Transparency and Layering from Cooper Hewitt

http://cprhw.tt/o/2DvtR/

http://cprhw.tt/o/2DEPa/

http://cprhw.tt/o/2DAeM/

These three show layering when colors are one on top of the other creating layers.

 

http://cprhw.tt/o/2C4vF/

http://cprhw.tt/o/2C4vv/

http://cprhw.tt/o/2C4vP/

These three show transparency when two of the same image are shown side by side are different because of darker or lighter color or lighting.