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1989年东北三省青少年地学夏令营的小同学们,经过艰辛的登山活动,来到了长白山天池边。这水天一色的湛蓝湖水顿时吸引了大家,水面上漂浮着的鸡蛋大小的多孔的石头,更让大家觉得新奇。是石头吗?石头哪能比水轻呢?怪哉!怪哉! “石沉大海”、“水落石出”等常用的成语都告诉人们:岩石是比水重的物质。然而,在长白山上火口湖一天池的附近,却分布着一种比水轻可以漂浮在水面上的岩石一浮石,这大概可以算是最轻的岩石了吧! 据《长白征存录》记载:在天池和二道白河一带,“水面有浮石,形如肺,名海肺石”。这寥寥数语确切地描述了浮石的两大特点:其一,浮石比水轻,能
In 1989, three young students from the three provinces in northeast China went to the Changbaishan Tianchi area after hard-climbing activities. This azure blue sky suddenly attracted everyone, the size of the floating eggs on the water, the porous stone, let everyone feel novel. Stones? How stones can be lighter than water? Strange! Strange!! “Stones”, “Stones” and other commonly used idioms have told people: rocks are heavier than water material. However, on the Changbai Mountain, near the Huichi Kouhu Lake in a day pool, there is a pumice rock that is lighter than water and can float on the water. This is probably the lightest rock! According to the Record of Changbai Zheng Tianchi and Erdaobaihe area, “Pumice stone surface, shaped like a lung, a sea of stone”. This few few words exactly describe the two characteristics of pumice: First, pumice is lighter than water, can