Electrons repel each other because they are negatively charged. An experiment now confirms a fifty-year-old theory that electrons can also attract one another as a result of repulsion from other electrons. See Letter p.395
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Kontos, T. Attractive electrons from nanoengineering. Nature 535, 362–363 (2016). https://doi.org/10.1038/535362a
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DOI: https://doi.org/10.1038/535362a