sand timers
Falling grain measurers
Sand timers are devices that measure fixed intervals of time by allowing fine sand to flow through a narrow passage from one glass bulb to another.
When all the sand has fallen to the bottom bulb, the designated time has elapsed, and the timer can be flipped to start again.
Also called hourglasses, though most sand timers measure much shorter periods—commonly three to five minutes.
We use a sand timer for board game turns.
They remain popular for their simplicity and the satisfying visual of time passing.
- hourglassesSand-flow timing devices
- timekeeperDuration-measuring person or device
- tea brewingSteeping leaves in hot water
- intervalDuration between two points
- board gamesStructured tabletop play
game night · measure · sift · stopwatch · countdown · running out · passage · flow · mindfulness practice · classroom activities · sandglass · second · minute · turnover · antique clocks · duration · old · horology
sand timersatomic clocks
Devices measuring time via particle vibrations
quartz clocks · digital watches · chronometers · synchronized clocks
sand, timer, timers, sands, sandy, sandier, sandiest, sanded, sanding