| Learning Magnetic Compass Skills
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| 1. | It is just amazing how much information can be gained from a 2 ounce piece of plastic and a tiny bit of metal! Not only can you estimate direction from a magnetic compass, but you can also estimate time and location on the earth - pretty cool! |
| I have a great time explaining what I know about magnetic compasses in a way that is thorough, interesting, and a bit of fun. If you have feedback or questions, I'd love to hear from you. - OK, enjoy the trip...But remember when you finish mail me ok |
| This tutorial steps through the process of learning magnetic compass skills |
| learning map reading skills, then combining the two into a sort of wilderness navigation tool kit |
| You'll never get lost again after learning with what is written here, or at least you should be able to get found! |
| Each page of the tutorial links to the next so you can just go on learning right on through |
| What Is a Compass? |
| There are veriouse types of compas, hoever, we will use the basic compass to start you off so that we can explain the whole thing in basic terms Ok? |
| a) | Base plate, hard plastic flat surface on which the rest of the partsof the compass is Mounted |
| b) | He plastic base has rulers on its edges for measuring distances on maps |
| c) | The Compass edge are straight and useful for laying lines on a map |
| e) | The scales on each edge of a compass may have different rulers for different map scales |
| f) | Direction-of-Travel Arrow marked on the base plate (Usually Red) points you in the dirrection you are traveling |
| g) | Magnifier for seeing small map features clearer |
| h) | Index Pointer rear end of the direction-of-Travel Arrow. It ends right at the edge of the dial this is where you will take degree readings |
| i) | Dial ring around the housing that has degree markings engraved, the dial should rotate the entire housing |
| j) | Declination Marks use to orient the compass in an area with known declination |
| k) | Orienting Arrow marked on the floor of the rotating housing moves with the housing when the dial is turned. You use it to orient a compass to a map |
| l) | A series of Orienting parallel lines marked on the floor of the housing and on the plastic base plate |
| m) | The Needle a magnetized piece of metal with one end painted red to indicate ‘ North ‘ |
| n) | Sits on a fine point that is nearly frictionless so it rotates freely when the compass is held fairly level and steady. Housing main part of the compass |
| o) | The needle floats in this round plastic revolving container filled with liquid There is also a Bubble of air in the housing liquid and is used to help you make sure that you are holding the compass fairly level |