Geomag compass
Geomag compass
Rods 10 × Geomag rod icon
Spheres 6 × Geomag ball icon
Author Amafirlian 07:33, 1 May 2007 (UTC)

A small compass.

Building Instructions Edit

  1. Create a triangle, keeping the spheres neutral.
  2. Attach three rods to the 3 spheres using the same polarity, and connect them to a single sphere, creating a tetrahedron.
  3. Repeat the previous step at the other side, but use the opposite polarity to connect ot the original triangle.
    • The result is two back to back tetrahedra with rods that are all aligned (except for the ones in the triangle of step 1), creating a nice compass needle.
  4. Use the last rod and sphere to hang the needle from, and observe how it aligns to the earth magnetic field.

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