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http://www.sciencenews.org/view/authored/id/25
Searching Authored by Davide Castelvecchi 
50 matches found
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It’s nuclear physics 101: Radioactivity proceeds at its own pace. Each type of radioactive isotope, be it plutonium-238 or carbon-14, changes into another isotope or element at a specific, universal, immutable rate. This much has been known for more than a century, since Ernest Rutherford defined the notion of half-life—the time it takes for half of the atoms in a radioactive sample to transmute into something else. So when researchers suggested in August that the sun causes variations in the decay rates of isotopes of silicon, chlorine, radium and manganese, the physics community reacted ... (p. 20)Published: November 22nd, 2008; Vol.174 #11Found in: Atom & Cosmos, Chemistry, Matter & Energy, Molecules and Physics -
Physicists discover an unexpected source of X-rays.Published: 2008-10-22 14:35:57Found in: Matter & Energy
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Getting liquid fuels from coal would likely increase carbon emissions, and certainly not reduce them.Published: 2008-10-20 18:06:40Found in: Matter & Energy
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Culture may turn potentially high achievers away from math, new study suggests. (p. 10)Published: November 8th, 2008; Vol.174 #10Found in: Numbers and Science & Society
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Discovery may lead to battery that generates magnetic currentsPublished: 2008-10-08 15:40:00Found in: Matter & Energy
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In a simulated merger, astrophysicists tried to push the boundaries of two black holes into shedding their event horizons. But the resulting black hole was still shrouded by its event horizon, through which even light can’t escape.Published: 2008-10-03 14:23:25Found in: Atom & Cosmos -
Manipulating the quantum properties of diamond impurities makes diamond into a kind of microscope that could, for example, reveal the inner working of cells. (p. 9)Published: October 25th, 2008; Vol.174 #9Found in: Atom & Cosmos and Matter & Energy
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Scientists discover "dark flow" -- the unexplained streaming of galactic clusters across the universe. (p. 12)Published: October 25th, 2008; Vol.174 #9Found in: Atom & Cosmos
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Physicists manipulated a microwave pulse and could essentially watch it transition from a quantum state into the realm of classical physics.Published: 2008-09-24 15:31:15Found in: Atom & Cosmos and Matter & Energy -
Using microbes to convert PET into a high-value plastic could encourage more recycling.Published: 2008-09-19 16:16:26Found in: Chemistry and Science & Society
