Brain Pickings

Posts Tagged ‘animation’

20 NOVEMBER, 2014

The Difference Between the Beautiful and the Sublime, Animated

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A 100-second anatomy of astonishment.

Britain’s Open University has previously given us some illuminating animated explainers of the history of the English language, the world’s major religions, philosophy’s greatest thought experiments, and the major creative movements in design. They have now partnered with BBC broadcaster and In Our Time host Melvyn Bragg on a series adapting Bragg’s BBC4 podcast A History of Ideas into short animations that synthesize some of humanity’s most influential ideas.

Among them is 18th-century Irish philosopher Edmund Burke’s exploration of the difference between the beautiful and the sublime, scrutinized in his 1757 treatise A Philosophical Enquiry into the Origin of Our Ideas of the Sublime and Beautiful (public library | IndieBound).

In one of the most powerful passages in the book, Burke describes the effect of the sublime in its highest degree — a psychic state we might, today, call awe:

The passion caused by the great and sublime in nature, when those causes operate most powerfully, is astonishment; and astonishment is that state of the soul, in which all its motions are suspended, with some degree of horror. 1 In this case the mind is so entirely filled with its object, that it cannot entertain any other, nor by consequence reason on that object which employs it. Hence arises the great power of the sublime, that, far from being produced by them, it anticipates our reasonings, and hurries us on by an irresistible force. Astonishment, as I have said, is the effect of the sublime in its highest degree; the inferior effects are admiration, reverence, and respect.

This, no doubt, is what Ptolemy meant when he beheld the heavens and what Carl Sagan felt two millennia later in encountering the cosmos.

Complement with Ursula K. Le Guin’s sublime meditation on what beauty really means, Susan Sontag on beauty vs. interestingness, and the evolutionary science of “beauty overload.”

HT Open Culture

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13 NOVEMBER, 2014

The Fluid Dynamics of “The Starry Night”: How Vincent Van Gogh’s Masterpiece Explains the Scientific Mysteries of Movement and Light

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“In a period of intense suffering, Van Gogh was somehow able to perceive and represent one of the most supremely difficult concepts nature has ever brought before mankind.”

In 1889, inspired by a famous astronomical drawing that had been circulating in Europe for four decades, Vincent van Gogh painted his iconic masterpiece “The Starry Night,” one of the most recognized and reproduced images in the history of art. At the peak of his lifelong struggle with mental illness, he created the legendary painting while staying at the mental asylum into which he had voluntarily checked himself after mutilating his own ear.

But more than a masterwork of art, Van Gogh’s painting turns out to hold astounding clues to understanding some of the most mysterious workings of science.

This fascinating short animation from TED-Ed and Natalya St. Clair, author of The Art of Mental Calculation, explores how “The Starry Night” sheds light on the concept of turbulent flow in fluid dynamics, one of the most complex ideas to explain mathematically and among the hardest for the human mind to grasp. From why the brain’s perception of light and motion makes us see Impressionist works as flickering, to how a Russian mathematician’s theory explains Jupiter’s bright red spot, to what the Hubble Space Telescope has to do with Van Gogh’s psychotic episodes, this mind-bending tour de force ties art, science, and mental health together through the astonishing interplay between physical and psychic turbulence.

Van Gogh and other Impressionists represented light in a different way than their predecessors, seeming to capture its motion, for instance, across sun-dappled waters, or here in star light that twinkles and melts through milky waves of blue night sky.

The effect is caused my luminance, the intensity of the light in the colors on the canvas. The more primitive part of our visual cortex — which sees light contrast and motion, but not color — will blend two differently colored areas together if they have the same luminance. But our brains primate subdivision will see the contrasting colors without blending. With these two interpretations happening at once, the light in many Impressionist works seems to pulse, flicker and radiate oddly.

That’s how this and other Impressionist works use quickly executed prominent brushstrokes to capture something strikingly real about how light moves.

Sixty years later, Russian mathematician Andrey Kolmogorov furthered our mathematical understanding of turbulence when he proposed that energy in a turbulent fluid at length R varies in proportion to the five-thirds power of R. Experimental measurements show Kolmogorov was remarkably close to the way turbulent flow works, although a complete description of turbulence remains one of the unsolved problems in physics.

A turbulent flow is self-similar if there is an energy cascade — in other words, big eddies transfer their energy to smaller eddies, which do likewise at other scales. Examples of this include Jupiter’s great red spot, cloud formations and interstellar dust particles.

In 2004, using the Hubble Space Telescope, scientists saw the eddies of a distant cloud of dust and gas around a star, and it reminded them of Van Gogh’s “Starry Night.” This motivated scientists from Mexico, Spain, and England to study the luminance in Van Gogh’s paintings in detail. They discovered that there is a distinct pattern of turbulent fluid structures close to Kolmogorov’s equation hidden in many of Van Gogh’s paintings.

The researchers digitized the paintings, and measured how brightness varies between any two pixels. From the curves measured for pixel separations, they concluded that paintings from Van Gogh’s period of psychotic agitation behave remarkably similar to fluid turbulence. His self-portrait with a pipe, from a calmer period in Van Gogh’s life, showed no sign of this correspondence. And neither did other artists’ work that seemed equally turbulent at first glance, like Munch’s ‘The Scream.”

While it’s too easy to say Van Gogh’s turbulent genius enabled him to depict turbulence, it’s also far too difficult to accurately express the rousing beauty of the fact that in a period of intense suffering, Van Gogh was somehow able to perceive and represent one of the most supremely difficult concepts nature has ever brought before mankind, and to unite his unique mind’s eye with the deepest mysteries of movement, fluid and light.

Complement with Van Gogh on art and the power of love and a peek inside his never-before-revealed sketchbooks.

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06 NOVEMBER, 2014

The Language of Lying: Animated Primer on How to Detect Deception

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The four most reliable telltale signs of the 10 to 200 lies we tell and are told each day.

Our yearning to discern deception so that we can protect ourselves from abuse, is ancient and almost primal — a marketable commodity for mystics and media manipulators alike. In one of the best explorations of the subject, Sam Harris defined lying as “both a failure of understanding and an unwillingness to be understood.” Susan Sontag wrote in her diary that “ordinary language is an accretion of lies.” But language itself, it turns out, is a remarkable lie-detector — the closest we can get to peering into another’s mind to understand motive and recognize deception.

From Noah Zandan and TED Ed comes this revelatory short animation on how to spot a liar, using communications science and linguistic text analysis to explore the four most common patterns in the subconscious language of deception.

  1. Liars reference themselves less when making deceptive statements. They write or talk more about others, often using the third person to distance and disassociate themselves from their life.
  2. Liars tend to be more negative because, on a subconscious level, they feel guilty about lying.
  3. Liars typically explain events in simple terms, since our brains struggle to build a complex lie. Judgment and evaluation are complex things for our brains to compute.
  4. Even though liars keep descriptions simple, they tend to use longer and more convoluted sentence structure, inserting unnecessary words and irrelevant but factual-sounding details in order to pad the lie.

Much of Zandan’s narrative calls to mind the work of Pamela Meyer, author of Liespotting: Proven Techniques to Detect Deception (public library), which examines truth-telling and its opposite through the trifecta of facial expression decoding, interrogation training, and behavioral psychology research. In her own 2011 TED talk, Meyer dives deeper into the tell-tale signs of lying:

On a given day, studies show that you may be lied to anywhere from 10 to 200 times.

[…]

Lying is complex. It’s woven into the fabric of our daily and our business lives. We’re deeply ambivalent about the truth. We parse it out on an as-needed basis, sometimes for very good reasons, other times just because we don’t understand the gaps in our lives… We’re against lying, but we’re covertly for it in ways that our society has sanctioned for centuries and centuries and centuries. It’s as old as breathing. It’s part of our culture, it’s part of our history. Think Dante, Shakespeare, the Bible, News of the World.

[…]

When you combine the science of recognizing deception with the art of looking, listening, you exempt yourself from collaborating in a lie. You start up that path of being just a little bit more explicit, because you signal to everyone around you, you say, “Hey, my world, our world, it’s going to be an honest one. My world is going to be one where truth is strengthened and falsehood is recognized and marginalized.” And when you do that, the ground around you starts to shift just a little bit.

In Liespotting, Meyer goes on to explore the evolutionary value of lying, the single most telling facial expression during deception, and the five-step method that most reliably flags lies in interviews, dates, negotiations, and various other interpersonal exchanges. Couple it with Sam Harris on lying then, for a complementary counterpoint, see David DeSteno’s remarkable work on the psychology of trust.

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