Quadrant Geocoin
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Owner:
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Defiant.
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Released:
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Wednesday, February 29, 2012
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Origin:
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South East England, United Kingdom
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Recently Spotted:
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In the hands of the owner.
This is not collectible.
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I won this coin at the Berkshire Bash 14, held at the Quenns Oak Finchampstead Berrkshire on the 29th February 2012.
The coin is amazing but will be available for discovery only.
This is a functional quadrant coin which you can actually locate your latitude.
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 will yield your latitude during the day. Later it also included deviation information and tangent marks. You could measure the height of something, your latitude, and much more. Used in conjunction with a nocturnal, you could also calculate a more accurate reading of your latitude.
A nice feature of the quadrant is that navigators did not have to look directly into the sun to take a reading like was needed with the cross staff. Each of the two sights had a hole which you used to line up a beam of sunlight without looking though the sights.
The quadrant design is based on a few different quadrants used in the 1300s; however, for manufacturing feasibility, the sights that have implemented are triangle points. Otherwise the holes would be too small for a quadrant this size.
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Tracking History (117374.8mi) View Map
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Defiant. took it to There used to be Lions, Tigers & Bears
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Southern England, United Kingdom
- .21 miles
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Defiant. took it to Which way is the right way?
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Southern England, United Kingdom
- 4.32 miles
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Defiant. took it to TT5 - Taplow FP10
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Southern England, United Kingdom
- 5.73 miles
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Defiant. took it to #69 Berkshire Dash & Cache
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Southern England, United Kingdom
- .1 miles
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Defiant. took it to #68 Berkshire Dash & Cache - Wooden Post
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Southern England, United Kingdom
- 4.25 miles
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Defiant. took it to Harrowing
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Southern England, United Kingdom
- 1.95 miles
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Defiant. took it to #1 Farley Copse - Riddles.
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Southern England, United Kingdom
- .07 miles
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Defiant. took it to #2 Farley Copse - What is it?
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Southern England, United Kingdom
- .37 miles
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Defiant. took it to Perroquet mouillé ici !?!
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Southern England, United Kingdom
- .33 miles
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Defiant. took it to Turnpike Puzzle
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Southern England, United Kingdom
- .2 miles
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