Matthew's Prisms
A prism is a transparant material such as glass or crystal that is cut to refract light. When white light travels through the prism it is seperated into seperate colors. It works because the different colors of light travel at different speeds inside the glass. Because the colors of light travel at different speeds, they get bent by different amounts and come out all spread out instead of mixed up. When I was a young girl, I hung prisms that I had taken from my mom's chandalier in my bedroom window to see the rainbow dance across the walls. Matthew had prisms strung across his bedroom window for the same reason. He restored my mother's chandalier for mother's day and that chandalier now hangs in my bedroom window.