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Harbin Aluminum Pocket Transit H-DQL-8/DQL-8/DQL8 Geological Compass
 (

EAN 0600099013518
REGISTERED: 11/25/17
UPDATED: 03/31/20
Harbin Aluminum Pocket Transit H-DQL-8/DQL-8/DQL8 Geological Compass
Harbin Aluminum Pocket Transit H-DQL-8/DQL-8/DQL8 Geological Compass


Specifications
  • Harbin Aluminum Pocket Transit H-DQL-8/DQL-8/DQL8 Geological Compass available on February 16 2015 from Amazon for 80.51
  • UPC bar code 600099013518 ξ1 registered February 16 2015
  • Product category is Video
  • Manufacturered by china

Geological Compass How to use a Compass. http://earthsci.org/education/fieldsk/compass/compass.html http://www.magazine.ordnancesurveyleisure.co.uk/magazine/tscontent/editorials/outdoor-skills/map-and-navigation-skills/using-a-compass.html How to use a Geological Compass. Below is a link on how to use a geological compass in the field. The compass used in the video is a Breithaupt model but usage is basicly identical. The only difference is the location of the dip scale which is not located on the sides of the joint but on the inside above the compass circle, as you will see in the video. Unfortunately there is no such video in English language. The video here is exclusively in German. http://www.geo.fu-berlin.de/fb/e-learning/geofeld/gelaendearbeit/kompass.html -5c.What happens to my compass in the southern hemisphere? For a compass to work properly, the compass needle must be free to rotate and align with the magnetic field. The difference between compasses designed to work in the northern and southern hemispheres is simply the location of the "balance", a weight placed on the needle to ensure it remains in a horizontal plane and hence free to rotate. In the northern hemisphere, the magnetic field dips down into the Earth so the compass needle has a weight on the south end of the needle to keep the needle in the horizontal plane. In the southern hemisphere, the weight needs to be on the north end of the needle. If you did not change the weight, the needle would not rotate freely, and hence would not work properly. Note: in order to make normal use of DQL-8 in the Southern Hemisphere, the geological compass copper circle on the North, rather than you see in the picture on the South. Of course, you can choose to buy GLOBAL COMPASSES, would be better, but the price is high,if necessary.


References
    ^ Harbin Aluminum Pocket Transit H-DQL-8/DQL-8/DQL8 Geological Compass, China. Amazon. (revised Feb 2015)

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