Photo a Day Challenge

An Edge

An Edge 1An Edge

Leonardo sought “an edge” over military enemies when he designed a “bombard” to fire deadly exploding shells that fired flaming iron fragments instead of stone balls.  The canon uses a crank worm screw to change aim and trajectory.




4 responses

  1. Always money to be made in an Arms Race, No Fool our Leonardo.

    February 4, 2013 at 2:38 pm

  2. that is quite a drawing and quite worthy of a frame (even though it is a plan)!

    February 4, 2013 at 6:03 pm

  3. your photos are once again ingenious, love the way you manage to spread one place through many themes, clever and so well done.

    February 5, 2013 at 3:17 am

  4. Wonderful processing, as always.

    February 5, 2013 at 10:23 am

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