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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

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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

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