What is this device called?
        
                                            
                    
                        
                        
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                    This is a pivotal piece for the engine. It’s the crankshaft and it transforms the reciprocating motion of the pistons that go up and down, into a rotational motion. This moves the car forward.
			    
                    
        
        Allen J. Schaben/Los Angeles Times via Getty Images
                Allen J. Schaben/Los Angeles Times via Getty Images
            What is this device called?
- Idle shaft
 - Rotator
 - Crankshaft
 - Battery stick
 
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