Plateau's Bubbles
These visual proofs of geometric problems aid in practical work
Students dip a "bubble-wand" framework of four different shapes into a solution of dishwashing liquid and water. When they pull it out, the shape supports a fascinating three-dimensional from made of soap film. Each surface occupies the smallest possible area--forming "fundamental shapes". Cube, octahedron, and triangular prism come with instruction booklet and two clear plastic for convenient overhead projection use.
可產生各種形狀的氣泡裝置
將四種不同形狀的製造泡泡的框架放入洗碗劑水溶液中,再拿出來。
即可產生不同的三度空間的泡泡。因泡泡會欲產生表面積最小之形
式,正方體,三角錐,八面體即產生。並有說明書。