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What 11 Pairs of Eyeballs Watching a Movie Looks Like

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This is not only really cool, but it has striking implications for makers of film and TV. Using a technology called Eyelink, which uses an infrared camera to track the movement of a viewer’s pupil once every millisecond, film theorists analyzed how a test group of eleven viewers watched scenes from various films. The results revealed some very interesting bits of data: first, just how quickly our eyes move around the screen, even while we’re watching a scene that’s fairly static — about once every 1/3rd second. Another interesting finding was just how synchronized the roving gaze of eleven viewers actually was — in a phenomenon they call attentional synchrony, something about movement in a scene leads to all viewers looking at the same place on the screen at the same time.

They use the following scene from There Will Be Blood as an example. There are only a few cuts; it’s mostly long master takes, which makes it easy to see how changes in the scene itself, rather than edits, re-direct viewers’ attention. It’s hypnotizing and slightly surreal to watch a scene along with the eyeballs of eleven other people.

There Will Be Blood with gaze locations of 11 viewers from TheDIEMProject on Vimeo.

So what can we take away from all this? If you happen to be a filmmaker, plenty: mainly that there are lots of effective and satisfying ways to direct and manipulate the gaze of an audience member other than close-ups, reverse shots, etc. You can do all of that in a single shot, by moving the actors rather than the camera. David Bordwell analyzes the attentional synchrony of the scene beat-by-beat in this article, but here’s the takeaway:

Viewers’ gazes are attracted by the sudden appearance of objects, moving hands, heads, and bodies. The greater the motion contrast between the point of motion and the static background, the more likely viewers will look at it. If there is only one point of motion at a particular moment, then all viewers will look at the motion, creating attentional synchrony.

By minimising background distractions and staging the scene in a clear sequential manner using basic principles of visual attention, P. T. Anderson has created a scene which commands viewer attention as precisely as a rapidly edited sequence of close-up shots. The benefit of using a single long shot is the illusion of volition. Viewers think they are free to look where they want but, due to the subtle influence of the director and actors, where they want to look is also where the director wants them to look. A single static long shot also creates a sense of space, clear relationship between the characters, and a calm, slow pace which is critical for the rest of the film. The same scene edited into close-ups would have left the viewer with a completely different interpretation of the scene.

And that’s today’s lesson in film directing 101!

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Animals
Why Tiny 'Hedgehog Highways' Are Popping Up Around London
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Hedgehogs as pets have gained popularity in recent years, but in many parts of the world, they're still wild animals. That includes London, where close to a million of the creatures roam streets, parks, and gardens, seeking out wood and vegetation to take refuge in. Now, Atlas Obscura reports that animal activists are transforming the city into a more hospitable environment for hedgehogs.

Barnes Hedgehogs, a group founded by Michel Birkenwald in the London neighborhood of Barnes four years ago, is responsible for drilling tiny "hedgehog highways" through walls around London. The passages are just wide enough for the animals to climb through, making it easier for them to travel from one green space to the next.

London's wild hedgehog population has seen a sharp decline in recent decades. Though it's hard to pin down accurate numbers for the elusive animals, surveys have shown that the British population has dwindled by tens of millions since the 1950s. This is due to factors like human development and habitat destruction by farmers who aren't fond of the unattractive shrubs, hedges, and dead wood that hedgehogs use as their homes.

When such environments are left to grow, they can still be hard for hedgehogs to access. Carving hedgehog highways through the stone partitions and wooden fences bordering parks and gardens is one way Barnes Hedgehogs is making life in the big city a little easier for its most prickly residents.

[h/t Atlas Obscura]

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Big Questions
Where Should You Place the Apostrophe in President's Day?
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Happy Presidents’ Day! Or is it President’s Day? Or Presidents Day? What you call the national holiday depends on where you are, who you’re honoring, and how you think we’re celebrating.

Saying "President’s Day" infers that the day belongs to a singular president, such as George Washington or Abraham Lincoln, whose birthdays are the basis for the holiday. On the other hand, referring to it as "Presidents’ Day" means that the day belongs to all of the presidents—that it’s their day collectively. Finally, calling the day "Presidents Day"—plural with no apostrophe—would indicate that we’re honoring all POTUSes past and present (yes, even Andrew Johnson), but that no one president actually owns the day.

You would think that in the nearly 140 years since "Washington’s Birthday" was declared a holiday in 1879, someone would have officially declared a way to spell the day. But in fact, even the White House itself hasn’t chosen a single variation for its style guide. They spelled it “President’s Day” here and “Presidents’ Day” here.


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Maybe that indecision comes from the fact that Presidents Day isn’t even a federal holiday. The federal holiday is technically still called “Washington’s Birthday,” and states can choose to call it whatever they want. Some states, like Iowa, don’t officially acknowledge the day at all. And the location of the punctuation mark is a moot point when individual states choose to call it something else entirely, like “George Washington’s Birthday and Daisy Gatson Bates Day” in Arkansas, or “Birthdays of George Washington/Thomas Jefferson” in Alabama. (Alabama loves to split birthday celebrations, by the way; the third Monday in January celebrates both Martin Luther King, Jr., and Robert E. Lee.)

You can look to official grammar sources to declare the right way, but even they don’t agree. The AP Stylebook prefers “Presidents Day,” while Chicago Style uses “Presidents’ Day.”

The bottom line: There’s no rhyme or reason to any of it. Go with what feels right. And even then, if you’re in one of those states that has chosen to spell it “President’s Day”—Washington, for example—and you use one of the grammar book stylings instead, you’re still technically wrong.

Have you got a Big Question you'd like us to answer? If so, let us know by emailing us at bigquestions@mentalfloss.com.

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