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Lawrence Hrubes

Do Plants Think? | GarethCook - 0 views

garethcook.net/do-plants-think

TOK science plants biology senses thought

shared by Lawrence Hrubes on 18 Oct 13 - No Cached
  • Lawrence Hrubes on 18 Oct 13
     
    "How aware are plants? A plant can see, smell and feel. It can mount a defense when under siege, and warn its neighbors of trouble on the way. A plant can even be said to have a memory. But does this mean that plants think? "
Lawrence Hrubes

Michael Pollan: How Smart Are Plants? : The New Yorker - 0 views

www.newyorker.com/...131223fa_fact_pollan

TOK science nature plants cognition neuroscience neurobiology

shared by Lawrence Hrubes on 23 Dec 13 - No Cached
  • Lawrence Hrubes on 23 Dec 13
     
    "Plants are able to sense and optimally respond to so many environmental variables-light, water, gravity, temperature, soil structure, nutrients, toxins, microbes, herbivores, chemical signals from other plants-that there may exist some brainlike information-processing system to integrate the data and coördinate a plant's behavioral response. The authors pointed out that electrical and chemical signalling systems have been identified in plants which are homologous to those found in the nervous systems of animals."
artuscaer

Do Plants Think? - Scientific American - 0 views

www.scientificamerican.com/...-plants-think-daniel-chamovitz

TOK Americans believeeverything perception psychology Imagination plants neuroscience pseudoscience memory

shared by artuscaer on 15 Mar 15 - No Cached
  • artuscaer on 15 Mar 15
     
    A very peculiar article on something truly "out of the box" type of thinking. Can you believe it or not ?
Lawrence Hrubes

BBC - Future - How to learn like a memory champion - 1 views

www.bbc.com/...w-to-learn-like-a-memory-champ

TOK memory learning education technology brain

shared by Lawrence Hrubes on 07 Mar 14 - No Cached
  • As Cooke first set out developing his idea, he turned to his former classmate at Oxford University, Princeton neuroscientist Greg Detre, to help update his tried-and-tested techniques with the latest understanding of memory. Together, they came up with some basic principles that would guide Memrise’s progress over the following years. The first is the idea of “elaborative” learning – in which you try to give extra meaning to a fact to try to get it to stick in the mind. These “mems”, as the team call them, are particularly effective if they tickle the funny bone as well as the synapses – and so for each fact that you want to learn, you are encouraged to find an amusing image or phrase that helps plant the memory in your mind.
  • Unsurprisingly, it was the friendly competition element that captured the attention of Traynor's primary school pupils learning Spanish. “As soon as they come into the classroom, they want to see where they are on the leader board,” he says. And there are other advantages. Each lesson, Traynor tends to split the class into two – while half are doing the “spade work” on vocabulary learning on the school's iPads, he can teach the others – before the two halves switch over. By working with these smaller groups, he can then give more individual attention to each child's understanding of the grammar.Even more powerfully, Traynor recently began encouraging his class to record and upload their pronunciation of the words onto the app – which they can then share with their classmates using the course. The sound of their classmates seems to have spurred on their enthusiasm, says Traynor. “They're constantly trying to work out whose voice they're hearing,” he says. “So they're giving more attention to the different sounds. I think it's improved their speaking and listening dramatically.”Although most courses on Memrise deal with foreign languages, teachers in other subjects are also starting to bring the technology to their classroom. Simon Birch from The Broxbourne School in Hertfordshire, for instance, uses it to teach the advanced terminology needed for food technology exams, while his school’s English department are using it to drill spelling. "The benefits for literacy can't be overstated," Birch says.
markfrankel18

N.Y. Judge Grants Legal Rights To 2 Research Chimps : The Two-Way : NPR - 0 views

www.npr.org/...al-rights-to-2-research-chimps

TOK ethics animals science

shared by markfrankel18 on 21 Apr 15 - No Cached
  • A New York judge has granted two research chimps the writ of habeas corpus — a move that allows them to challenge their detention. The decision, says Science magazine, effectively recognizes chimps as legal persons, marking the first time in U.S. history that an animal has been given that right.
Lawrence Hrubes

The man who missed killing Hitler by 13 minutes - BBC News - 2 views

www.bbc.com/...magazine-32160816

history ethics

shared by Lawrence Hrubes on 05 Apr 15 - No Cached
  • On 8 November 1939, Hitler was making his annual speech at a Munich beer hall. The event commemorated early Nazi struggles in the 1920s. This time Hitler used it to mock his international enemies, and boast about Germany's successful start to the war.But what neither Hitler nor the Nazi top brass and loyal audience realised was that, a few feet away from where the Fuehrer was standing, a bomb was about to go off . Its ticking timers carefully muffled in cork casing, it had been assembled and planted secretly over many weeks by Georg Elser. He had started making his plans the previous year, after deciding that, under Hitler, "war was unavoidable".Hitler began this speech at the same time every year, but on this occasion, eager to return to Berlin and his military planners, the Fuehrer left early.Thirteen minutes later, the bomb exploded, causing eight deaths and massive damage. The ceiling collapsed just above where Hitler had been standing.
markfrankel18

Court Declares Captive Orangutan Is "Non-Human Person" | IFLScience - 0 views

www.iflscience.com/...tends-rights-captive-orangutan

TOK person science ethics

shared by markfrankel18 on 23 Dec 14 - No Cached
  • An Argentinian court has decided that a Sumatran orangutan (Pongo abelii) named Sandra is a non-human person with rights, and will no longer be held captive in the Buenos Aires zoo where she has lived for the last 20 years. Sandra's case was taken up in November 2013 by the Association of Professional Lawyers for Animal Rights (AFADA). The lawyers argued that Sandra was intelligent and self-aware enough to understand and be negatively affected by her conditions, as well as being aware of the passage of time. The court agreed, and the judges unanimously voted in favor of a writ of habeas corpus for Sandra, deciding that she had been wrongfully imprisoned.
markfrankel18

Stunted: The White Flags on the Brooklyn Bridge - The New Yorker - 1 views

www.newyorker.com/...stunted

TOK arts classification

shared by markfrankel18 on 27 Aug 14 - No Cached
  • Illegal public art is in the news. The most notorious instance this summer was the switch of flags on the Brooklyn Bridge, by two German artists, from the Stars and Stripes to all-white versions of the same. Others include a Canadian artist’s scrawls, partly in blood, on a wall in the Jeff Koons retrospective at the Whitney Museum and, in Moscow, the painting of a star ornament atop a Stalin-era tower, in Ukrainian national colors. Internationally, the British midnight muralist Banksy continues his waggish depredations, rivalled of late by a female upstart called Bambi, who likewise stencils images, only with a sexy-feminist spin. The over-all phenomenon could use a name—I propose Stunt art—and some analysis, starting with distinctions.
  • As a category of volunteer art, Stunt art borders the genres of spray-can graffiti and spectacular illegal sport, such as scaling or parachuting from tall buildings.
  • Stuntism is to art as weeds are to horticulture: plants in the wrong place. Authorities, social or botanical, define the wrongness, which becomes more arbitrary the more you think about it. Some weeds are as lovely as tulips. A superb gardener I know welcomes the sceptered majesty of common mullein (distinct from the mannerly hybrid varieties) wherever it opts to sprout. So may it be with Stunt art, in a time given to fanatical constraints on human-natural cussedness.
Lawrence Hrubes

Teaching Doubt - The New Yorker - 0 views

www.newyorker.com/...teaching-doubt

science religious knowledge systems skepticism doubt education

shared by Lawrence Hrubes on 15 Mar 15 - No Cached
  • “Non-overlapping magisteria” has a nice ring to it. The problem is that there are many religious claims that not only “overlap” with empirical data but are incompatible with it. As a scientist who also spends a fair amount of time in the public arena, if I am asked if our understanding of the Big Bang conflicts with the idea of a six-thousand-year-old universe, I face a choice: I can betray my scientific values, or encourage that person to doubt his or her own beliefs. More often than you might think, teaching science is inseparable from teaching doubt.
  • Doubt about one’s most cherished beliefs is, of course, central to science: the physicist Richard Feynman stressed that the easiest person to fool is oneself. But doubt is also important to non-scientists. It’s good to be skeptical, especially about ideas you learn from perceived authority figures. Recent studies even suggest that being taught to doubt at a young age could make people better lifelong learners. That, in turn, means that doubters—people who base their views on evidence, rather than faith—are likely to be better citizens.
  • Science class isn’t the only place where students can learn to be skeptical. A provocative novel that presents a completely foreign world view, or a history lesson exploring the vastly different mores of the past, can push you to skeptically reassess your inherited view of the universe. But science is a place where such confrontation is explicit and accessible. It didn’t take more than a simple experiment for Galileo to overturn the wisdom of Aristotle. Informed doubt is the very essence of science.
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  • Some teachers shy away from confronting religious beliefs because they worry that planting the seeds of doubt will cause some students to question or abandon their own faith or the faith of their parents. But is that really such a bad thing? It offers some young people the chance to escape the guilt imposed upon them simply for questioning what they’re told. Last year, I received an e-mail from a twenty-seven-year-old man who is now studying in the United States after growing up in Saudi Arabia. His father was executed by family members after converting to Christianity. He says that it’s learning about science that has finally liberated him from the spectre of religious fundamentalism.
Lawrence Hrubes

Why Are Some Cultures More Individualistic Than Others? - NYTimes.com - 0 views

www.nytimes.com/...dividualistic-than-others.html

TOK SocialScience human sciences culture indigenous knowledge systems anthropology

shared by Lawrence Hrubes on 04 Dec 14 - No Cached
  • AMERICANS and Europeans stand out from the rest of the world for our sense of ourselves as individuals. We like to think of ourselves as unique, autonomous, self-motivated, self-made. As the anthropologist Clifford Geertz observed, this is a peculiar idea.People in the rest of the world are more likely to understand themselves as interwoven with other people — as interdependent, not independent. In such social worlds, your goal is to fit in and adjust yourself to others, not to stand out. People imagine themselves as part of a larger whole — threads in a web, not lone horsemen on the frontier. In America, we say that the squeaky wheel gets the grease. In Japan, people say that the nail that stands up gets hammered down.
  • These are broad brush strokes, but the research demonstrating the differences is remarkably robust and it shows that they have far-reaching consequences. The social psychologist Richard E. Nisbett and his colleagues found that these different orientations toward independence and interdependence affected cognitive processing. For example, Americans are more likely to ignore the context, and Asians to attend to it. Show an image of a large fish swimming among other fish and seaweed fronds, and the Americans will remember the single central fish first. That’s what sticks in their minds. Japanese viewers will begin their recall with the background. They’ll also remember more about the seaweed and other objects in the scene.Another social psychologist, Hazel Rose Markus, asked people arriving at San Francisco International Airport to fill out a survey and offered them a handful of pens to use, for example four orange and one green; those of European descent more often chose the one pen that stood out, while the Asians chose the one more like the others.
  • In May, the journal Science published a study, led by a young University of Virginia psychologist, Thomas Talhelm, that ascribed these different orientations to the social worlds created by wheat farming and rice farming. Rice is a finicky crop. Because rice paddies need standing water, they require complex irrigation systems that have to be built and drained each year. One farmer’s water use affects his neighbor’s yield. A community of rice farmers needs to work together in tightly integrated ways. Not wheat farmers. Wheat needs only rainfall, not irrigation. To plant and harvest it takes half as much work as rice does, and substantially less coordination and cooperation. And historically, Europeans have been wheat farmers and Asians have grown rice.Continue reading the main story Continue reading the main story Continue reading the main story The authors of the study in Science argue that over thousands of years, rice- and wheat-growing societies developed distinctive cultures: “You do not need to farm rice yourself to inherit rice culture.”
Lawrence Hrubes

Problems Too Disgusting to Solve - The New Yorker - 0 views

www.newyorker.com/...ater-problems-disgusting-solve

science psychology emotion human sciences perception reason

shared by Lawrence Hrubes on 22 Feb 15 - No Cached
  • last month, Bill Gates released a video of one of the latest ventures funded by the Bill and Melinda Gates Foundation: the Omniprocessor, a Seattle-based processing plant that burns sewage to make clean drinking water. In the video, Gates raises a glass of water to his lips. Just five minutes ago, the caption explains, that water was human waste. Gates takes a sip. “It’s water,” he says. “Having studied the engineering behind it,” he writes, on the foundation’s blog, “I would happily drink it every day. It’s that safe.”
  • In the first series of studies, the group asked adults in five cities about their backgrounds, their political and personal views, and, most important, their view on the concept of “recycled water.” On average, everyone was uncomfortable with the idea—even when they were told that treated, recycled water is actually safer to drink than unfiltered tap water. That discomfort, Rozin found, was all about disgust. Twenty-six per cent of participants were so disgusted by the idea of toilet-to-tap that they even agreed with the statement, “It is impossible for recycled water to be treated to a high enough quality that I would want to use it.” They didn’t care what the safety data said. Their guts told them that the water would never be drinkable. It’s a phenomenon known as contagion, or, as Rozin describes it, “once in contact, always in contact.” By touching something we find disgusting, a previously neutral or even well-liked item can acquire—permanently—its properties of grossness.
  • eelings of disgust are often immune to rationality. And with good reason: evolutionarily, disgust is an incredibly adaptive, life-saving reaction. We find certain things instinctively gross because they really can harm us. Human secretions pass on disease. Noxious odors signal that your surroundings may be unsafe. If something feels slimy and sludgy, it’s likely a moisture-rich environment where pathogens may proliferate. Disgust is powerful, in short, because it often signals something important. It’s easy, though, to be disgusted by things that aren’t actually dangerous. In a prior study, Rozin found that people were unwilling to drink a favorite beverage into which a “fully sterilized” cockroach had been dipped. Intellectually, they knew that the drink was safe, but they couldn’t get over the hump of disgust. In another experiment, students wouldn’t eat chocolate that had been molded to look like poop: they knew that it was safe—tasty, even—but its appearance was too much to handle. Their response makes no logical sense. When it comes to recycled water, for instance, Rozin points out that, on some level, all water comes from sewage: “Rain is water that used to be in someone’s toilet, and nobody seems to mind.” The problem, he says, has to do with making the hidden visible. “If it’s obvious—take shit water, put it through a filter—then people are upset.”
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  • Disgust has deep psychological roots, emerging early in a child’s development. Infants and young toddlers don’t feel grossed out by anything—diapers, Rozin observes, are there in part to stop a baby “from eating her shit.” In the young mind, curiosity and exploration often overpower any competing instincts. But, at around four years old, there seems to be a profound shift. Suddenly, children won’t touch things that they find appalling. Some substances, especially human excretions of any sort, are seen as gross and untouchable all over the world; others are culturally determined. But, whether universal or culturally-specific, the disgust reactions that we acquire as children stay with us throughout our lives. If anything, they grow stronger—and more consequential—with age.
markfrankel18

Biology's Holy Grail: The Species And Its Controversial Recent History | IFLScience - 1 views

www.iflscience.com/...s-controversial-recent-history

TOK species biology science classification

shared by markfrankel18 on 15 Jun 15 - No Cached
  • And, the basic unit of taxonomy – ‘the species’ – remains an elusive and controversial concept despite its fundamental importance to science. Yet, few people outside of biology and philosophy realise that ‘the species’ has been at the centre of a major controversy in science for much of the last 50 years.
  • Taxonomy is a fundamental or ‘enabling’ science that underpins all of biology and its many related fields including medical research.
  • • How does the species category compare with other scientific groups or types of things like say the chemical elements? • Does it play the same kind of role in science – conveying the same sorts of information and allowing us to make predictions about nature? • What’s the best, most objective, way to recognise a species?
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  • So, it turns out we’ve all been cheated by the textbooks we read in high school or university. Short-changed by our science teachers and biology lecturers.
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