The Kid Should See This

How to make Leonardo da Vinci’s self-supporting bridge

With a series of wooden poles and beams, “Stick-Boy” shows his Dad how to build Leonardo da Vinci‘s self-supporting arch bridge, also known as the emergency bridge. No nails, screws, rope, glues, notches, or other fasteners are holding the bridge in place… just friction and gravity.

Related Instructables: Da Vinci Popsicle Stick Bridge. Plus: Try Engineering’s Popsicle Bridge Challenge and Scholastic’s Gumdrop Bridge Challenge.

Watch this next: Red PaperBridge, a temporary installation.

via the always awesome DIY.org.

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