Labels:text | cartoon | screenshot | poster OCR: DENTIST'S DRILL BALL TURBINE BLADES BEARINGS AIR OUTLET TUBE AIR INLET TUBE DRILL THE HIGH-SPEED DRILL that a BIT dentist uses on your teeth uses a tiny horizontal turbine to drive the drill bit. The inlet tube channels compressed air into the - drill. The air then forces its way past the turbine blades, causing them, and the drill bit, to turn thousands of times every second. AAARRGHH Air leaves the drill through the SEE outlet tube. The high speed of the ALSO drill causes its high-pitched noise.
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