注册 登录  
 加关注
   显示下一条  |  关闭
温馨提示!由于新浪微博认证机制调整,您的新浪微博帐号绑定已过期,请重新绑定!立即重新绑定新浪微博》  |  关闭

十年磨一剑,攀蟾折桂,舍“吾”其谁!

We fight!We conquer!

 
 
 

日志

 
 

Think twice before moving ——Bob·Liu  

2016-03-15 13:37:12|  分类: 默认分类 |  标签: |举报 |字号 订阅

  下载LOFTER 我的照片书  |
 

Mars, which people places great hopes on, is the most similar planet to the Earth among all those planets we know. Many of us think it’s possible to move away from the Earth to Mars soon. But my opinion is quite different.

As we know, mankind has never been to Mars by ourselves. The only thing we did is to send a few probes to it. Although the measured numbers said that it’s safe to live on Mars, there must be many unpredictable things in those numbers.

Mars has seasons and atmosphere from that on the Earth, but the average temperature on it is only -23℃. And most of its atmosphere is CO?. Also, the gravity on the Earth is 3 times bigger than that on Mars. This is a very big problem for us if we want to live on it. We’ll have to shoulder and air tank if we want to walk on it. What’s more, if you don’t wear special equipment, you’ll float off into space. The moment you run out of Oxygen, you’ll die without a burial place and your body will never be found.

On second thoughts, the way and time to get there, on the other hand, is another big problem. It took NASA’s spacecraft 10 months to get there. I believe it must be very boring if we’ll have a journey like this. Moreover, our spacecraft can’t carry a lot of people now, not even mention bringing some building stuff and tools.

Maybe one day we can move to Mars, but there’s still a long way to go for us. Besides waiting for the development of technology, the only we can do is to protect the environment. So we can live a better life during the waiting time on the Earth.

 

——刘畅

  评论这张
 
阅读(19)| 评论(0)
推荐 转载

历史上的今天

在LOFTER的更多文章

评论

<#--最新日志,群博日志--> <#--推荐日志--> <#--引用记录--> <#--博主推荐--> <#--随机阅读--> <#--首页推荐--> <#--历史上的今天--> <#--被推荐日志--> <#--上一篇,下一篇--> <#-- 热度 --> <#-- 网易新闻广告 --> <#--右边模块结构--> <#--评论模块结构--> <#--引用模块结构--> <#--博主发起的投票-->
 
 
 
 
 
 
 
 
 
 
 
 
 
 

页脚

网易公司版权所有 ©1997-2017