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Earth

Earth's Orbit Reshapes Sea Floor 55

Posted by samzenpus
from the shape-of-things dept.
sciencehabit writes "Earth's orbital variations—the wobbling and nodding of the planet on its rotational axis and the rhythmic elongation of the shape of its orbit—can affect the shape of the sea floor, according to new research. Scientists already knew that orbital variations, which are driven by gravitational interactions among solar system bodies, pace the comings and goings of the ice ages by shifting where sunlight falls on Earth. Now, researchers have shown in a computer model that those pressure variations should vary the amount of mantle rock that melts kilometers beneath midocean ridges. That, in turn, would vary the amount of ocean crust that solidifies from the melted rock, changing the thickness of new crust by as much as a kilometer as it slides down either side of a midocean ridge. And the group found that indeed, on the Juan de Fuca Ridge offshore of the Pacific Northwest, the ocean floor is grooved like a vinyl LP record in time with Earth's orbital variations of the past million years."

Comment: Re:LOL, you people are funny (Score 1) 478

by etcpasswd (#35096996) Attached to: Bombay High Court Rules Astrology To Be a Science
If it "works" for you, it does not mean Astrology is Science - it is Art, at best: The results are open for interpretation. The second point is that if you truly believe in the "Science" of Astrology, there should be no way to improve life, as your fate is set in stone at the time of birth. As far as I know, the remedies are not part of pure astrology, but that's the only way the pundits make money.
Earth

Researchers Pooh-Pooh Algae-Based Biofuel 238

Posted by timothy
from the feed-it-pooh-pooh-undies dept.
Julie188 writes "Researchers from the University of Virginia have found that current algae biofuel production methods consume more energy, have higher greenhouse gas emissions and use more water than other biofuel sources, such as switchgrass, canola and corn. The researchers suggest these problems can be overcome by situating algae production ponds behind wastewater treatment facilities to capture phosphorous and nitrogen — essential algae nutrients that otherwise need to come from petroleum."
Image

Scientists Say a Dirty Child Is a Healthy Child 331

Posted by samzenpus
from the snack-is-going-to-be-on-the-floor-today dept.
Researchers from the School of Medicine at the University of California have shown that the more germs a child is exposed to, the better their immune system in later life. Their study found that keeping a child's skin too clean impaired the skin's ability to heal itself. From the article: "'These germs are actually good for us,' said Professor Richard Gallo, who led the research. Common bacterial species, known as staphylococci, which can cause inflammation when under the skin, are 'good bacteria' when on the surface, where they can reduce inflammation."

"I'm not a god, I was misquoted." -- Lister, Red Dwarf

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