breeding', this will have a big impact for the breeding industry.


The world's highest efficiency energy conversion photovoltanic (solar panel) cell

Hi-tech, eco-friendly dream home takes shape in Japan

Technology / Energy

created Dec 14, 2009 | popularity 4.7 / 5 (3) | comments 0

On Tokyo Bay, at the edge of the largest urban sprawl on Earth, sits what may be an environmentalist's dream home.


Global warming could significantly impact US wine and corn production, scientists say

Space & Earth / Environment

created Dec 14, 2009 | popularity 3.4 / 5 (8) | comments 11

When it comes to nature, timing is everything. Spring flowers depend on birds and insects for pollination. But if spring-like weather arrives earlier than usual, and flowers bloom and wither before the pollinators appear, ...


The koala faces starvation as the nutritional quality of eucalyptus leaves declines, the report says

Koalas, penguins at risk of extinction: study

Biology / Ecology

created Dec 14, 2009 | popularity 3.3 / 5 (3) | comments 0

Climate change threatens the survival of dozens of animal species from the emperor penguin to Australian koalas, according to a report released Monday at the UN climate summit.


Smoking continues gradual decline among U.S. teens, smokeless tobacco threatens a comeback

Medicine & Health / Health

created Dec 14, 2009 | popularity not rated yet | comments 0

(PhysOrg.com) -- Teen smoking reached its recent peak levels around 1996 and 1997, followed by a sharp decline for about six years and a continued more gradual decline ever since, according to the latest Monitoring the Future ...


Researchers discover novel method for detecting MIRCERA

Chemistry / Analytical Chemistry

created Dec 16, 2009 | popularity not rated yet | comments 0

Austrian researchers have successfully developed a new electrophoretic method for detecting MIRCERAŽ and other erythropoietins (EPO) in the blood. The technique, using SARCOSYL-PAGE, has specifically enhanced sensitivity ...


US-China showdown still looms over climate talks (AP)

US-China showdown still looms over climate talks

Space & Earth / Environment

created Dec 15, 2009 | popularity 5 / 5 (1) | comments 0

(AP) -- In a showdown between the world's two largest polluters, China accused the United States and other rich nations Tuesday of backsliding on fighting global warming and the top U.S. envoy said Chinese ...