Waves and Their Applications in Technologies for Information Transfer
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PhysicsExplainer: How a synchrotron works
Giant magnets direct superfast light into beams up to 30 million times as bright as those produced by a laser pointer.
By Emily Sohn -
AnimalsA Sense of Danger
Can animals warn us if an earthquake or some other natural disaster is about to strike?
By Emily Sohn -
TechElectronic paper turns a page
Changeable ink and battery-powered paper may make textbooks lighter and bring video newspapers into daily use.
By Emily Sohn -
TechCell phones and possible health hazards
Radiation from some cell phones appears to kill brain cells in rats.
By Emily Sohn