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The Logic of Time Travel Can Get Pretty Trippy

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Time travel is a common theme in fiction—but writers, artists, and designers all have different ideas of what moving between different points in history would look like, and how these journeys would affect both the traveler and those they encounter. Minute Physics' video below explores the distinctions between time travel as presented in the book Ender's Game, movies like Planet of the Apes and Back to the Future, and the video game Braid, among others.

In Ender’s Game, for example, characters simply experience a slower passage of time while traveling, and the regular world progresses as normal. This means they can't change the past, or influence other characters to make time-altering decisions. This is a far cry from Back to the Future, in which teen Marty McFly nearly prevents his own birth by interfering in his parents' romance.

Get up to speed with the trippiness by watching the Minute Physics video below.

[h/t Futurism]

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Orson Welles: Carl Van Vechten, Wikimedia Commons // Public Domain. H.G. Wells: Keystone, Getty Images.
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History
When Orson Welles Met H.G. Wells: Two Years After The War of the Worlds Panic, the Two Icons Finally Met
Portraits of Orson Welles and H.G. Wells.
Portraits of Orson Welles and H.G. Wells.
Orson Welles: Carl Van Vechten, Wikimedia Commons // Public Domain. H.G. Wells: Keystone, Getty Images.

Two years after narrating an adaptation of H.G. Wells's 1898 novel The War of the Worlds on the radio—and purportedly causing some listeners to panic, thinking that Martians were invading Earth—Orson Welles came face to face with the British author. Coincidentally, the two men were in San Antonio, Texas for separate speaking engagements, and radio station KTSA arranged for an on-air chat on October 28, 1940.

Welles, who was just 25 years old at the time, had a friendly conversation with the 74-year-old Wells, who expressed his delight at meeting "my little namesake, Orson," and joked that Welles should drop the extra "e" in his name. They touch on the author's visit to the United States, listeners' reaction to the radio show, Adolf Hitler, and Welles's next project, Citizen Kane.

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CCAC North Library, Flickr // CC BY-NC 2.0
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literature
16 Surprising Facts About Ray Bradbury's Fahrenheit 451
CCAC North Library, Flickr // CC BY-NC 2.0
CCAC North Library, Flickr // CC BY-NC 2.0

For more than 60 years, Ray Bradbury's science fiction classic Fahrenheit 451 has sparked imagination, debate, and rebellion. The dystopian story of a man who burns books to prevent the dissemination of ideas—and then comes to realize the error of his choices—criticized censorship at the height of the Cold War. The novel remains full of surprises, contradictions, and misconceptions.

1. ADOLF HITLER WAS THE BOOK'S DARK INSPIRATION.

Fahrenheit 451 centers on Guy Montag, a fireman tormented by his job: Instead of putting out fires, he is expected to burn books to keep them out of the hands of the public. In an interview with the National Endowment for the Arts, Bradbury explained how he came up with this concept:

"Well, Hitler, of course. When I was 15, he burned the books in the streets of Berlin. Then along the way I learned about the libraries in Alexandria burning 5000 years ago. That grieved my soul. Since I'm self-educated, that means my educators—the libraries—are in danger. And if it could happen in Alexandria, if it could happen in Berlin, maybe it could happen somewhere up ahead, and my heroes would be killed."

2. THE NOVEL'S TITLE IS MISLEADING.

A popular tagline for the book is "the temperature at which book-paper catches fire, and burns." But 451°F actually refers the auto-ignition point of paper, meaning the temperature at which paper will burn if not exposed to an external flame, like that from Montag's flamethrower. Books can, however, ignite at temperatures between the 440s and 480s, depending the density and type of paper.

3. THE NOVEL WAS ADAPTED FROM BRADBURY'S SHORT STORY "THE FIREMAN."

In 1950, Bradbury published his first book, a collection of short stories called The Martian Chronicles. The following year, he wrote "The Fireman," which was published in Galaxy magazine in 1951. From there, Bradbury would expand the tale to create Fahrenheit 451.

4. BRADBURY DID NOT WRITE FAHRENHEIT 451 IN NINE DAYS.

Author Ray Bradbury signs his new book Bradbury: An Illustrated Life at Barnes & Noble
Jon Kopaloff/Getty Images

A popular apocryphal story is that Bradbury hammered out Fahrenheit 451 in just over a week. That story is wrong: It was the 25,000-word "The Fireman" that he wrote in that time period. The author would later refer to the short story as "the first version" of the eventual novel. But over the years, he would often speak about "The Fireman" and Fahrenheit 451 interchangeably, which has caused some confusion.

5. HE WROTE HIS FIRST VERSION ON A RENTED TYPEWRITER IN A LIBRARY BASEMENT.

Bradbury and wife Marguerite McClure had two children in 1950 and 1951, and he was in need of a quiet place to write but had no money for renting an office. In a 2005 interview, Bradbury said:

"I was wandering around the UCLA library and discovered there was a typing room where you could rent a typewriter for 10 cents a half-hour. So I went and got a bag of dimes. The novel began that day, and nine days later it was finished. But my God, what a place to write that book! I ran up and down stairs and grabbed books off the shelf to find any kind of quote and ran back down and put it in the novel. The book wrote itself in nine days, because the library told me to do it."

6. HE SPENT $9.80 ON TYPEWRITER RENTAL.

Bradbury's nine days in the library cost him, by his own estimate, just under $10. That means he spent about 49 hours writing "The Fireman."

7. THE BOOK IS VIEWED AS A CRITICISM OF McCARTHYISM.

Fahrenheit 451 was published on October 19, 1953 in the midst of the Second Red Scare, an era from the late 1940s to the end of the 1950s characterized by political and cultural paranoia. Many Americans feared Communist infiltration of their values and communities. Because of the context of its publication, some critics have interpreted Montag's story as a challenge to the censorship and conformity that U.S. Senator Joseph McCarthy's witch hunt sparked.

8. BRADBURY WAS REALLY WRITING ABOUT THE DANGERS OF TELEVISION.

Ray Bradbury
Evening Standard/Getty Images

Bradbury feared TV would be the death of reading—and perhaps extinguish a crucial part of our collective humanity. "Television gives you the dates of Napoleon," Bradbury lamented, "but not who he was." He also said TV is "mostly trash."

9. BRADBURY'S BIAS TOWARD READING DIDN'T KEEP HIM AWAY FROM TV.

Not only has the prolific author of more than 600 works allowed his short stories and novels to be adapted for TV, but also he's written teleplays for Alfred Hitchcock Presents, The Twilight Zone, and his own anthology series The Ray Bradbury Theater, which ran for six seasons between 1985 and 1992. For his efforts, Bradbury won a string of honors, including the CableAce award for best dramatic series (The Ray Bradbury Theater), an Emmy for The Halloween Tree, and a lifetime achievement honor from the Bram Stoker Awards.

10. FRANÇOIS TRUFFAUT'S MOVIE ADAPTATION MADE A BIG CHANGE TO THE STORY.

Clarisse, the teenage girl who befriends Montag, is unceremoniously killed in a hit-and-run accident in the novel. In the movie, she survives. Far from being put off by this alteration, Bradbury liked it. When he adapted the novel into a stage show, he took a cue from the movie and let Clarisse live.

11. FAHRENHEIT 451 HAS BEEN ADAPTED FOR OTHER MEDIA.

Aside from Truffaut's film and Bradbury's play, the novel has also been reconceived as a BBC radio drama, a video game, a graphic novel, and a 2018 movie starring Michael B. Jordan and Michael Shannon.

12. BRADBURY CONSIDERED FAHRENHEIT 451 HIS ONLY WORK OF SCIENCE FICTION.

Though he is regarded as a master of the science fiction genre, Bradbury viewed the rest of his work as fantasy. He once explained, "I don't write science fiction. I've only done one science fiction book and that's Fahrenheit 451, based on reality. Science fiction is a depiction of the real. Fantasy is a depiction of the unreal. So Martian Chronicles is not science fiction, it's fantasy. It couldn't happen, you see?"

13. FAHRENHEIT 451 IMAGINED EARBUDS.

When the novel came out, headphones were large and cumbersome things. But Bradbury imagined "the little Seashells, the thimble radios," which rested in the ear canal, and played music to Montag's sleeping wife. These "seashells" went from science fiction to science fact in 2001, when Apple designer Jonathan Ive debuted earbuds.

Still, "predicting" wasn't something Bradbury was interested in. "I've tried not to predict, but to protect and to prevent," he said of Fahrenheit 451. "If I can convince people to stop doing what they're doing and go to the library and be sensible, without pontificating and without being self-conscious, that's fine. I can teach people to really know they're alive."

14. FOR YEARS, BRADBURY REFUSED TO LET FARHRENHEIT 451 BE PUBLISHED AS AN E-BOOK.

Fahrenheit 451 e-book on the Kindle
Richard Unten, Flickr // CC BY 2.0

As the novel makes clear, Bradbury treasured the printed word. When asked in 2009 if he'd allow an e-book version of Fahrenheit 451, the author responded to the would-be publishers, "To hell with you and to hell with the internet. It's distracting. It's meaningless; it's not real. It's in the air somewhere."

He went on to declare e-books "smell like burned fuel." But in 2011, 91-year-old Bradbury gave in when Simon & Schuster offered him a seven-figure publishing deal, in which the rights to publish an e-book version were integral. However, Bradbury did win an important concession: Simon & Schuster agreed to make the e-book available for free downloads at public libraries.

15. BRADBURY KNEW WHAT HE WOULD DO IF HE LIVED IN FAHRENHEIT 451'S DYSTOPIA.

In the book, there is an underground band of rebels who attempt to preserve the written word by memorizing great works of literature. Asked which book he'd commit to memory in such a circumstance, Bradbury answered, "It would be A Christmas Carol. I think that book has influenced my life more than almost any other book, because it's a book about life, it's a book about death. It's a book about triumph."

16. FAHRENHEIT 451 IS BRADBURY'S MOST POPULAR NOVEL.

It's sold more than 10 million copies, earned critical acclaim, and is considered one of the major novels of the 20th century. Fahrenheit 451 has won several awards, including the American Academy of Arts and Letters Award in Literature, a Prometheus "Hall of Fame" Award, and a Hugo Award. And Bradbury earned a Grammy nomination in the spoken word category for the 1976 audiobook, which he performed himself.

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