近两年来,有关超重、失重的演示实验设计方案不时出现在各种刊物上,真可谓百花齐放,各有千秋。我们学校小制作小组的同学用易拉罐和矿泉水瓶设计了一组有趣而简单的实验,效果 In the past two years, demonstrative design programs for overweight and weightlessness have appeared in various publications from time to time, and they can be described as flourishing. The students of our school’s small production team designed a set of interesting and simple experiments using cans and water bottles.