Thumb compass
In this article, we will delve into the exciting world of Thumb compass, exploring its various facets, meanings and impacts on today's society. Thumb compass is a widely discussed and highly relevant topic today, it arouses debate and interest among both experts and the general public. Through a detailed and exhaustive analysis, we will seek to shed light on the most relevant aspects of Thumb compass, allowing the reader to acquire a deeper and more comprehensive knowledge of this fascinating topic. Join us on this journey of discovery and reflection, where we will explore together the meaning and importance of Thumb compass in our lives.
A thumb compass is a type of compass commonly used in orienteering, a sport in which map reading and terrain association are paramount. In cases of homogeneous terrain with few distinct features, a bearing between 2 known points on the map may be used. Consequently, most thumb compasses have minimal or no degree markings at all, and are normally used only to take bearings directly from a map, and to orient a map to magnetic north. Thumb compasses are also often transparent so that an orienteer can hold a map in the hand with the compass and see the map through the compass.
Thumb compasses attach to one's thumb using a small elastic band.
The first commercially successful orienteering thumb compass was the Norcompass, introduced by Suunto in 1983.
Placing an even greater emphasis on speed over accuracy, the wrist compass lacks even a baseplate, consisting solely of a needle capsule strapped to the carpometacarpal joint at the base of the thumb; the thumb serves the function of a baseplate when taking and sighting bearings. It is often used for city and park race orienteering.
See also
References
- ^ "Archived copy" (PDF). Archived from the original (PDF) on 2011-07-24. Retrieved 2009-04-03.
{{cite web}}: CS1 maint: archived copy as title (link)
External links
- Silva 6 Jet Spectra, a typical modern thumb compass
- The Internet Compass Museum gives comprehensive information about all sorts of compasses and how to use them.
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