Small crank rotation: Listen & Download Small crank rotation .mp3 Error! Change your browser, please! ⇓ Download Cork in the sink, bath ⚠ Chemistry, Bunsen Burner ⚠ Police whistle ⚠ Ice crushing ⚠ Scanning goods at the supermarket checkout ⚠ Sine wave (975Hz) ⚠ The rumble and wave of the lightsaber ⚠ Umbrella opening ⚠ Open wooden box ⚠ Hum, High-frequency squeak ⚠ Suction effect, Wet ⚠ Numeric Count, Warning System, Female Voice ⚠ ★★★★★