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'Contempo' - a modern Hourglass

Other Products in Other Products group: Radiometers 
Newton's Gravity Glass 
"Egg" Timer  
Anemometer  
With origins going back more than 1000 years, the Hourglass is a reminder of how the accurate measurement of time was once very difficult.

This modern interpretation of the traditional one-hour hourglass is caged within a stainless steel and aluminium frame and is filled with an attractive silver sand.  The hourglass itself is hand-made by skilled glassblowers - see below for more detail.

Size: approximately 12½" x 6¾" diameter  (32cm x 17.1cm)
Weight: typically 4lbs (1.8kgm)

Model CHG
Price: £45.95  (£54.95 incl. carriage & packing*)

* Carriage paid to; England, Wales, Scotland (incl. Highlands & Islands), N. Ireland, Isle of Man & the Isles of Scilly.  Please enquire for elsewhere.

Back to the Classical one-hour Hourglass

More about hourglass history
Early navigators were users of precision hourglass' and Columbus used a half-hour version on his voyages to the New World.  Some European Kings used teams of servants whose sole task was to immediately flip the hourglass each time the sand ran out and, by keeping count of the number of 'flips', could track time more accurately than previously possible.

The Glass Blower's skill
The angle of the sides of each bulb plus the size of the pin-hole connecting the two bulbs are major factors affecting the flow of sand in an hourglass.  Having created two bulbs with the correct shape, the glass blowers then had to create a pin-hole of precisely the right size to correctly regulate the flow of sand.
 

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