Scientists have devised a way to package ultrasonic technology into the head of a faucet

If you've ever taken a ring to a jeweler to be cleaned, you've seen ultrasonic cleaning at work. The ring (or in a medical setting, the instruments) is placed into a metal tray and submerged in cleaning solution; the device is switched on and hums merrily for a few minutes, and the ring emerges, clean and shiny as if new. But suppose you could obtain similar results from a faucet? What if such technology was portable, and better yet, usable in food preparation or even on human skin? A company in Britain has developed such a device, the StarStream, and claims it is a thousand times as effective as water.

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