小谢尔顿

Did you konw that if gravity were slighty more powerful,the universe would collapse into a ball? Also if gravity were slighty less powerful the universe would fly apart and the would be no stars or planets. it's just that gravity is precisely as strong as it needs to be.And if the ratio of electromagnetic force to the

发表评论

发表评论

提交评论

Hi,您需要填写昵称和邮箱!

  • 昵称 (必填)
  • 邮箱 (必填)
  • 网址
查看更多 >
Copyright ©2024 句子摘抄本