gravity
preferred label: گرانی @fa
type: Concept
related: pendulums

time measurement
preferred label: اندازه‌گیری زمان @fa
type: Concept
related: pendulums

pendulums
alternative label: inverted pendulums
related: gravity
related: gravitation
related: time measurement
broader: oscillation
preferred label: آونگ @fa
type: Concept

oscillation
preferred label: نوسان @fa
type: Concept
narrower: pendulums

gravitation
preferred label: گرانش @fa
type: Concept
related: pendulums