Spinning hourglass
- Availability:Out Stock
- Reference:70031
It is not known precisely what the origin of the hourglasses. It is believed that the Roman armies used them overnight to so accurately calculate sunrise and create strategies for battle; it has also been said that they were invented by a French monk toward the end of the eighth century. At that time, Charlemagne, King of the Franks, had one so big that only should be turned every 12 hours. The hourglasses were widely used in navigation to measure the time of the voyages, especially when the sky is cloudy and could not be used or the astrolabe and the noctolabe to find the time with the stars. This spinning hourglass was used in navigation to find the longitude where the boat was. A sailor turned and was continuously recording the time that had passed since the start of the voyage.
Features:
High:13.5 cm.
Width: 9.0 cm.
Depth: 9.0 cm.
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13 Review (s) "Spinning hourglass"
- x0sG3Hw4
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x0sG3Hw4
12 de Agosto del 2016
I di\'ndt know where to find this info then kaboom it was here.Price Recommendation Quality
- 4BBd1zbSGYAw
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4BBd1zbSGYAw
12 de Agosto del 2016
Ah, i see. Well th\'ats not too tricky at all!\"Price Recommendation Quality
- d4ttMyWQ
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d4ttMyWQ
04 de Enero del 2017
The hoesnty of your posting is there for all to seePrice Recommendation Quality
- vqJCPPFMzjk
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vqJCPPFMzjk
04 de Enero del 2017
Very valid, pithy, sucitncc, and on point. WD.Price Recommendation Quality
- 6eKhJbifUaa
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6eKhJbifUaa
04 de Enero del 2017
Thanks for cointnbutirg. It\'s helped me understand the issues.Price Recommendation Quality
