Uncategorized
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18894
Apparently your left column has no idea what your right column is doing. At the top left of page 15 in the Jan. 6 issue (“Y2K: One of the hottest, wettest yet”) you say Y2K is one of the hottest and wettest years yet. The first article starting on the right (“Sediments show bipolar melting […]
- Earth
Snowpack chemistry can deplete ozone
Pollutants trapped in Arctic snow can be reactivated by sunlight when the sun returns to high latitudes in the spring, leading to ozone depletion in the snowpack and at low altitudes.
- Earth
Pollution in India may affect climate
Computer models show that air pollution over India could be preventing up to 15 percent of the sunlight from reaching the ground in the springtime, possibly causing temperature drops of up to 2 degrees Celsius.
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18915
Apparently your left column has no idea what your right column is doing. At the top left of page 15 in the Jan. 6 issue (“Y2K: One of the hottest, wettest yet”) you say Y2K is one of the hottest and wettest years yet. The first article starting on the right (“Sediments show bipolar melting […]
- Earth
Y2K: One of the hottest, wettest yet
Preliminary data from the National Climatic Data Center indicate the year 2000 will be one of the six hottest and one of the ten wettest years on record.
- Tech
Current may flow free and cheap
Wires that carry electricity without resistance at relatively high temperatures--and are inexpensive--moved a large step closer to reality as a 100-fold speed-up in depositing a key material wiped out a major obstacle to making those wires.
- Tech
From silicon seeds, laser might sprout
The achievement of light amplification in a layer of tiny nuggets of silicon called quantum dots raises the possibility that long-desired silicon lasers are on the way.
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Brain keeps eye on performance
A brain area that controls eye movements may also participate in a broader neural system of self-regulation.
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Suicide rates revised for depression
A research review concludes that the suicide rate among people diagnosed with depression has been overstated.
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- Physics
Heating, simulations get the drop on drips
Air can buoy a layer of oil and, perhaps, even water leaking through a ceiling, if the air is relatively warm compared with the liquid.
