The Real Science of Time Travel

The Real Science of Time Travel — page 1 — INTRODUCTION WATCHING HISTORY LIVE How would you receive a message from the future Alert An important message was just sent your way You have received a distress call from the future Good thing you have a special machine for just this purpose It allows you to go to any day at any time in the future or in the past You jump in your time machine and rush to the year 2070 to save your friend who is in danger 4

The Real Science of Time Travel — page 2 — Traveling through time is scary But seeing what the world will be like in the future is a thrill You open your eyes and look out the window You see a city skyline in the distance The buildings are just like the structures you’ve seen on science fiction shows You’ve made it Now it’s time to help your friend Time travel has captured our imaginations for a long time But humans have never built a real time machine Is it even possible Traveling into the future is an idea that captivates people worldwide 5

The Real Science of Time Travel — page 3 — CHAPTER 1 TIME TRAVEL ACROSS STORIES Traveling to the past to see dinosaurs in real life would be exciting and scary Fantasy and science fiction movies books and comics let us imagine what time travel could be like Who wouldn’t want to witness major events from the past What if you could talk to people from other time periods Are you curious about what life will be like in the future If you had superpowers you might be able to travel through time to see for yourself The possibilities are exciting and endless 6

The Real Science of Time Travel — page 4 — Visiting a time other than the present has captured the imagination of writers illustrators and movie directors for a long time The idea of time travel first appeared in a Hindu text from the ninth century BCE It took a while for time travel to catch on though It didn’t start appearing regularly in stories until the late nineteenth century Many people are fascinated by traveling back in time to correct mistakes or traveling forward in time to see what the future is like SUPERFAST FACT Time is the only known dimension that allows us to move in only one direction 7

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