Physics
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Physics
Ghostly Electrons: Particles flit through atom-thin islands
Electrical measurements of one-atom-thick slices of carbon reveal extraordinary electronic properties, including electrons that seem massless and move at blazing speeds.
By Peter Weiss -
Physics
Revisiting Einstein’s incomplete theory
New, ultraprecise measurements of single-particle trajectories confirm that there's something missing from Einstein's mathematical model for Brownian motion.
By Peter Weiss -
Physics
That’s the Way the Spaghetti Crumbles
Investigating how uncooked spaghetti breaks has uncovered new mechanisms behind shattering and energy concentration, with possible implications for how structures fail.
By Peter Weiss -
Materials Science
Up to Snuff: Nanotube network fights flames
Researchers have found that infusing plastics with a network of carbon nanotubes reduces their flammability.
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Physics
Light Pedaling: Photonic brakes are vital for circuits
A novel silicon microchip device slows and varies light-pulse speeds—a function considered critical for the development of photonic circuits based on light instead of electrons.
By Peter Weiss -
Physics
A matter of gravity
Gravity Probe B has finished its test of general relativity but results of the study won't be known for another year.
By Ron Cowen -
Physics
Nanobots walk ‘n’ roll
A molecule that waddles on stubby feet and another that drives on ball-like wheels demonstrate scientists' increasing control over the usually haphazard motion of molecules on surfaces.
By Peter Weiss -
Materials Science
Brainy bandages
Researchers have taken a step toward smart bandages that would indicate the presence of an infection in a wound.
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Materials Science
Slim and Sturdy Solar Cells: Nanocrystals offer path to electricity
Researchers have crafted an ultrathin solar cell out of inorganic nanocrystals that have several of the advantages of plastic but avoid some of its shortcomings.
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Materials Science
Explosive tempers
Researchers have demonstrated that carbon nanotubes, once ignited, can detonate explosives.
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Materials Science
Filling in the blanks
Scientists have added precision to a patterning technique called microcontact printing.
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Materials Science
Heart of the Matter: Scanning scope digs deeper into microchips
Researchers have developed a noninvasive imaging technique that lets them see deep inside a microchip.