Science

Data from NASA's Cassini spacecraft show that the sizes and patterns of dunes on Saturn's moon Titan vary as a function of altitude and latitude. The dunes in areas that are more elevated or are higher in latitude, such as ...

New submitter GoJays writes "An 18-year-old from Saratoga, California has won an international science fair for creating an energy storage device that can be fully juiced in 20 to 30 seconds. The fast-charging device is a so-called supercapacitor, a gizmo that can pack a lot of energy into a tiny space, charges quickly and holds its charge for a long time. What's more, it can last for 10,000 charge-recharge cycles, compared with 1,000 cycles for conventional rechargeable batteries, according to the inventor Eesha Khare." This one in particular has been used so far only to power an LED, rather than a phone or laptop, but I hope in a few years near-instant charging of portable electronics will be the norm as supercapacitors grow more common. Read more of this story at Slashdot.

A ballot measure that would add fluoride to the water supply in Portland, Ore., has divided the city's powerful progressive community. Voters go to the polls Tuesday.PORTLAND, Ore. — Proponents of fluoridating Portland's water supply had no trouble getting the local Urban League on board. Here in the biggest city in the country that still doesn't treat its water to prevent tooth decay, studies show that low-income children and kids of color have been hit hardest by untreated cavities.

Enda O'Doherty in Eurozine: Germans have featured prominently among those who have sometimes had difficulty in believing that their native tongue is quite up to the mark, or, as we say in our barbarous contemporary jargon, fit for purpose. The German invention of printing in the mid-fifteenth century was certainly to give a boost to the prestige of vernacular languages (at the expense of the universal language, Latin). It was also to be important in spreading the new religion, Protestantism. Martin Luther enthused: Printing is God's most recent gift and his greatest. Through it, in effect, God wishes to make known the true religion to the whole world, right to the extremities of the Earth. And so it came to pass. But the Whiggish Protestantism (still alive in the popular cultural histories of Lord Bragg, formerly Melvyn) which celebrates the unstoppable spread of the Word, to be read and chewed over by the individual in private – an improving substitute for the "nonsense" mumbled by the priest in an incomprehensible language – tends to forget that in the short term virtually no one could read, whereas all could see and grasp the meaning of the wall paintings, statues and altarpieces in the church, which the Protestants for the most part were so keen to efface or destroy. The short term in this context, we should remember, was rather long. Mass literacy came to England only in the nineteenth century.Luther however, after his initial enthusiasm, seems to have had second thoughts about the wisdom of translating the Bible into German and making it available to everyone, or everyone who could read (he was to find, disturbingly, that they disagreed with him about what it meant).

John B. Thompson reviews Stephen R. Platt's Autumn in the Heavenly Kingdom : China, the West, and the Epic Story of the Taiping Civil War and Tobie Meyer-Fong's What Remains : Coming to Terms with Civil War in 19th Century China in the LA Review of Books: The Taiping Civil War (1850­–1864) started with a dream. Hong Xiuquan, a young scholar from Guangdong, a province in southern China, aspired to the government position and the unassailable status guaranteed by success in imperial civil service examinations. However, in 1837, Hong flunked the provincial-level examination in Canton, the province’s major city, for the third time and returned home broken. He collapsed into episodic trances in which he traveled to a heavenly realm and met an old man in a black dragon robe. The man, whom Hong understood to be his “father,” stood grieving at the edge of heaven, dismayed by the people of his creation who had been led astray by demons. He dispatched Hong to earth, along with a middle-aged man identified as Hong’s “elder brother,” to slay these devils.  Until 1843, Hong had no vocabulary to explain his visions. That year, he rediscovered a collection of Bible passages he had obtained in Canton years before, and the meaning of his visions became clear: his heavenly father was God. His elder brother was Jesus. The demons were China’s false idols and Hong was China’s savior. Hong immediately began to preach his vision along with the New Testament in the mountains of southern China and quickly amassed a growing following among the farmers and villagers.  Over time, Hong resolved to establish on earth the kingdom he had seen in heaven. He redefined the demons from the idols of China’s cultural inheritance to the alien Manchu rulers of the Qing Dynasty. “God had divided the kingdoms of the world […] just as a father divides his estates among his sons,” Hong said. “Why should these Manchus forcibly enter China and rob their brothers of their estate?” In 1850, Hong and his Society of God Worshippers openly rebelled against Qing authorities. In 1851, Hong formally declared the existence of the Taiping Heavenly Kingdom with himself as Heavenly King. By 1853, his resourceful, ever-growing army had captured the old Ming Dynasty capital of Nanjing. From that point until the end of the civil war, there were effectively two states within China.

Claude S. Fischer in Boston Review: Some observers respond to questions raised by the Flynn Effect by dismissing intelligence testing as an exercise in cultural domination. This ostrich-like response ignores the fact that IQ scores, whatever they measure, consistently correlate with important outcomes such as how well people perform their jobs and how long they live. Such dismissal also ignores the growing evidence that there is a physical, neurological basis to cognition and cognitive skills. A more serious critique of the research attacks the definition of intelligence. Researchers in the intelligence field define it as a general capability to reason, understand complex ideas, think abstractly, and solve problems. You can measure it, they argue, using IQ tests. Critics consider these tests to be superficial and argue that they ignore other kinds of intelligence such as emotional intelligence or deeper traits such as wisdom. While researchers cannot track historical trends in wisdom, they are trying to wise up about the apparent historical increase in IQ. One might suspect that the tests have gotten easier. They haven’t. In fact, the tests have gotten harder in order to keep the average IQ at one hundred. By reversing that process, Flynn showed the long-term rise in real performance. Other challengers argue that we are not really smarter than our great-grandparents; it’s just that people today learn the answers to test questions in school or have become familiar with testing. However, scores on the parts of tests that are most easily taught and are the most culture-laden—say, recognizing vocabulary or knowing geography—have not changed much. Scores on those parts of tests that measure the most abstract, presumably culture-free thinking—say, drawing logical inferences from patterns in designs—have risen the most. The sorts of thinking that are supposedly most detached from classroom and cultural learning are the ones that have really improved. So if a real increase in some kind of cognitive ability is under way, the question is why.

A conversation with Lee Smolin in Edge: The main question I'm asking myself, the question that puts everything together, is how to do cosmology; how to make a theory of the universe as a whole system. This is said to be the golden age of cosmology and it is from an observational point of view, but from a theoretical point of view it's almost a disaster. It's crazy the kind of ideas that we find ourselves thinking about. And I find myself wanting to go back to basics—to basic ideas and basic principles—and understand how we describe the world in a physical theory. What's the role of mathematics? Why does mathematics come into physics? What's the nature of time? These two things are very related since mathematical description is supposed to be outside of time. And I've come to a long evolution since the late 80's to a position, which is quite different from the ones that I had originally, and quite surprising even to me. But let me get to it bit by bit. Let me build up the questions and the problems that arise. One way to start is what I call "physics in a box" or, theories of small isolated systems. The way we've learned to do this is to make an accounting or an itinerary—a listing of the possible states of a system. How can a possible system be? What are the possible configurations? What were the possible states? If it's a glass of Coca Cola, what are the possible positions and states of all the atoms in the glass? Once we know that, we ask, how do the states change? And the metaphor here—which comes from atomism that comes from Democritus and Lucretius—is that physics is nothing but atoms moving in a void and the atoms never change. 

From New Statesman: Given its successes, feminism today looks very different from the feminism of 1913. There is, wonderfully and rightly, something much less embattled, much more inclusive and much more relaxed about feminists now. Rather than chasing the chimera of the “perfect mother” and the “perfect citizen”, we can accept one another in our flawed variety. The humourlessness that sometimes characterised women’s politics in the early 20th century has disappeared and many leading voices in contemporary feminism, from Caitlin Moran to the Vagenda magazine, use humour as their main weapon. The new tone of feminism suggests that instead of being furious and earnest all the time, we can begin to enjoy how far we have come. This humour is hugely attractive to younger women and effective in divesting the enemy of much of his power simply by giggling at him. It rests very much on the progress that has already been made and the ability of the funny feminists to build their audiences through social media and the internet, rather than having to rely exclusively on editors who may not be in on the jokes. Yet I hope that, however much we love the funny feminists, we do not forget to love some of the other aspects of feminism – aspects that may be harder to find on one’s iPhone and harder to laugh about. The unifying force of the movement for suffrage is not going to be seen again in our generation. But I can still see the power of activism and it is heartening to see women still coming together to dem­onstrate this power through action in everyday life, not just over the internet or through the published word. Over the past 12 months, I have taken part in a lobby of parliament organised by UK Feminista; in One Billion Rising, an international day of activism against violence against women organised by V-Day; and in a number of conferences and public gatherings at which women are learning from one another face to face. Such activity can sometimes feel time-consuming and frustratingly slow but it also leaves me with a renewed understanding of the process of creating change. And that is vital, because even though feminism has achieved so much, there is still so much to be done. While this government is making decisions on benefits, education and housing that are forcing more women and children into poverty, we have to protest. While women are still experiencing rape and sexual assault in their everyday lives and finding that the perpetrators walk free, we need to stand up for change. While women are still too often absent from public life, we need to make sure our voices are heard loudly, even angrily. The other crucial aspect of feminism that should not be forgotten is the importance of listening to stories about what goes on beyond the comfort of our lives. There is always time to make jokes about thongs and pubic waxing or about women’s magazines and bad sex but funny feminism is not always great at bringing in other issues. After all, there is not much to laugh about in women having to queue at food banks, or being trafficked into forced prostitution or being killed in the name of honour. More here.

Our past can be summarized as a sequence of increasingly fast eras: animals, foragers, farmers, industry. Foragers grew by a factor of about four hundred over two million years, farmers grew by a factor of about two hundred over ten thousand years, and the industry economy has so far grown by a factor of about eight hundred over three hundred years. If this trend continues then before this era grows by another factor of a thousand, our economy should transition to another even faster growing era. I saw the latest Star Trek movie today. It struck me yet again that such stories, set two centuries in our future, imagine a unlikely continuation of industry era styles, trends, and growth rates. At current growth rates the economy would grow by another factor of two thousand over that time period. Yet their cities, homes, workplaces, etc. look quite recognizably industrial, and quite distinct from either farmer or forager era styles. The main ways their world is different from ours is in continuing industry era trends, such as to richer and healthier individuals, and to more centralized government. While this seems unlikely, it does make sense as a way to engage the audiences of today. But it leads me to wonder: what if past eras had set stories in imagined futures where their era’s trends and styles had long continued? For example, imagine that the industrial revolution had never happened, and that the farming era had continued for another twenty thousand years, leading to a world population of perhaps a trillion, mostly farming at subsistence incomes within farmer-era social institutions. Oh there’d be a lot of sci/tech advances, just not creating much industry. Perhaps they’d farm the oceans and skies, and have melted the poles. Following farmer era trends, there’d be less violence, and longer term planning horizons. There’d be a lot more thoughtful writings, but without much intellectual specialization having arisen. Towns and firms would also still be small and less specialized. Or, imagine that the farming revolution had never happened, but that foragers had continued to advance for another two million years, reaching a population of ten billion. They’d still live in small wandering bands collecting wild food, but in a much wider range of environments. Maybe they’d forage the seas and the skies. Their brains would be bigger, their tools more advanced, and their culture of participatory dance, music, and stories far more elaborate. These sound like fascinating worlds to imagine, and would make good object lessons as well. Our future may be as different from the world of Star Trek as these imagined worlds would be from our world today.

Classic board game epitomizes the DIY ethos of gigantic arts, engineering and technology festival. Continue reading ?