March 29, 2026

8 min read

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The surprisingly baffling science of static electricity

This familiar phenomenon has puzzled researchers for centuries, but experiments are finally making sense of its unruly behaviors

By Jenna Ahart & Nature magazine

When hair picks up an electrostatic charge, the strands repel each other and stand on end.

Whitney Hayward/Portland Press Herald/Getty Images

Static electricity is so commonplace that it can come across as simple. Rub a balloon against your head, and the transfer of charges will make your hair stand on end. Shuffle your feet on a carpet, and the charge imbalance you produce can shock an innocent passer-by.

So it might come as a surprise that static electricity — which arises from what researchers in the field call the triboelectric effect — has left scientists racking their brains for centuries. Some of the basics are clear. Materials transfer charges when they’re rubbed or otherwise come into contact with each other: one becomes more positively charged and the other more negatively charged. Opposite charges attract whereas identical charges repel, and ta-da, you have a primary-school science experiment.

But most everything else in this field remains baffling. Is it the electrons, ions or bits of material that transfer the charge? Why do some materials charge positively and others negatively? What happens when two samples of the same material come into contact? For instance, when “rubbing a balloon on a balloon”, says experimental physicist Scott Waitukaitis at the Institute of Science and Technology Austria in Klosterneuburg. A big part of the problem is that experiments tend to misbehave, with the same procedures producing different results.

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Now, researchers are picking apart some of the puzzles that have long plagued the field. With sophisticated laboratory set-ups that carefully control for compounding factors, Waitukaitis and his team have found that the charging of some materials has a strange tendency to hinge on their past interactions. This week in Nature, Waitukaitis and his colleagues report that carbon-carrying surface molecules can have a role in guiding which way charge is exchanged.

These discoveries “are the best work in a really long time” in the field, says Daniel Lacks, a chemical engineer who has studied triboelectricity at Case Western Reserve University in Cleveland, Ohio. Other teams are investigating how surface area and velocity during impact might govern charge transfer, and how the breaking of chemical bonds contributes.

The influx of research seems to be driven by a desire to scrutinize the fundamental physics at play, says Laurence Marks, a materials scientist at Northwestern University in Evanston, Illinois. A better understanding of the science of static electricity could lead to improved devices that use it to power remote sensors or wearable technologies without batteries, for example. It could also help to prevent the electrical discharges that can cause industrial explosions.

It’s becoming increasingly clear that static electricity is far from a simple phenomenon that abides by one clear-cut set of rules, researchers say. Instead, each exchange of charges could be shaped by several factors that vary with the circumstances. Some of these factors are now known and others are still waiting to be uncovered.

Ancient observations

The history of static electricity dates back to at least the ancient Greek period. Triboelectric includes the Greek words for ‘rubbing’ and ‘amber’, because, after amber is rubbed against fur, it attracts light objects such as feathers. At the end of the sixteenth century, English physicist William Gilbert identified other materials that had the same attractive power, including glass, diamonds and sapphires, and distinguished this type of electrical pull from that of magnetism. In the centuries that followed, scientists learnt that lightning was an electrostatic discharge, a supersized version of the benign zap that comes from shuffling feet across a carpet, and invented early electrostatic generators — forerunners of the Van de Graaff generators that wow students in science museums.

By the mid-eighteenth century, researchers had also begun documenting which materials became negatively charged and which positively, producing lists called triboelectric series. These rank materials from the most likely to charge positively to the most likely to charge negatively, with rabbit fur listed close to the top and silicon near the bottom, for instance.

There was a lull in efforts to understand the phenomenon for part of the twe