The new darkroom is approaching completion so Steve H made this warning light.  Nigel had a set of LEDs from an old torch.  Steve designed the box to fit the LEDs and four AA batteries (the original torch used eight C sized batteries).  The pieces were cut on […]

Steve H created a set of five short videos about the Astrolabe last year.  They are available on YouTube.  This provides a short overview of the instrument.  It explains its use, history and construction. The second part covers some more detailed calculations. The third part explores the use […]

Steve H built this model of the Eiffel Tower in Paris from a single A4 sheet of card.  He used the Laser Cutter to score and cut the card.   Once you have cut the basic shape it can be folded as shown in the animation above.  The folding […]

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