Time travel is the hypothetical activity of traveling into the past or future. Time travel is a concept in philosophy and fiction, particularly science fiction. In fiction, time travel is typically achieved through the use of a device known as a time machine. The idea of a time machine was popularized by H. G. Wells's 1895 novel The Time ...

2025年1月14日 · Yes, time travel is indeed a real thing. But it's not quite what you've probably seen in the movies. Under certain conditions, it is possible to experience time passing at a different rate than 1 second per second. And there are important reasons why we need to understand this real-world form of time travel.

2023年11月13日 · "This is where time travel can come in and it is scientifically accurate and there are real-world repercussions from that," says Emma Osborne, an astrophysicist at the University of York, in...

2023年4月26日 · Time traveling to the near future is easy: you’re doing it right now at a rate of one second per second, and physicists say that rate can change. According to Einstein’s special theory of...

2013年11月14日 · We begin with the definitional question: what is time travel? We then turn to the major objection to the possibility of backwards time travel: the Grandfather paradox. Next, issues concerning causation are discussed—and then, issues in the metaphysics of time and change.

2023年11月13日 · Scientists are trying to figure out if time travel is even theoretically possible. If it is, it looks like it would take a whole lot more knowledge and resources than humans have now to do it.

2023年11月17日 · Time travel is the concept of moving between different points in time, just like you move between different places. In movies, you might have seen characters using special machines, magical devices or even hopping into a futuristic …

2022年7月13日 · Learn exactly how Einstein's theory of relativity works, and discover how there's nothing in science that says time travel is impossible.

2025年1月10日 · The concept of traveling through the past, present, and future. We explore the possibilities, realities, and mechanics of time machines and activating the theory of time travel.

We know that the faster you travel, the slower time moves for you, compared to someone at rest. Based on special relativity, protons racing around an underground track at 99.999998958 % of the speed of light in facilities like the Large Hadron Collider experience time passing nearly 7000 times slower than stationary human beings do.