pendulum clock
Weight-driven grandfather clock
A pendulum clock uses a swinging weight to regulate timekeeping.
The pendulum's consistent oscillation—determined by its length—drives the mechanism at a steady rate.
Invented in the 17th century, pendulum clocks were the most accurate timekeepers for nearly 300 years until quartz and atomic technology superseded them.
The old pendulum clock in the hallway chimed every hour.
Tick-controlling clock component
- gearsToothed rotating machine parts
- weightsHeavy objects for lifting
- bobShort vertical movement
- movementChange in position
anchor · wheelwork · winding · pallet · suspension · mainspring · gear train · verge
Suspended recreational seat
- arcCurved line segment
- momentumProduct of mass, velocity
- gravityMutual mass attraction
- bobShort vertical movement
amplitude · periodic · motion · harmonic · displacement · period · frequency · damping
Degree of correctness
- calibrationAdjusting for measurement accuracy
- regulatorDevice maintaining steady output
- synchronizationAligning timing across systems
- adjustmentAlteration to improve fit
beat · reliability · stability · precision · measurement · seconds · minutes · hours
Father's or mother's father
- mantelDecorative hearth shelf
- VictorianOf a prim era
- heirloomInherited family treasure
- vintageQuality from past eras
ornate · brass · wooden · carved · chiming · craftsmanship · collectible · restoration
escapement
Tick-controlling clock component
movement · anchor · wheelwork · winding · pallet · suspension · mainspring · gear train · verge · crutch
swing
Suspended recreational seat
bob · amplitude · periodic · motion · harmonic · displacement · period · frequency · damping · equilibrium
accuracy
Degree of correctness
- calibrationAdjusting for measurement accuracy
- regulatorDevice maintaining steady output
- synchronizationAligning timing across systems
adjustment · beat · reliability · stability · precision · measurement · seconds · minutes · hours · regulation
grandfather
Father's or mother's father
vintage · ornate · brass · wooden · carved · chiming · craftsmanship · collectible · restoration · patina
- timekeepingwatch, watches, timer, calendar, hourglass
- clockswristwatch, pocket watch, digital watch, smartwatch, marine chronometer
- inventionsprinting press, steam engine, lightbulb, light bulb, microscope
- Pre-electric technologywaterwheel, water wheel, windlass, pulley, plow
- timekeeping deviceswatch, timer, stopwatch, hourglass, egg timer
- timepieceswristwatch, pocket watch, stopwatch, watch, sundial
pendulum clockdigital clock
Timekeeper showing numerals
quartz clock · atomic clock · electric clock · digital watch · quartz watch
clock, suspend, clocks, clockwork, pendulum, pendulous, cloche, clockmaker, pendulums