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Glossary

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Term Definition
ImpulseEnergy transferred to the balance or pendulum to maintain it in oscillation.
 
InhibitionElectronic procedure for fine tuning a quartz watch without modifying the specific frequency of the quartz, periodically (every 60 seconds) adapts the moment of electrical impulse to the motor, correcting the display.
 
InvarA metal alloy comprised of about 36% nickel, 64% iron, having a very low coefficient of expansion. Comes from the word "invariable"
 
ISOCHRONISMCondition when time taken for 1 vibration remains the same, regardless of amplitude.
 
JEWELA Synthetic material used to make a modern watch movement's bearings - These synthetic Rubies are almost as hard as diamonds. The "Jewels" reduce friction and maintain the properties of the oil longer.
 
KINETIC ENERGYEnergy possessed by a body in motion.
 


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