Sand Clock

A sand clock, also known as an hourglass, is a traditional device used to measure the passage of a specific amount of time.

How It Works

• Two Bulbs: It has two vertical glass bulbs connected by a narrow middle neck. 

• Gravity Flow: Sand or fine powder flows from the top bulb down into the lower bulb. 

• Time Tracking: The time duration depends on the amount of sand, coarseness of the grains, and width of the neck.

Common Uses

• Board Games: Times player turns in games like Pictionary or Scrabble. 

• Kitchen Tasks: Times boiling eggs or steeping tea. 

• Timeouts & Study: Helps children or students visualize time during activities or brushing teeth. 

• Decor: Adds a classic or vintage look to home and office desks.