Two-Potato Clock
Learn About the Galvanic Energy within Vegetables, Fruits and More
Insert the zinc and copper bimetallic probes of this electric clock into potatoes (or apples, cucumbers-even salt water or soda pop) and watch as the digital readout comes alive. Hours, minutes, seconds and data are resettable on the clock's red plastic base. Place it on the corner of your desk as a real "student stopper. "Size: 21cm × 8.5cm × 7cm high.
馬鈴薯鐘
將此電子鐘的鋅銅合金棒插入馬鈴薯（或蘋果、小黃瓜、甚至鹽水或蘇
打水）裡，發現鐘的讀數開始出現。時、分、秒和其他資料都可在鐘上
出現。將此鐘放在桌上即可使用。大小：21公分長，8.5公分寬，7公分
高。