Ask handicraft Jing to arrive

The craft that speaks of a butterfly cup creates principle, the many people all know:"Base of cup inside, pack one colourful Die on the thin spring coil, the cup is subjected to a minuteness harassment, the colourful Die will vibrate.Cup bottom the center, the Qian packs a similar at the thing of convex lens function.Have no wine in the cup, the colourful Die is in the convex lens focus outside.Pour wine in the cup, the wine function is one concave lens.Convex lens and concave lens match to together become a compound convex lens.The colourful Die is then fallen the focus of reuniting the convex lens inside, the colourful Die passes to reunite convex lens formation to enlarge virtual image diagram, the person canned clearly see enlarge of butterfly."
Speak of come simple, but do be not so return to matter.Craft is complicated, ask handicraft Jing to arrive, and, the non- handicraft can not produce to model.