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近年来,世界科技迅速发展,新发明层出不穷,人类的劳动与生活条件也因之有显著改善。不过有一些发明还不能尽可人意,在体积、自重、速度、效率、成本或者安全方面还存在问题,需要改进。尚有不少老的以及全新的科技课题,等待人们去解决。本刊从外刊资料选编若干篇科技小品,就上述问题进行探讨,并提出一些有趣的设想。它们也谈到一些尚未实现的发明,不过这些发明并非空中楼阁,而是在目前世界科技水平的基础上提出的设想。
In recent years, with the rapid development of science and technology in the world and the endless stream of new inventions, the conditions of mankind's labor and living conditions have also remarkably improved. However, some inventions are not yet satisfactory and there are still problems in terms of size, weight, speed, efficiency, cost or safety and need to be improved. There are still many old and new science and technology issues waiting for people to solve their problems. The magazine selected a number of science and technology sketches from foreign journal materials to discuss the above issues and put forward some interesting ideas. They also talk about some unrealized inventions, but these inventions are not based on the idea of the air. They are based on the current scientific and technological level in the world.