Week 9: Show Off - Activity 1 – Time Travelling!

​Is there Anything That Is Impossible?
​Time Traveling!
 
Everyone dreams about time traveling. It is in movies, cartoons like "Back to the Future" or "Mr.Peabody & Sherman". Many people including Einstein think it is possible while others say, it is impossible!
 
Einstein's theory of special relativity says that time slows down or speeds up depending on how fast you move relative to something else. Approaching the speed of light, a person inside a spaceship would age much slower than his twin at home. Also, under Einstein's theory of general relativity, gravity can bend time.
 
In my opinion time traveling might be possible but we aren't even close to traveling with the speed of light. If we had a time machine in future, people from future would have sent their good technology to the cavemen that lived long ago. If cavemen could get great technology from future people they would have been exploring and making more inventions using that technology so when the future people would go back to cavemen time they would enjoy the same better technology that they were using in their time but it isn’t true which proves that time traveling is impossible.
 
The other reason is that even if the future people didn't give their technology to cave people they would probably already visit the past and people from the past would probably write about it but no, they didn't do so which gives another reason why I think time traveling is impossible.
 
Write in the comment section below if you think time traveling is possible or time traveling is impossible.   
 
Image credit:
​http://www.physics.org/article-questions.asp?id=131

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