MAN like pulse glass 人型沸騰球
這是一種在各國科學教育界流行近百年而不衰的有名傳統演示儀器．用於演示飽和汽的特性，氣體的熱漲冷縮及內能（熱能）轉化為動能等理論．
It contains a man-like glass pulse filled with nearly saturate red alcohol, when you hold the bottom bulb by hand, you hand will heat the alcohol and make the saturated pressure of alcohol increase, the red alcohol will run upward to the man's head very fast. The alcohol look like boiling.
Item no : JHL 665