В России ответили на имитирующие высадку на Украине учения НАТО18:04
Ultrasonic speakers are lowered into the sea to test if they scare fish away
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Identify who spoke when — detects up to 4 speakers with per-frame activity probabilities:
Today's actuators, even the state-of-the-art ones, are still largely made from metals, hard plastics and electronics. But there are other ideas around. Tolley and his colleagues have been working on a very different approach.