The Dark Time Travel Paradox At The Heart Of Back To The Future

Time travel, as presented to us by Back To The Future, is basically a good deal: You get a hoverboard! You get to teach a gang of '50s teenagers how to rock! You get to drink sodas at completely un-ironic diners! But while a DeLorean ride through time may seem all fun and games, there's a grim fact at its center. » 1/29/15 4:20pm Yesterday 4:20pm

Why Riddick Wasn't The Real Hero Of Pitch Black 

Remember Pitch Black, in which interstellar castaways battled their way off a dark planet filled with photophobic monsters? Well, while Vin Diesel's Riddick may have been the character who went on to lead the franchise, a re-watch reveals something else: The real star of the story was actually someone else entirely. » 1/28/15 4:20pm Wednesday 4:20pm

The Greatest Inventions That Everybody Forgets Exist

Quick, what are the most important technologies in the world right now? If your first thought was something like the computer or cellphone, we get it. But the fact is that a lot of the most important inventions, the ones that underpin our lives, are largely invisible. Here are some of the most life-changing ones. » 1/20/15 4:20pm 1/20/15 4:20pm

The 19th-Century Photography Trick That Changed How We See Snow

Today, it just takes a camera with a good zoom lens, patience, and a cold climate to produce stunning close-ups of snowflakes. But in the late 1800s, even the basic personal camera was a relatively new tech. So, just how did a 19th-century farmer in Vermont take these beautiful macro shots of snowflakes? » 1/07/15 4:20pm 1/07/15 4:20pm

The Funniest Words That Sound Dirty In Other Languages

Earlier today, we asked for help coming up with a word for that thing where a word is innocent in its native language, but sounds like a dirty word to foreign speakers. And not only did we come up with a word — "sordophone" — but also, a pretty impressive list of words that travelers should be careful about saying. » 1/02/15 4:12pm 1/02/15 4:12pm