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kottke.org posts about science

Closeup videos of the sun. The bottom one is especially mesmerizing.


Better living through self deception

Interesting article about how people tell their stories and think of their past experiences and how that influences their mood and general outlook on life.

At some level, talk therapy has always been an exercise in replaying and reinterpreting each person’s unique life story. Yet Mr. Adler found that in fact those former patients who scored highest on measures of well-being — who had recovered, by standard measures — told very similar tales about their experiences.

They described their problem, whether depression or an eating disorder, as coming on suddenly, as if out of nowhere. They characterized their difficulty as if it were an outside enemy, often giving it a name (the black dog, the walk of shame). And eventually they conquered it.

“The story is one of victorious battle: ‘I ended therapy because I could overcome this on my own,’” Mr. Adler said. Those in the study who scored lower on measures of psychological well-being were more likely to see their moods and behavior problems as a part of their own character, rather than as a villain to be defeated. To them, therapy was part of a continuing adaptation, not a decisive battle.

The article goes on to describe the benefits of thinking about past events in the third person rather than in the first person:

In a 2005 study reported in the journal Psychological Science, researchers at Columbia University measured how student participants reacted to a bad memory, whether an argument or failed exam, when it was recalled in the third person. They tested levels of conscious and unconscious hostility after the recollections, using both standard questionnaires and students’ essays. The investigators found that the third-person scenes were significantly less upsetting, compared with bad memories recalled in the first person.

“What our experiment showed is that this shift in perspective, having this distance from yourself, allows you to relive the experience and focus on why you’re feeling upset,” instead of being immersed in it, said Ethan Kross, the study’s lead author. The emotional content of the memory is still felt, he said, but its sting is blunted as the brain frames its meaning, as it builds the story.

But things like eating disorders and mental illness aren’t external forces and thinking about a bad memory as if it happened to a third party is not the truth. The standard model of the happy, smart, successful human being is someone who knows more, works hard, and has found, or at least is heading toward, their own personal meaning of life. But often that’s not the case. Self-deceit (or otherwise willfully forgetting seemingly pertinent information) seems to be important to human growth.

Consider the recent findings by a group at Harvard about the effects of mindset on physical fitness:

The researchers studied 84 female housekeepers from seven hotels. Women in 4 hotels were told that their regular work was enough exercise to meet the requirements for a healthy, active lifestyle, whereas the women in the other three hotels were told nothing. To determine if the placebo effect plays a role in the benefits of exercise, the researchers investigated whether subjects’ mind-set (in this case, their perceived levels of exercise) could inhibit or enhance the health benefits of exercise independent of any actual exercise.

Four weeks later, the researchers returned to assess any changes in the women’s health. They found that the women in the informed group had lost an average of 2 pounds, lowered their blood pressure by almost 10 percent, and were significantly healthier as measured by body-fat percentage, body mass index, and waist-to-hip ratio. These changes were significantly higher than those reported in the control group and were especially remarkable given the time period of only four weeks.

Just by thinking they were exercising, these women gained extra benefit from their usual routines. The idea of thinking about oneself reminded me of Allen Iverson’s training routine, which utilizes a technique called psychocybernetics:

“Let me tell you about Allen’s workouts,” says Terry Royster, his bodyguard from 1997 until early 2002. “All the time I have been with him, I never seen him lift a weight or stand there and shoot jumper after jumper. Instead, we’ll be on our way to the game and he’ll be quiet as hell. Finally, he’ll say, ‘You know now I usually cross my man over and take it into the lane and pull up? Well, tonight I’m gonna cross him over and then take a step back and fade away. I’m gonna kill ‘em with it all night long.’ And damned if he didn’t do just that. See, that’s his workout, when he’s just sitting there, thinking. That’s him working on his game.”

What Iverson is doing is tricking his conscious self into thinking that he’s done something that he hasn’t, that he’s practiced a move or shot 100 perfect free throws in a row. I think, therefore I slam. (I wonder if Iverson pictures himself in the first or third person in his visualizations.)

Carol Dweck’s research looks at the difference between thinking of talent or ability as innate as opposed to something that can be developed:

At the time, the suggested cure for learned helplessness was a long string of successes. Dweck posited that the difference between the helpless response and its opposite — the determination to master new things and surmount challenges — lay in people’s beliefs about why they had failed. People who attributed their failures to lack of ability, Dweck thought, would become discouraged even in areas where they were capable. Those who thought they simply hadn’t tried hard enough, on the other hand, would be fueled by setbacks.

For some people, the facade they’ve created for themselves can come crashing down suddenly, as with stage fright:

He describes the sense of acute self-consciousness and loss of confidence that followed as “stage dread,” a sort of “paradigm shift.” He says, “It’s not ‘Look at me - I’m flying.’ It’s ‘Look at me - I might fall.’ It would be like playing a game of chess where you’re constantly regretting the moves you’ve already played rather than looking at the ones you’re going to play.” Fry could not mobilize his defenses; unable to shore himself up, he took himself away.

In a slightly different but still related vein, Gerd Gigerenzer’s research indicates that ignoring information is how smart decisions are made:

In order to make good decisions in an uncertain world, one sometimes has to ignore information. The art is knowing what one doesn’t have to know.

Research done by Edward Vogel at the University of Oregon shows the capacity of a person’s visual working memory “depends on your ability to filter out irrelevant information”:

“Until now, it’s been assumed that people with high capacity visual working memory had greater storage but actually, it’s about the bouncer - a neural mechanism that controls what information gets into awareness,” Vogel said.

And data from another study indicates that perhaps one of the things that the brain does best is forgetting (“motivated (voluntary) forgetting”, in the words of one researcher):

The findings suggest that despite the brain’s astonishing ability to archive a lifetime of memories, one of its prime functions is, paradoxically, to forget. Our sensory organs continually deluge us with information, some of it unpleasant. We wouldn’t get through the day — or through life — if we didn’t repress much of it.

Perhaps the way to true personal acheivement and happiness is through lying to yourself instead of being honest, loafing instead of practicing, and purposely forgetting information. There are plenty of self-help books on the market…where are the self-hurt books?


How to survive a black hole. If you’re in a rocket ship about to fall into a black hole, you might live a bit longer if you turn on your engines. “But in general a person falling past the horizon won’t have zero velocity to begin with. Then the situation is different — in fact it’s worse. So firing the rocket for a short time can push the astronaut back on to the best-case scenario: the trajectory followed by free fall from rest.”


Scientists confirm what every TV news network, conservative radio commentator, and blogger already knows: “Repeated exposure to one person’s viewpoint can have almost as much influence as exposure to shared opinions from multiple people. This finding shows that hearing an opinion multiple times increases the recipient’s sense of familiarity and in some cases gives a listener a false sense that an opinion is more widespread then it actually is.” (via snarkmarket)


A pair of articles on the Large Hadron Collider at CERN: A Giant Takes On Physics’ Biggest Questions and Crash Course. The LHC will hopefully provide the 1.21 gigawatts 7 trillion electron volts needed to uncover the Higgs boson, aka, The God Particle. “What we want is to reduce the world to objects that have no structure, that are points, that are as simple as we can imagine. And then build it up from there again.”


Room ceiling heights affect how people think. “

Room ceiling heights affect how people think. “When a person is in a space with a 10-foot ceiling, they will tend to think more freely, more abstractly. They might process more abstract connections between objects in a room, whereas a person in a room with an 8-foot ceiling will be more likely to focus on specifics.”


The University of Cambridge has put online almost 5000 letters to and from Charles Darwin. (via bbc news)


Global warming + evolution = species explosion!!!


A recently discovered star appears to be 13.2 billion years old, just 500 million years younger than the Big Bang.


Three of the candidates in the recent Republican presidential debate said they don’t believe in evolution: Colorado Representative Tom Tancredo, Kansas Senator Sam Brownback, and former Arkansas governor Mike Huckabee. Hard to believe that this is 2007 and not 1807. John McCain said he did believe in evolution but that “I also believe, when I hike the Grand Canyon and see it at sunset, that the hand of God is there also”.

Update: An earlier version of this post wrongly stated that Mitt Romney raised his hand when asked about disbelieving evolution…Tom Tancredo was the third person. (thx to several who wrote in about this)


While working on a particle accelerator, Anatoli Bugorski accidentally put his head into the proton stream. “The left half of Bugorski’s face swelled up beyond recognition, and over the next several days started peeling off, showing the path that the proton beam (moving near the speed of light) had burned through parts of his face, his bone, and the brain tissue underneath.” Some photos here. (via cyn-c)


The NY Times has an excerpt of the first chapter of The Black Swan by Nassim Taleb. Accompanying the excerpt is a review by Gregg Easterbrook. “History, he writes, proceeds by ‘jumps,’ controlled by ‘the tyranny of the singular, the accidental, the unseen and the unpredicted.’” Sounds like punctuated equilibrium.


A letter from the Paleoanthropology Division of the Smithsonian Institute: “We have given this specimen a careful and detailed examination, and regret to inform you that we disagree with your theory that it represents ‘conclusive proof of the presence of Early Man in Charleston County two million years ago.’ Rather, it appears that what you have found is the head of a Barbie doll, of the variety one of our staff, who has small children, believes to be the ‘Malibu Barbie.’”

Update: Not that there was any doubt that this isn’t a real letter, here’s the confirmation. (thx, sam & sheldon)


Humans are the animal world’s best distance runners…we can run long distances relatively fast without overheating. “Once humans start running, it only takes a bit more energy for us to run faster, Lieberman said. Other animals, on the other hand, expend a lot more energy as they speed up, particularly when they switch from a trot to a gallop, which most animals cannot maintain over long distances.” (via beebo)


I don’t know if this is the whole article or if the Discover site is just really bad at indicating that the rest of the article is for paying customers only, but either way, I want to read more on what happened to the hype about chaos theory.


Cities are often thought of as organisms or ecosystems, but the authors of a new study find that metaphor lacking. “The one thing that we know about organisms whether it be elephants or sharks or frogs, is that as they get large, they slow down. They use less energy, they don’t move as fast. That is a very important point for biological scaling. In the case of cities, it is actually the opposite. As cities get larger they create more wealth and they are more innovative at a faster rate. There is no counterpart to that in biology.”


Video demonstration and explanation of the Kaye effect. AKA, watch shampoo do weird things in slow motion.


How not to write a science book. “6. Avoid mentioning scientists or experiments. You’re a journalist, so it’s your job to explain things to people in ways they can understand. You always found science class difficult, and that class was taught by a scientist and involved experiments. Therefore no one can understand scientists and experiments.”


Microscopic auto-origami. Just add water! (And they fold right up.)


Because of the bulge in the earth at the equator, a 20,702 ft. high mountain in Ecuador is actually closer to outer space than Mt. Everest…1.5 miles closer. (via buzzfeed)


I love YouTube. This is a video clip of a chef pulling noodle dough, doubling it over 12 times until the noodles are unbelievably fine. The clip is from a 1987 PBS science show that I watched once when I was 14[1] and I’ve remembered it ever since as one of the simplest, coolest, and most concrete illustrations of mathematics I’ve ever seen. (via seriouseats)

[1] Ooh, watching science shows on PBS at 14….how popular was I in school?


There are some goldfish in Japan that live in a functioning deep fat fryer. The frying oil floats above the water where the fish live and as long as they don’t try jumping out of their layer, they’re fine. A nice side effect of this arrangement is that the fish keep the fryer clean, eating whatever food scraps fall from the fryer above. (via cyn-c)


The human eye is equivalent to a 576 megapixel camera and has a nighttime ISO of 800 (~1 during the daytime).


Rare semi-identical twins born. “They are the result of two sperm cells fertilising a single egg, which then divided to form two embryos - and each sperm contributed genes to each child.”


Researchers looking into the science of happiness have found evidence that through kindness, gratitude, and optimism exercises, a person can increase their happiness level, much like physical exercise can increase physical fitness.


The Schmidt Sting Pain Index is a measure of how painful insect stings are. The Pepsis wasp rates a 4.0 and the pain is described as “blinding, fierce, shockingly electric. A running hair drier has been dropped into your bubble bath (if you get stung by one you might as well lie down and scream).” (via that’s how it happened)


Michael Pollan has some good advice for writing about nature and science. “So choose your first person deliberately. Too many newspaper first persons — and a lot of magazine first persons too — are written in the voice of the neutral feature-writer. They’re the voice of the Journalist. That is the least interesting first person you have. Nobody cares about journalists. They’re not normal people. So choose a first person that draws on a more normal side of your personality. And think about which one will help you tell the story. You’ll see that in very subtle ways it will shape your point of view and your tone and unlock interesting things.”


Recency of history

Thoughtful post on the extreme recency of recorded human history. We know very little about the people who lived before the invention of writing and collections of stories like the Bible, save for what we can glean from speechless skeletons, footprints, and other remains.

And look at how much is lost. Between the time of the couple fleeing across a field of volcanic ash and poor dead Lucy lies 400,000 years. If a Bible is a record of the struggle of a people for 2,000 years, we’d need 200 Bibles to tell us the tale of just this one obscure, remote branch of our lineage.

(thx, alexander)


An Intelligent Designer designs a cow. “How about we give it three, no eleven, no four stomachs! Four stomachs! For the efficient eating, of the grass. I am truly inspired! Don’t stop there. How’s this? This animal should urinate milk. From its groin, no less.”


New Scientist watches Sunshine, Danny Boyle’s new movie about the death of the sun (which sounds fantastic given my love of global disaster movies), and evaluates it from a scientific perspective.