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贵刊1995年第二期p11刊登了师生平先生的大作《水杯倒置实验研究》,读后收益匪浅。文中介绍:“取一根内径约15毫米、长约12米的半透明厚壁塑料管(可弯曲),灌满水(不要带气泡),密封好一端,另一端放在水槽里,水槽放在地面上,把封口端沿楼梯向上拿,观察管内水柱所能达到的高度,并用皮尺量出它的高度,由此粗略计算大气压的量值。”我们曾用拖拉机油箱使用的耐油软塑料管(大气压并没把它的上端压扁),借助升降国旗的线绳
In the second issue of the Journal of the People’s Republic of China, published in 1995, “Square Inverted Experimental Study,” Mr. Shi Pingping’s masterpiece was published. The article describes: “Take a translucent thick-walled plastic tube with an inner diameter of about 15 mm and a length of about 12 meters (flexible), fill it with water (not with bubbles), seal the end, and put the other end in the sink. Put it on the ground, take the sealing end up the stairs, observe the height of the water column inside the tube, and measure its height with a tape measure, which roughly calculates the value of the atmospheric pressure.”We used the oil resistance of the tractor tank Plastic pipe (the atmospheric pressure did not flatten its upper end), with the aid of the rope lifting flag