News
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Materials ScienceMiniature Motor: Nanotubes central to new rotating device
Researchers have used miniature, nested cylinders, called multiwalled carbon nanotubes, to make a motor only 300 nanometers long.
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Beyond Clots: Platelets in blood may guide immune response
Platelets, best known for their ability to create blood clots in wounds, may also have a role in the immune system.
By John Travis -
AstronomyTaking the Crab’s pulse
Simultaneous recordings of a pulsar's radio emissions and its visible beam shed new light on the seemingly chaotic variations in the intensities of those emissions.
By Ben Harder -
TechPress ‘n’ Peel Lasers: Coaxing light beams out of cheap plastic
Researchers have devised a way to imprint lasers in plastic—an achievement that may one day lead to ultracheap lasers mass-produced like poker chips.