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The smallest 'washing machine' ever made

A team from the Swiss engineering lab MPI Ultrasonics believes that their novel invention may eliminate the use of laundry machines in the future. The new creation, christened Dolfi, is a smooth, white pocket-sized pebble that mimics a washing bar soap. To use it, the user fills up a basin with water, adds a washing detergent, turns on the small device and drops it in water.

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