My+toy

__My toy__


 * [[image:Jade_Train2.JPG width="168" height="272" align="center"]] || [[image:Pictures_002.jpg width="278" height="164" align="center"]] || [[image:DSCF5293.JPG width="357" height="271"]] ||
 * //Prototype// || //Working project// || Finished project ||

__Why choose these materials?__ For my toy, it will be made with untreated pine that is polished. These materials are easy to use and carve to the right shape. Safety wise, it is non-toxic and is a safe material.

__What physical properties do these materials have?__ //Picea sitchensis// || (-) 440 (-) || ? || good || ??? || ok || //Araucaria hunsteinii// || (-) 450 (-) || SD5 || ??? || ??? || ??? || //Pseudotsuga menziesii// || 480 500 540 || SD5 [2] || ok || uns || good || //Araucaria cunninghamii// || 480 (-) 530 || SD5 [3] || good || uns || good [3] || The tangential shrinkage for **hoop pine** from FSP to 12% MC is about 3.5% while the radial shrinkage is around 2.5%.
 * ~  ||~   ||~ Softwoods ||~   ||~   ||~   ||
 * __Medium: 450 to 650 kg/m³__ || __Density range kg/m³__ || __Strength group__ || __Work-ability__ || __Bend-ability__ || __Stability__ ||  ||
 * Sitka spruce
 * Klinki pine [1]
 * Douglas fir (Oregon)
 * Hoop pine

__What energy transformation has occurred?__ With the pull of the rope on the train, it causes a knetic energy realease from potentional energy. The horn on the train, is potentional energy then kinetic then to sound energy. The gears in the train are kinetic to kinetic then to electricity then finally light. See On the move for more information on energy conversions.


 * media type="custom" key="614477" || media type="custom" key="735003" ||
 * Prototype || Finished product ||

See My kids with the toy for more information on the kids reaction of the toy.