第二次世界大战期間,馮·德林休芬(Von Deringshofen)經受了由飞机俯冲后拉起再进入第二次俯冲时产生的失重,他认为这是一件很愉快的事。随着火箭技术的飞速发展,使人类几千年的梦想——飞向宇宙就要成为現实。失重会不会成为宇宙飞行的障碍呢?这一人們从未研究过的課題摆在我們面前。从1949年人类第一次把动物(狗、猴子、白鼠)用火箭发射到高室,研究失重对动物的影响以后,失重的生物学研究开始有了进一步的发展,但由于制成失重条件的限制(主要是火箭技术),絕大多数工作集中在苏联和美国,其他如意大利、法国等也做了一些工作,尤其是苏联取得的成就最大。虽然只有13年的时間,失重的研究由动物进而以人作为实驗对象,由研究几分钟的 During World War II, Von Deringshofen had suffered the weightlessness that had arisen when the aircraft dived and then re-entered the second subduction, which he considered very delightful. With the rapid development of rocket technology, thousands of years of human dreams - to fly to the universe will become a reality. Will weightlessness become an obstacle to spaceflight? The subject that we have never studied before us. Since 1949, humans first rode the animals (dogs, monkeys, mice) to the high room to study the effects of weightlessness on animals. Biological studies on weightlessness started to develop further. However, Restrictions (mainly rocket technology), the vast majority of work concentrated in the Soviet Union and the United States, others such as Italy, France also done some work, especially the Soviet Union made the most achievements. Although only 13 years have passed since the weight loss study was conducted on animals and humans as subjects,