Also known as revolving lanterns, the use of heat convection to drive the #impeller to rotate the images inside these lanthorns is the driving principle behind them. The simplest form of motion recreation. Heat = movement and flame = illumination. We still see heat convection used in late 19th century pre cinema optical toys. The ‘Zou Ma Deng Lantern’ is one of the most innovative, with a shaft inside the body of the lantern, fitted with paper vanes. The flame creates a current of heat that rotates the shaft and sets a paper cut-out, usually a paper horse or #dragon, into motion from the convection.