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2016年4月6日凌晨,中国首颗微重力科学实验卫星——实践十号卫星,搭载着19项创新性科学实验,进入了太空。由于拥有地球上所没有的微重力环境,太空成为特殊的实验场,多年来吸引着人类不断地来到这里开展实验。来自太空的礼物重力又称零重力。失重,指物体失去重量,而不是失去重力。航天器在太空中飞行时,只受地球、月球、行星、太阳等天体的引力作用。在这种情况下,航天器及其内部的物体相互之间没有拉、压、剪切等作用力,即处于失重状态。
In the early hours of April 6, 2016, China’s first microgravity scientific experimental satellite-Practice No.10 satellite carrying 19 innovative scientific experiments entered space. Due to its own micro-gravity environment on Earth, space has become a special experimental field, attracting many human beings to come here continuously for many years to carry out experiments. Gravity from space gifts, also known as zero gravity. Weight loss, refers to the loss of weight of objects, not lose gravity. Spacecraft in space flight, only by the Earth, the moon, planets, the sun and other celestial bodies gravity. Under such circumstances, the spacecraft and its internal objects do not pull, press, shear and other forces between each other, that is, in a state of weightlessness.