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前些日子,看到一家电视台播放了这么一则报道:一位物理老师给学生做了一个说明条件反射的实验。他把一只青蛙拎起来,投进盏满开水的烧杯里,青蛙立即从烧杯里跳出来逃走了。接着他把烧杯里的开水全部倒光,再放满一杯冷水,然后把放在烧杯下的酒精灯点燃了,拎起另外一只青蛙放进烧杯里,他提醒同学们注意青蛙的反应。青蛙不但没有从烧杯里跳出来,而且看样子还很自在地一动不动地蹲着。烧杯里的水温逐渐增高,最后终于达到100℃,水开了,青蛙没有任何反应,它被烫死了!很多人看过这个电视报道,都说这位老
A few days ago, I saw a television broadcast such a story: a physics teacher to the students to do a description of conditioning experiments. He picked up a frog and dropped it into a beaker of boiling water. The frog jumped out of the beaker and ran away. He then turned all the boiled water in the beaker to a full cup of cold water, lit the alcohol lamp under the beaker, and picked up another frog in the beaker. He reminded the students to pay attention to the frog’s reaction. Not only did the frog jump out of the beaker, it looked as if he was squatting motionlessly. The water temperature in the beaker gradually increased, finally reached 100 ℃, the water was on, the frog did not react, it was burnt to death! Many people read this television report, said the old