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1、Group 10Chen Yanzhou:53545610Lin Xiaotong:53546262Yu Ling: 53545646Yuan Yufang:53545671Zhang Xinrui:53545554,Time Travel,What is time travel?,Time travel is the concept of moving between different points in time in a manner analogous to moving between different points in space, generally using a the
2、oretical invention, namely a time machine.,CONTENT,Intro Unsolved mystery Measures: black hole, worm hole and wrap travel Paradox end,Unsolved Mystery,In 1912, Titanic was wrecked by its collision with an iceberg. But in 1991, more than half century after the collision, someone found the captain ali
3、ve, like the collision was just happened! Does the time tunnel really exist? How can we realize the time travel?,BLACK HOLE,EINSTEIN,propose,Gravity can slow down the speed of time.,The heavier the matter is, the greater resistance the time needs to overcome,HAWKING,propose,HAWKING,propose,In the ce
4、nter of our Milky Way Galaxy, there exists the heaviest celestial body,has a significant influence on time,a super massive black hole,The black hole is a natural transportation for time travel,HOWEVER, HOW TO MAKE SURE THE SPACESHIP NOT TO BE DEVOURED BY THE BLACK HOLE?,Wormhole,Definition,Propertie
5、s,A narrow tunnel conects black hole and White hole,Able to arouse everywhere; exist a short time,Enable to let matters move faster than light,Relativity: If a matter travels faster than light, it can endure a time travel,Discovery,Negative energy material,Still unsolved,Warp Travel,Grandfather para
6、dox: the inconsistence with causation,Grandfather,Time traveler,Time travelling,Killing !,How can it happen?,reference,Einstein： Hawking： Picture of blackhole： http:/en.wikipedia.org/wiki/Wormhole http:/en.wikipedia.org/wiki/Grandfather_paradox,Group 10Chen Yanzhou:53545610Lin Xiaotong:53546262Yu Li
7、ng: 53545646Yuan Yufang:53545671Zhang Xinrui:53545554,Thank you!,Being ignorant of the regulation of the universe, we are unsure about the feasibility of time travel. New theories should be put forwards and proved. It is much safer for us to say, here are what the laws of physics allow us to imagine doing, hopeful someday in the future we will build the technology that makes time travel happen.,