Author Archives: Attention to the Unseen

Astronomers detect the most distant galaxy ever found

EGS8p7

Phys.org reports: A team of Caltech researchers that has spent years searching for the earliest objects in the universe now reports the detection of what may be the most distant galaxy ever found. In an article published August 28, 2015 in Astrophysical Journal Letters, Adi Zitrin, a NASA Hubble postdoctoral scholar in astronomy, and Richard Ellis — who recently retired after 15 years on the Caltech faculty and is now a professor of astrophysics at University College, London — describe evidence for a galaxy called EGS8p7 that is more than 13.2 billion years old. The universe itself is about 13.8 billion years old. [Continue reading…]

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Oliver Sacks, casting light on the interconnectedness of life

Michiko Kakutani writes: It’s no coincidence that so many of the qualities that made Oliver Sacks such a brilliant writer are the same qualities that made him an ideal doctor: keen powers of observation and a devotion to detail, deep reservoirs of sympathy, and an intuitive understanding of the fathomless mysteries of the human brain and the intricate connections between the body and the mind.

Dr. Sacks, who died on Sunday at 82, was a polymath and an ardent humanist, and whether he was writing about his patients, or his love of chemistry or the power of music, he leapfrogged among disciplines, shedding light on the strange and wonderful interconnectedness of life — the connections between science and art, physiology and psychology, the beauty and economy of the natural world and the magic of the human imagination.

In his writings, as he once said of his mentor, the great Soviet neuropsychologist and author A. R. Luria, “science became poetry.” [Continue reading…]

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A conversation with Koko the gorilla

Roc Morin writes: One of the first words that Koko used to describe herself was Queen. The gorilla was only a few years old when she first made the gesture — sweeping a paw diagonally across her chest as if tracing a royal sash.

“It was a sign we almost never used!” Koko’s head-caretaker Francine Patterson laughed. “Koko understands that she’s special because of all the attention she’s had from professors, and caregivers, and the media.”

The cause of the primate’s celebrity is her extraordinary aptitude for language. Over the past 43 years, since Patterson began teaching Koko at the age of 1, the gorilla has learned more than 1,000 words of modified American Sign Language—a vocabulary comparable to that of a 3-year-old human child. While there have been many attempts to teach human languages to animals, none have been more successful than Patterson’s achievement with Koko.

If Koko is a queen, then her kingdom is a sprawling research facility in the mountains outside Santa Cruz, California. It was there, under a canopy of stately redwoods, that I met research-assistant Lisa Holliday.

“You came on a good day,” Holliday smiled. “Koko’s in a good mood. She was playing the spoon game all morning! That’s when she takes the spoon and runs off with it so you can’t give her another bite. She’s an active girl. She’s always got her dolls, and in the afternoon, her kittens — or as we call them, her kids.”

It was a winding stroll up a sun-spangled trail toward the cabin where Patterson was busy preparing a lunch of diced apples and nuts for Koko. The gorilla’s two kitten playmates romped in a crate by her feet. We would go deliver the meal together shortly, but first I had some questions for the 68-year-old researcher. I wanted to understand more about her famous charge and the rest of our closest living relatives. [Continue reading…]

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Over half of psychology studies fail reproducibility test

Nature reports: Don’t trust everything you read in the psychology literature. In fact, two thirds of it should probably be distrusted.

In the biggest project of its kind, Brian Nosek, a social psychologist and head of the Center for Open Science in Charlottesville, Virginia, and 269 co-authors repeated work reported in 98 original papers from three psychology journals, to see if they independently came up with the same results.

The studies they took on ranged from whether expressing insecurities perpetuates them to differences in how children and adults respond to fear stimuli, to effective ways to teach arithmetic. [Continue reading…]

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European imperialism grew out of a hunger for pepper

Stephen Kinzer writes: As Europe began awakening into the modern age, people were eager for new sensations. The arrival of exotic spices dazzled them. Pepper is the reason modern imperialism was invented.

For generations after their founding in the early 17th century, two powerful mercantile forces dominated much of the world: the East India Company, based in London, and the Dutch East India Company, based in Amsterdam. They were richer and had greater reach than any government — complete with armies, navies, merchant fleets, fortified ports, plantations, court systems, prisons, currencies, and treaty-making rights. With this authority, granted by the British and Dutch governments, they captured far-flung territories and sowed seeds of conflict in vast areas east of Suez.

Both of these companies were founded to bring pepper to Europe. The first islands they subdued, the Moluccas, are now part of Indonesia but were long known in the West as the Spice Islands. It is a wonderful example of how food can become the lens through which we see foreign lands. Europeans went mad for pepper and other spices. That meant ships had to be sent halfway around the world to claim land and suppress unruly natives. [Continue reading…]

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The search for ‘dark matter’ and ‘dark energy’ just got interesting

By Ryan Wilkinson, Durham University

Only about 5% of the universe consists of ordinary matter such as protons and electrons, with the rest being filled with mysterious substances known as dark matter and dark energy. So far, scientists have failed to detect these elusive materials, despite spending decades searching for them. But now, two new studies may be able to turn things around as they have narrowed down the search significantly.

Dark matter was first proposed more than 70 years ago to explain why the force of gravity in galaxy clusters is so much stronger than expected. If the clusters contained only the stars and gas we observe, their gravity should be much weaker, leading scientists to assume there is some sort of matter hidden there that we can’t see. Such dark matter would provide additional mass to these large structures, increasing their gravitational pull. The main contender for the substance is a type of hypothetical particle known as a “weakly interacting massive particle” (WIMP).

To probe the nature of dark matter, physicists look for evidence of its interactions beyond gravity. If the WIMP hypothesis is correct, dark matter particles could be detected through their scattering off atomic nuclei or electrons on Earth. In such “direct” detection experiments, a WIMP collision would cause these charged particles to recoil, producing light that we can observe.

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