Customised Cookies

We have created two new videos about customised cookie cutters.  In the first one Alex and Steve H briefly discuss making and using a customised cookie cutter. The second video is almost 15 minutes long and goes into much more detail.  In it Steve first goes through the […]

The Astrolabe – what it is, and how to make one

Before the 17th century the premier astronomical instrument was the astrolabe, an early ancestor of the slide rule, theodolite and planetarium.