i dont know they probably built it in the mid evil times
The product of weathering and erosion.
Even the Sand Is Made of Seashells was created in 2006.
glass is made from sand
sand and water????
It is a fact that sand is a natural resource.
It is unknown when the sand timer, also known as the hourglass, was invented. There are records of sand timers being used as early as the 1300s when they were a preferred timepiece for sailing, as other forms of keeping time were not reliable on the swaying ships.
in the olden times it was made out of wood and sometimes people had sand timers...
Most egg timers would work in space (zero gravity) apart from the sand hourglass type. The rely on springs and gears to keep time not weights.
glass+sand=hourglass
glass+sand=hourglass
sand + glass = hourglass
Hourglass is a misnomer because it's made out of glass but every sand-dropping does'nt last for hours, it lasts for minutes.
sand+ glass =one hourglass
glass+sand=hourglass
glass+sand=hourglass
The ''Sand Clock'' is really called an Hourglass, and the reason for that is because it takes the sand and hour to reach the other end of the glass. An hourglass is a curved shaped object that has two ends. The hourglass Has sand inside it which Is placed at the bottom of the hourglass, but when you turn the hourglass up side down, the sand slowly runs through a hole to the other end of the glass. When the sand has finally finished flowing it will end up looking like how it was in the first place.
An hour's worth.