Ever wish you could go back in time to stop the assassination of Martin Luther King? What about traveling into the future to see our colonization of Mars? With paradoxes, time dilation, and quantum physics all at play, the concept of a “fourth dimension” can be complex. The real question – is time travel truly possible?
Stephen Hawking: How to Build a Time Machine [Daily Mail] by Stephen Hawking
Article | 13 minutes
“If we want to travel into the future, we just need to go fast. Really fast. And I think the only way we’re ever likely to do that is by going into space. The fastest manned vehicle in history was Apollo 10. It reached 25,000mph. But to travel in time we’ll have to go more than 2,000 times faster. And to do that we’d need a much bigger ship, a truly enormous machine. The ship would have to be big enough to carry a huge amount of fuel, enough to accelerate it to nearly the speed of light. Getting to just beneath the cosmic speed limit would require six whole years at full power.”
Time Travel: Theories, Paradoxes & Possibilities [Space.com] by Elizabeth Howell
Article & Video | 10 minutes
“While time travel does not appear possible — at least, possible in the sense that the humans would survive it — with the physics that we use today, the field is constantly changing. Advances in quantum theories could perhaps provide some understanding of how to overcome time travel paradoxes.”
Time Travel Is Real. Here Are the People and Spacecraft Who Have Done It [WIRED] by Seth Kadish
Article & Infographic | 6 minutes
“To get ahead in life, spend some time on the International Space Station. Why? Well, according to the theory of relativity, astronauts on the ISS age more slowly due to the spacecraft’s high orbital speed.”
Have a Longer Read
- A Sound of Thunder by Ray Bradbury
- A Brief History of Time: From the Big Bang to Black Holes by Stephen Hawking
- 11-22-63: A Novel by Stephen King
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