Physics
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We summarize the week's scientific breakthroughs every Thursday.
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- Math
Potato chips: A symptom of the U.S. R&D problem
Last year, U.S. consumers spent $7.1 billion on potato chips — $2 billion more than the federal government’s total 2009 investment on research and development. There’s something wrong, here, when Americans are more willing to empty their wallets for the junk food that will swell their waistlines than for investments in the engine driving the creation of jobs, economic growth and national security.
By Janet Raloff - Tech
Everything really is relative
Two tabletop experiments demonstrate the time-warping principle at the human scale.
- Tech
A compass that lights the way
Researchers develop a highly sensitive optical instrument for measuring magnetic fields.
- Physics
String theory entangled
Scientists forge an intriguing mathematical link between black holes and the physics of the very small.
- Tech
Tar sands ‘fingerprint’ seen in rivers and snow
A new study refutes a government claim (one echoed by industry) that the gonzo-scale extraction of tar sands in western Canada — and their processing into crude oil — does not substantially pollute the environment.
By Janet Raloff - Physics
Very tiny, very cool
Physicists outline a scheme to build a ‘refrigerator’ that can cool to near absolute zero and is based on only a few particles.
- Chemistry
Deep-sea plumes: A rush to judgment?
A new report suggests a deep-sea plume of oil in the Gulf of Mexico has been gobbled up by microbes. But the scientist who described the incident doesn't "know" that. He can't — yet.
By Janet Raloff - Chemistry
Deep-sea oil plume goes missing
Controversy arises over whether bacteria have completely gobbled oil up.
By Janet Raloff -
- Chemistry
Superconductors go fractal
Oxygen atoms arrange themselves in a self-similar pattern to help conduct electricity without resistance.
- Physics
Blog: Heisenberg’s uncertainty principle still certain
Despite rumors to the contrary, a mainstay of quantum physics is just as (un)certain as ever.