论文部分内容阅读
一、行星撞地球。１９０８年，一个７米高的慧星残体穿越大气层在西伯利亚的通古斯地区爆炸。天文学家预测类似事件每１００年至３００年间就会发生一起。 二、伽马射线。伽马射线的辐射来自于遥远的河外星系，其能量深不可测，大约是太阳的１０１６倍。 三、真空现象。随着宇
First, the planet hit the earth. In 1908, a 7-meter-tall comet broke through the atmosphere in the Tungusk area of Siberia. Astronomers predict that similar incidents occur every 100 to 300 years. Second, gamma rays. Gamma ray radiation comes from distant extragalactic galaxies, whose energy is unpredictable, about 1016 times that of the sun. Third, the vacuum phenomenon. With Yu