论文部分内容阅读
在我们看来,宇航员们的生活是浪漫而神秘的。他们可以悠悠然地漫步于广阔无垠的太空之中,享受着平常人无法体验的人生经历——逃离了芸芸众生永远逃脱不掉的凡尘,将那耀眼的繁星踩在脚下——这样的日子,真让人觉得快活似神仙了!但,果真是这样么?可怕的太阳离开了地球,离开了大气层的保护,人类就像离开了母亲的怀抱一样,会受到各种各样的威胁和欺负。首先,就受到了太阳的欺负。太阳是一个大火炉,其中核心温度是1.5×10~7开尔文(热力学温度)。在距其中心7万千米以内的地方,由氢的原子核之间的冲撞引起的质子反应形成了50亿克的氢核,氢核聚变时产生巨大的能量变成10~(-10)毫米以下短波长的γ射线。γ射线又通过与周围气体冲撞加热而失去能量,变成波长较长的X射线或紫外线。最后,在距太阳中心60
In our opinion, the life of astronauts is romantic and mysterious. They can wander leisurely into vast expanses of space, enjoying life experiences that ordinary people can not experience - to flee the world where mortal beings will never escape and to lay their dazzling stars on their feet People feel happy and fairy! But, if so? Terrible sun left the earth, left the protection of the atmosphere, humanity is like leaving the mother’s arms, will be subjected to a variety of threats and bullying. First, it is bullied by the sun. The sun is a large furnace with a core temperature of 1.5 × 10 -7 Kelvin (thermodynamic temperature). At a distance of 70,000 km from its center, proton reactions caused by collisions between hydrogen nuclei form 5 billion grams of hydrogen nuclei, which generate huge amounts of energy below 10 -10 millimeters when fusion occurs Short-wavelength gamma rays. Gamma rays, in turn, lose their energy by colliding with the surrounding gas and heating, resulting in long-wavelength X-rays or ultraviolet rays. Finally, 60 yards from the center of the sun