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Agritech

2,300-year-old technology inspires new powerful ‘tractor beam’ laser

https://www.siliconrepublic.com/machines/tractor-beam-archimedes-screw

It is not uncommon to hear about how ancient ideas have influenced the ideas and technology of the present, but a team from Tel Aviv University (TAU) in Israel is using millennia-old knowledge to create a true science-fiction staple: a laser tractor beam.