To measure time
In India
It wasn't discovered it was invented in Alexandria.
an hourglass
The talking drum is a musical instrument from West Africa, which is hourglass-shaped. It was invented in Oyo, Nigeria by Alaafin Ajiboye.
The hourglass dolphin is called an hourglass dolphin because its black and white markings resemble an hourglass!
An hourglass was used as a timer, with the size of the hourglass determining the length of time it measured.
Hourglass sand timers were most likely invented in ancient Greece or Rome, with the exact inventor being unknown. The concept of using sand to measure time dates back centuries, and the hourglass design is one of the earliest form of mechanical timekeeping devices.
How many seconds are in a hourglass
phantom hourglass is released in 2007.
sand + glass = hourglass
glass+sand=hourglass
glass+sand=hourglass