評論
打印
"Of course, if you prefer a more sophisticated method, a method that will really show some knowledge of physics, you can tie the barometer to the end of a rope, swing it as a pendulum and determine the value of'g' at the street level and at the top of the building. From the difference between the two values of'g' the height of the building can, in principle, be worked out."
Finally, he concluded that while there are many ways of solving the problem, "Probably the best and the most practical in a real-life situation is to take the barometer to the basement and knock on the superintendent's door. When the superintendent answers, you speak to him as follows: Mr. Superintendent, I have here a fine barometer. If you will tell me the height of this building, I will gladly give you this barometer!"
At this point, I asked the student if he really didn't know the expected answer to this question. He smiled and admitted that he did, but said he was fed up with standard answers to standard questions. He couldn't understand why there should be so much emphasis on fixed rules rather than creative thinking. So he could not resist the temptation to play a little joke with the educational system, which had been thrown into such a panic by the successful launching of the Russian Sputnik. At that moment I suddenly remembered the question: How many angels can dance on the head of a pin? We teachers are always blaming the students for giving wrong.
