• Flash animations

You may use animations to simulate the workings of a machinery.

• 'Building the bridge'
  In the present case, the jigsaw puzzle model has been followed to allow the users to put the bridge into place. The two ribs of the bridge are placed on mobile layers ('calques' in French) and the user has to bring them to the appropriate position indicated by the target coordinates from the left and top of the margin.
  • Mobile elements with Javascripts:
  here, you need to combine geometry (mobile elements) with arithmetical coordinates and interactive Javascripts to obtain the result.