Chemical Test Quickly Finds Cognitive Damage in Stroke Patients
Testing for three brain chemicals reveals impairment faster than standard neuropsychological exams
Stories by Charlie Quigg
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Bounce a Battery to Learn If It Is Still Good--Really [Video]
Scientists prove that depleted AA batteries will bounce higher when you drop them, as inner material loses density
Plastics Change Color--and Back--in Less Than 1 Second
Smart windows and biosensors need the speed of these new polymers
