In researching the astrolabe and related tools, geometric construction comes up regularly. I find the process of using a straight edge and compass to create accurate designs to be fascinating in and of itself. One of my ongoing projects is drafting an astrolabe using just those tools.

The other day I ran across a fascinating and addictive puzzle game that teaches geometric construction over the course of many intricate problems.

Euclidea can be played using a browser, or via mobile apps downloadable from Google Play or the App Store.

Euclidea

The game starts with a series of simple tutorials to teach the interface, then proceeds to present the user with more and more challenging tasks.

Fun, and useful to anyone interested in astrolabes or geometric construction.