Author Archives: jaakk

Stone Skipping Machine (a quick update)

First prototype

First prototype

Releasing the stone

Releasing the stone

Second prototype

Second prototype

During first couple of days after hours of welding, cutting and drilling we have managed to test the first functional prototypes of our machine and are ready to present it Thursday night.

J + O

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Stone Skipping Machine

We are going to design and produce a stone skipping machine as well as custom throwing stones and are using clay pigeon trap as an inspiration for building the throwing mechanism.

Clay Pidgeon Trap Patent (1936)

Stone skipping is a pastime which involves throwing a stone with a flattened surface across a lake of other body of water in such way that it bounces off the surface of the water. The object of the game is to see how many times a stone can be made to bounce before sinking. The world record is 51 skips and was set by Russell Byars in 2007

Stone Skipping

An early explanation of the physics of stone skipping was provided in 18th century. Research undertaken by a team led by French physicist, Lydéric Boucquet, has discovered that and angle of about 20° between the stone and the water’s surface is optimal. Bocquet and his colleagues were surprised to discover that changes in speed androtation did not change this fact.

Jaak + Onur