Did you read the article? It was not about ultrasonic power delivery. I’d descri... | Hacker News

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JK-Swizzle 3 months ago | parent | context | favorite | on: Batteries Not Included, or Required, for These Sma...

Did you read the article? It was not about ultrasonic power delivery. I’d describe it more as tuned ultrasonic bells.

jacquesm 3 months ago [–]

Ahh I completely misunderstood the directional flow, thank you for the correction.

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