Using a compass is an essential skill. It’s like having a mental roll of duct tape: You don’t know when you’re going to use it, and it might kick around unused for a long time, but when you’re in a ...

Bill Rollins Jr., 97, wrote and self-published 'Trisecting an Angle,' to try to share his solution with the world.

If you’re familiar with using a compass (the tool that points to magnetic north, not the one that makes circles) the concept of holding the device level makes sense. It must be level for the needle to ...

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