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- Electric motor | Definition, Types, Facts | Britannica
Electric motor, any of a class of devices that convert electrical energy to mechanical energy, usually by employing electromagnetic phenomena Most electric motors develop their mechanical torque by the interaction of conductors carrying current in a direction at right angles to a magnetic field
- Water supply system - Coagulation, Flocculation | Britannica
The flocculation tank has wooden paddle-type mixers that slowly rotate on a horizontal motor-driven shaft After flocculation the water flows into the sedimentation tanks
- Internal-combustion engine | Definition Facts | Britannica
The most common internal-combustion engine is the four-stroke, gasoline -powered, homogeneous-charge, spark-ignition engine This is because of its outstanding performance as a prime mover in the ground transportation industry
- Nervous system disease - Motor Neuron, Symptoms, Treatment | Britannica
At this site the motor nerve impulse normally triggers the release of the neurotransmitter acetylcholine, which diffuses across the synaptic gap between the terminal of the nerve and the specialized end-plate region of the muscle-fibre membrane
- Schizophrenia | Definition, Symptoms, Treatment | Britannica
Mutism (inability to talk), extreme compliance, and absence of almost all voluntary actions are also common This state of inactivity is at times preceded or interrupted by episodes of excessive motor activity and excitement, generally of an impulsive, unpredictable kind
- Motorboat | Types, Uses Maintenance | Britannica
The two most common types of motorboats are classified by the manner in which the engine is installed An inboard motorboat has the engine permanently mounted within the hull, with the drive shaft passing through the hull
- Muscle disease | Description, Causes, Types, Treatment - Britannica
The twitching of muscle fibres controlled by a single motor nerve cell, called fasciculation, may occur in a healthy person, but it usually indicates that the muscular atrophy is due to disease of motor nerve cells in the spinal cord
- Nervous system disease - Emotional Disturbances | Britannica
Although depression is most common, euphoria or mood swings may occur with disease of the frontal lobes of the brain Symptoms expressed in the limbs and trunk that may indicate neurological disease include weakness and wasting of muscles, clumsiness, and unwanted movements
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