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BarbarianB's Navigational - Quadrant - Functional (AB)

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Owner:: BarbarianB Message this owner
Released:: Sunday, June 1, 2008
Origin:: Ohio, United States
Recently Spotted:: In Verdens Lande - Ihr Traumreiseziel?

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About This Item

Obverse

Quadrant
Navigational
Functional
Geocoin

Finish:
Antique Bronze

Default Name:
Quadrant Geocoin

This is a functional quadrant coin which you can actually use to locate your latitude.
see instructions below ↓ ↓ ↓

The quadrant was quite simple in its early days and had many functions added after it was refined by surveyors and navigators. The simple method is for you line up one straight side and aim it at the pole star Polaris. Then the weighted plumb string dangling down intercepting the arc would indicate the degree of latitude. A more complicated method is to measure the sun's altitude at high noon and then using a navigational almanac and a little math to yield your latitude during the day. Later it also included deviation information and tangent marks. You could measure the height and length of something, your latitude, and much more. Used in conjunction with a nocturnal, you could also calculate a more accurate reading of your latitude.

How to use the Quadrant:
1. Locate the North Star, Polaris. You can also use it in the Southern Hemisphere if you know how to triangulate the Southern Cross and Centaurus constellations to locate the southern axis point.

2. Hold the quadrant vertical and ensure there is nothing obstructing the weighted string. The weighted string must hang freely, but still lightly brush up against the degree scale.

3. Hold the coin straight out from your face; and line up the two triangle points on the edge of the coin with the North Star.

4. Once you have a good fix on Polaris, carefully pinch the lower end of the string onto the quadrant to prevent it from moving. Be careful to not pinch the string in a way that covers the degree scale.

5. turn the coin around and look on the degree scale to see where the string crosses it. You now have your approximate latitude.

Antique Bronze Version

Antique Silver Version

Gallery Images related to BarbarianB's Navigational - Quadrant - Functional (AB)

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Tracking History (49772mi) View Map

12/3/2023	Yeti77Wildkatze posted a note for it		Visit Log
Nicht hier
9/8/2023	i2ft posted a note for it		Visit Log
Den var ikke i cachen
5/5/2023	J_Schipper posted a note for it		Visit Log
Not in Verdens Lande
5/4/2023	Dante112 discovered it	Denmark	Visit Log
Gesehen auf Rømø in Verdens Lande GC9WCXK Gruß Dante112
4/30/2023	JAManiacs placed it in Verdens Lande - Ihr Traumreiseziel?	Denmark - 259.19 miles	Visit Log
Gute Reise, warst jetzt lang genug bei mir
11/27/2022	Die Isinger discovered it		Visit Log
Gesehen beim Event " Thorpe Weihnachtsmarkt 2022 ". TFTT
11/27/2022	JAManiacs retrieved it from 🎅 Thorpe Weihnachtsmarkt 2022 🎅	Nordrhein-Westfalen, Germany	Visit Log
...
11/27/2022	Elfriede_Urknall discovered it	Nordrhein-Westfalen, Germany	Visit Log
Auf dem Weihnachtsmarkt Thorpe Museum 2022 gesehen. Vielen Dank fürs zeigen. Grüße Elfriede_Urknall
11/27/2022	SchreiBO placed it in 🎅 Thorpe Weihnachtsmarkt 2022 🎅	Nordrhein-Westfalen, Germany - 6.37 miles	Visit Log

9/28/2022	SchreiBO retrieved it from Glück Auf 2022 - Nichts außer Fußspuren!	Nordrhein-Westfalen, Germany	Visit Log
Nach dem Quizzen lagen noch einige TBs in der Tauschkiste, diese sind nun erstmal bei uns.
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