My Favourite Experiment - David Haller - Calcium Carbide Cannon

The first of a whole afternoon and evening full of great activities, demos and experiments, David Haller started off with a bang showing me his homemade calcium carbide cannon! Many thanks go to this very inspiring teacher who not only took the time to show me more fun hands-on science than I expected to find on my whole trip up to Canada, but all had the kindness to welcome me into his home, and even let me extend my stay to work on editing and uploading all of the videos I took of him.