Computing by Steam
Day/Time: Saturday and Sunday
Location: Fiesta HallWorking Meccano models of Charles Babbage's Difference Engines #1 and #2 will be explained and demonstrated. My model of Difference Engine #1 (based on the fragment of Difference Engine #1 which Babbage assembled in 1832) was pictured in the premier issue of Make. Since then I have completed a much more ambitious model of Difference Engine #2 (based on Babbage's original drawings of 1848). Both models are constructed almost entirely from standard Meccano set parts.
These machines calculate using the "method of differences", and can tabulate polynomial expressions entirely automatically by simply turning a hand crank.
Tim and Lisa Robinson