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A quadcopter, also called a quadrotor helicopter, quadrocopter, quadrotor and quadracopter, is a multicopter that is lifted and propelled by four rotors. Quadcopters are classified as rotorcraft, as opposed to fixed-wing aircraft, ... -->
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Author: 3 years ago
Opioid dependence is a medical diagnosis characterized by an individual's inability to stop using opiates (morphine, heroin, codeine, oxycodone, hydrocodone, etc.) even when objectively it is in ... -->
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Author: 3 years ago
A meteor shower is a celestial event in which a number of meteors are observed to radiate, or originate, from one point in the night sky. These ... -->
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Author: 3 years ago
WINEMAKING VIDEO PART I Winemaking, or vinification, is the production of wine, starting with selection of the grapes or other produce and ending with bottling ... -->
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Author: 3 years ago