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kottke.org posts about science

Video demonstration and explanation of the Kaye

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.

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.)

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


Because of the bulge in the earth

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

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

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

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

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

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

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

Michael Pollan has some good advice for writing about nature and science. “So choose your first person deliberately. Too many newspaper first persons โ€” and a lot of magazine first persons too โ€” 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

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

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.


Related to the men look at crotches

Related to the men look at crotches post, here’s an eyetracking study that compares how artists look at a photo with the rest of us. “Non-artists spent significantly more time looking at [human bodies and faces in the photos] than artists.” (via snarkmarket)


17-year-old Mary Masterman built a spectrograph at

17-year-old Mary Masterman built a spectrograph at home for $300, thousands of dollars less than they usually cost, earning her the top prize in the Intel Science Talent Search. Interestingly, 6 of the top 10 winners were women.


Men look at crotches

Among the many interesting things in Online Journalism Review’s article about using eyetracking to increase the effectiveness of news article design is this odd result:

Always look crotch

Although both men and women look at the image of George Brett when directed to find out information about his sport and position, men tend to focus on private anatomy as well as the face. For the women, the face is the only place they viewed. Coyne adds that this difference doesn’t just occur with images of people. Men tend to fixate more on areas of private anatomy on animals as well, as evidenced when users were directed to browse the American Kennel Club site.

That is absolutely fascinating. I’d love to hear an evolutionary biologist’s take on why that is.

I’m also heartened by the article’s first featured finding: that tighter writing, more white space, and jettisoning unnecessary imagery helps readers read faster and retain more of what they’ve read.


New research on laughter is showing that “

New research on laughter is showing that “It’s an instinctual survival tool for social animals, not an intellectual response to wit. Itss not about getting the joke. It’s about getting along. It’s a way to make friends and also make clear who belongs where in the status hierarchy.”


Daniel Coyle travels to Russia’s top tennis

Daniel Coyle travels to Russia’s top tennis player factory in search of how to grow a super-athlete. “Deliberate practice means working on technique, seeking constant critical feedback and focusing ruthlessly on improving weaknesses.” The article starts off a bit slow but gets interesting a few paragraphs in.


A man outfitted his family minivan with

A man outfitted his family minivan with high-precision cesium clocks to demonstrate to his kids that they gained 22 nanoseconds of vacation time on their mountain camping trip than they would have at a lower altitude.


Remembering a physics conference that took place

Remembering a physics conference that took place in NYC 20 years ago about high-temperature superconductors. One session, the “Woodstock of Physics”, lasted until 3:15 in the morning; “it was like the Texas chili cook-off or the Iowa State Fair apple pie bake-off.” The conference was such a big deal at the time that physicists with conference badges were immediately ushered into a nightclub in Chelsea for free by the bouncers.


Why do we believe in God?

The cover story in this week’s NY Times Magazine is called Darwin’s God and covers, from an evolutionary biology standpoint, why people believe in God. Most scientists studying the matter believe that humans have a built-in mechanism for religious belief. For instance, anthropologist Scott Atran sometimes conducts an intriguing experiment with his students:

His research interests include cognitive science and evolutionary biology, and sometimes he presents students with a wooden box that he pretends is an African relic. “If you have negative sentiments toward religion,” he tells them, “the box will destroy whatever you put inside it.” Many of his students say they doubt the existence of God, but in this demonstration they act as if they believe in something. Put your pencil into the magic box, he tells them, and the nonbelievers do so blithely. Put in your driver’s license, he says, and most do, but only after significant hesitation. And when he tells them to put in their hands, few will. If they don’t believe in God, what exactly are they afraid of?

Or rather, why are they afraid? One possible reason is that humans are conditioned to be on the lookout for “agents” and we tend to find them even when they’re not there:

So if there is motion just out of our line of sight, we presume it is caused by an agent, an animal or person with the ability to move independently. This usually operates in one direction only; lots of people mistake a rock for a bear, but almost no one mistakes a bear for a rock.

What does this mean for belief in the supernatural? It means our brains are primed for it, ready to presume the presence of agents even when such presence confounds logic. “The most central concepts in religions are related to agents,” Justin Barrett, a psychologist, wrote in his 2004 summary of the byproduct theory, “Why Would Anyone Believe in God?” Religious agents are often supernatural, he wrote, “people with superpowers, statues that can answer requests or disembodied minds that can act on us and the world.”

Another reason for the instinctive religious impulse may be that people are able to put themselves in other peoples’ minds, to think about how another person might be feeling or thinking:

Folkpsychology, as Atran and his colleagues see it, is essential to getting along in the contemporary world, just as it has been since prehistoric times. It allows us to anticipate the actions of others and to lead others to believe what we want them to believe; it is at the heart of everything from marriage to office politics to poker. People without this trait, like those with severe autism, are impaired, unable to imagine themselves in other people’s heads.

The process begins with positing the existence of minds, our own and others’, that we cannot see or feel. This leaves us open, almost instinctively, to belief in the separation of the body (the visible) and the mind (the invisible). If you can posit minds in other people that you cannot verify empirically, suggests Paul Bloom, a psychologist and the author of “Descartes’ Baby,” published in 2004, it is a short step to positing minds that do not have to be anchored to a body. And from there, he said, it is another short step to positing an immaterial soul and a transcendent God.

There’s lots more in the article…it’s well worth a read.


Three computer scientists from Israel have developed

Three computer scientists from Israel have developed a software program called Beauty Function. The program scans a human face and then produces an image of “a slightly more beautiful you”. Here are some of the program’s results. (via mr)


Regarding Susan Orlean’s piece on Robert Lang

Regarding Susan Orlean’s piece on Robert Lang and origami from a couple of weeks ago, the New Yorker has posted a 5-minute audio slideshow of Orlean talking about the piece.


Clovis theory in doubt

Some recent rigorous radiocarbon dating has thrown into doubt the theory that the Americas were first settled 11,000 years ago by the so-called Clovis peoples.


Honeybee populations across the US are falling

Honeybee populations across the US are falling due to a mysterious disease. “Almond crops are immediately vulnerable because they rely on honeybee pollination at this time of year. And the insect decline could potentially affect other crops later in the year, such as apples and blueberries.”


The Order of the Science Scouts of

The Order of the Science Scouts of Exemplary Repute and Above Average Physique has some neat merit badges, including the “I’ve been published at the New Yorker” badge, the “my degree inadvertently makes me competent in fixing household appliances” badge, and the “I’ve done science with no concievable practical application” badge.


“A six-year Greek study found that those

A six-year Greek study found that those who took a 30-minute siesta at least three times a week had a 37% lower risk of heart-related death.” Among working men, the risk was reduced by 64%. Naps all around!


How to report scientific research to a general audience.

How to report scientific research to a general audience.


David Shenk is writing a book about

David Shenk is writing a book about genius, specifically “how science is unveiling a rich new understanding of talent, ‘giftedness,’ and brilliance โ€” and the lessons we can all apply to our own lives”, and he’s using a blog to help him while he researches and writes it.