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When was the hourglass created?
It was described in 1338, so probably sometime before then.
How is math used in an hourglass?
Math is used in a hourglass to make sure you have the proper flow rate for the desired amount of time. If the sand flows too fast then you need to make a smaller opening, if to slow you need too make a wider opening or add more sand.
Is a lever an hourglass?
No, a lever is a simple machine that makes life easier. An hourglass is a glass container tapered in the center with sand in the bottom, and is used to tell time. They are not the same thing.
What is the uncertainty in a good sand based egg timer what about an hourglass what about the candles used for making time at night?
Balance of bod y
What was the hourglass used for?
An hourglass was used as a timer, with the size of the hourglass determining the length of time it measured.
Can ginger be used for anything else besides food?
Yes
Why is only desert sand used in hourglasses?
Any sand used in an hourglass should be dry. If there is any moisture in the sand, it may clump, or simply not flow smoothly through the narrow portion (the metering portion) of the hourglass. As an aside, if you take "regular" sand, spread it out on a canvas in the sun or on a baking sheet in a warm oven, you'll drive off the moisture and end up with dry sand. If your salt is clumping, try drying it in the sun or on a warm (not hot) stove or in a warm oven. Works every time.
When was the sand timer invented?
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.
What else besides electricity is hydroelectricity be used for?
for rivers in Jamaica that can be used for hydro electricity
What else besides electricity can wind turbines be used for?
Annoying noise...
What culture used the hourglass?
Many cultures created and used different forms of an 'hourglass'.
Are torpedoes used for anything else besides attacking enemies?
target practice.
