The Logic of Time Travel Can Get Pretty Trippy

iStock
iStock

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]

The ChopBox Smart Cutting Board Has a Food Scale, Timer, and Knife Sharper Built Right Into It

ChopBox
ChopBox

When it comes to furnishing your kitchen with all of the appliances necessary to cook night in and night out, you’ll probably find yourself running out of counter space in a hurry. The ChopBox, which is available on Indiegogo and dubs itself “The World’s First Smart Cutting Board,” looks to fix that by cramming a bunch of kitchen necessities right into one cutting board.

In addition to giving you a knife-resistant bamboo surface to slice and dice on, the ChopBox features a built-in digital scale that weighs up to 6.6 pounds of food, a nine-hour kitchen timer, and two knife sharpeners. It also sports a groove on its surface to catch any liquid runoff that may be produced by the food and has a second pull-out cutting board that doubles as a serving tray.

There’s a 254nm UVC light featured on the board, which the company says “is guaranteed to kill 99.99% of germs and bacteria" after a minute of exposure. If you’re more of a traditionalist when it comes to cleanliness, the ChopBox is completely waterproof (but not dishwasher-safe) so you can wash and scrub to your heart’s content without worry. 

According to the company, a single one-hour charge will give you 30 days of battery life, and can be recharged through a Micro USB port.

The ChopBox reached its $10,000 crowdfunding goal just 10 minutes after launching its campaign, but you can still contribute at different tiers. Once it’s officially released, the ChopBox will retail for $200, but you can get one for $100 if you pledge now. You can purchase the ChopBox on Indiegogo here.

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Mark Hamill Learned About The Empire Strikes Back's Big Darth Vader Reveal Before Anyone Else

Nope, not even Harrison Ford knew about it.
Nope, not even Harrison Ford knew about it.
Michael Tran/Getty Images

Few cinematic secrets were better kept—or more shocking when they came out—than that of Luke Skywalker and Leia Organa's true parentage in the Star Wars saga. According to ComicBook.com, the reveal that Darth Vader is Luke and Leia's father was such a well-kept secret that it wasn't actually put into the script at all. Evidently, only three people on set knew about the moment in advance: Mark Hamill, Star Wars creator George Lucas, and The Empire Strikes Back director Irvin Kershner. (Screenwriter Lawrence Kasdan was also aware.)

Hamill took to Twitter to explain the pivotal part of the franchise, during which a fake line was used so the actual reveal could be dubbed in afterwards, allowing the trio to keep the secret from the cast and crew for more than a year.

"The cast & crew first learned of it when they saw the finished film," Hamill said to his fans on Twitter. "When we shot it, Vader's line was 'You don't know the truth, Obi-Wan killed your father.' Only Irvin Kershner, George Lucas & I knew what would be dubbed in later. Agony keeping that secret for over a year!"

Props to them for not letting the spoiler slip early. Even with the pressure of keeping such a big plot twist under wraps, Lucas says financial concerns were what plagued him most.

“Well, to be very honest, the most challenging aspect was paying for [The Empire Strikes Back],” Lucas recently told StarWars.com. “In order to be able to take control of the movie, I had to pay for it myself. And in order to do that, I did something my father told me never to do, which was to borrow money. But there wasn’t much I could do because I only had maybe half of the money to make the movie, so I had to borrow the other half, which put a lot of pressure on me.”

If you feel like reminiscing about a galaxy far, far away, check out this year's May the Fourth celebration compilation here. And if you want to see the twist for yourself (whether it's for the first or the hundredth time), all nine movies in the Skywalker Saga are now streaming on Disney+.

[h/t ComicBook.com]

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