News tagged with uv light


Chocolate

Chocolate rich in flavanols may protect the skin from UV

Medicine & Health / Health

created Nov 06, 2009 | popularity 5 / 5 (9) | comments 3

(PhysOrg.com) -- A new study has discovered for the first time that dark chocolate rich in flavanols may provide significant protection from the harmful effects of ultraviolet light.





Search results for uv light


Rich Ore Deposits Linked to Ancient Atmosphere

Space & Earth / Earth Sciences

created Nov 19, 2009 | popularity 4.3 / 5 (3) | comments 0

(PhysOrg.com) -- Much of our planet's mineral wealth was deposited billions of years ago when Earth's chemical cycles were different from today's. Using geochemical clues from rocks nearly 3 billion years old, a group of ...


Optical properties of the Antarctic system and new radiation information

Space & Earth / Earth Sciences

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

The Antarctic system comprises of the continent itself, Antarctica, and the ocean surrounding it, the Southern Ocean. In a study for a doctoral degree by geophysicist Kai Rasmus, University of Helsinki, Finland, measurements ...


A biology whodunnit: are rodents helping protect trees from fire?

A biology whodunnit: are rodents helping protect trees from fire?

Biology / Ecology

created Nov 12, 2009 | popularity 5 / 5 (1) | comments 0

Tom Parker has made an unusual find. In California forests and shrubland that burned in 2008, he has spotted Manzanita seedlings sprouting in tight clusters, suggesting that the young shrubs emerged from underground ...


Argonne 'homegrown' hybrid solar cell aims for low-cost power

Argonne 'homegrown' hybrid solar cell aims for low-cost power

Nanotechnology / Nanomaterials

created Nov 10, 2009 | popularity 4.3 / 5 (12) | comments 3

(PhysOrg.com) -- Scientists at the U.S. Department of Energy’s (DOE) Argonne National Laboratory have refined a technique to manufacture solar cells by creating tubes of semiconducting material and then "growing" ...


Imaging a catalyst one atom at a time

Imaging a catalyst one atom at a time

Nanotechnology / Nanomaterials

created Nov 09, 2009 | popularity 5 / 5 (3) | comments 2

(PhysOrg.com) -- The catalytic processes that facilitate the production of many chemicals and fuels could become much more environmentally friendly thanks to a breakthrough achieved by researchers from Lehigh ...


The Sun's Sneaky Variability

The Sun's Sneaky Variability

Space & Earth / Space Exploration

created Oct 28, 2009 | popularity 4.8 / 5 (11) | comments 5

Every 11 years, the sun undergoes a furious upheaval. Dark sunspots burst forth from beneath the sun's surface. Explosions as powerful as a billion atomic bombs spark intense flares of high-energy radiation. ...



List of search results for uv light