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Science world 🌍 on Instagram: "A simple setup with sound and water creates an effect where flowing water seems frozen, moves backward, or flows in slow motion. The effect is only visible through a 24 fps camera, not to the naked eye. 🔉〰️🎶 The setup needs a powered speaker, a water source, a soft rubber hose, tape, tone generating software, and a camera set to 24 fps. The hose is placed against the speaker so it vibrates with the sound. When the tone generator is set to 24 Hz and water flows t