JohnnyM.'s Sextant Geocoin
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Owner:
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JohnnyM.
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Released:
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Sunday, November 22, 2009
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Origin:
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Hlavní město Praha, Czechia
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Recently Spotted:
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In the hands of the owner.
This is collectible.
Use TB35QJF to reference this item.
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To be in small collection of my owner.
I want to travel from event to event with my owner.
You can see me in the hands of JohnnyM. mostly stays in Prague (Czech Republic).
The octant and sextant replaced most of the earlier navigation tools in the late 1700s such as the back staff, mariner's astrolabe, and quadrant. The octant is 1/8 of a circle and a sextant is 1/6 of a circle. The sextant allowed for more range in the degree scale over the octant.
The biggest improvement the sextant made over all other sighting tools (except the octant) is its double reflecting mirrors which eliminated the ocular parallax other tools caused. It also allowed for greater accuracy by having finer degree adjustments.
The sextant design is so universal and accurate that it is still used on ships today as a backup instrument to electrical navigation devices. Even aircraft used these as backups if their avionic systems failed.
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Tracking History () View Map
ost-europäer discovered it
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Vielen Dank fürs Zeigen sagt der Ost-Europäer.
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onkelb discovered it
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Discovered when I view a youtube film regarding Maze event.
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Jessica07 discovered it
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marsso discovered it
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Discovered it. Thank you for sharing.
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DD_LL discovered it
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Vor langer Zeit gesehen und nun discoverd
Gesammelt auf Megas / Events / an Autos oder in ECHT :-)
Danke fürs zeigen
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davidandry discovered it
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Abbiamo scoperto questo codice assieme a molti altri al mega event Austriaco in Pitztal. Grazie per averlo condiviso !!
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Domout discovered it
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TRACKABLES IN THE MAZE
Vu au Maze de Prague, j'ai retrouvé la liste dans ma valise 😊
Dunkerque, Hauts de France
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FroJer discovered it
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Discovered it. Thank you for sharing.
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choupinette83 discovered it
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britispriti discovered it
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Heute mal ein wenig Ordnung in den Fotoordner gebracht und dabei noch den einen und anderen TB entdeckt
Danke für´s Zeigen sagen britispriti
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