Contact electrification depends on materials' contact history, physicists show
From a tiny electric jolt when touching a doorknob to styrofoam peanuts that cling to a mischievous cat's fur -- the well-known and seemingly simple phenomenon of static electricity has puzzled people since antiquity. How could this ubiquitous effect, frequently demonstrated to bedazzled children by rubbing a balloon on their hair, still not be completely understood by scientists? For centuries, static electricity has been the subject of intrigue and scientific investigation. Now, researchers have uncovered a vital clue to this enduring mystery: the contact history of materials controls how they exchange charge. The groundbreaking findings explain the prevailing unpredictability of contact electrification, unveiling order from what has long been considered chaos.
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From a tiny electric jolt when touching a doorknob to styrofoam peanuts that cling to a mischievous cat's fur -- the well-known and seemingly simple phenomenon of static electricity has puzzled people since antiquity. How could this ubiquitous effect, frequently demonstrated to bedazzled children by rubbing a balloon on their hair, still not be completely understood by scientists? For centuries, static electricity has been the subject of intrigue and scientific investigation. Now, researchers have uncovered a vital clue to this enduring mystery: the contact history of materials controls how they exchange charge. The groundbreaking findings explain the prevailing unpredictability of contact electrification, unveiling order from what has long been considered chaos.
