Circumhorizontal arc Circumhorizontal arc in relation to 22° halo or circumscribed halo, Oregon Other currently accepted names for the phenomenon are circumhorizon arc or lower symmetric 46° plate arc.[1] The misleading term "fire rainbow" is sometimes used to describe these phenomena, although they are neither rainbows, nor related in any way to fire. The name comes from its appearance as a rainbow taking the shape of flames in the sky.[2][3] The complete halo is a huge, multi-coloured band running parallel to the horizon with its centre beneath the sun. How often a circumhorizontal arc is seen, depends on the location and the latitude of the observer. Formation of the halo requires that the sun be very high in the sky, at an elevation of 58° or greater, and that a cirrus cloud or haze be present and contain plate-shaped ice crystals. The arc has a considerable angular extent and thus, rarely is complete. Photographed near Kennedy Space Center, Florida See also[edit] References[edit] External links[edit]
Sugar, not fat, exposed as deadly villain in obesity epidemic | Society Sugar – given to children by adults, lacing our breakfast cereals and a major part of our fizzy drinks – is the real villain in the obesity epidemic, and not fat as people used to think, according to a leading US doctor who is taking on governments and the food industry. Dr Robert Lustig, who was this month in London and Oxford for a series of talks about his research, likens sugar to controlled drugs. Cocaine and heroin are deadly because they are addictive and toxic – and so is sugar, he says. "We need to wean ourselves off. We need to de-sweeten our lives. "The food industry has made it into a diet staple because they know when they do you buy more. Lustig's book, Fat Chance: The Bitter Truth About Sugar has made waves in America and has now been published in the UK by 4th Estate. That does not mean burgers are OK. These amino acids are found in corn-fed American beef. But his bigger message is that cheap sugar is endangering lives. But so is the US government, he says. • Oranges.
Geek image scares women away from tech industry High performance access to file storage Women don't consider IT careers because “the popular media’s ‘geek’ image of the technology field” along with other factors including a lack of female role models and support at home and work “tend to dissuade talented girls from pursuing a tech career.” “Misguided school-age career counselling” is another problem, as it often suggests to young women that ICT careers are too hard or somehow unfeminine. That's the conclusion of a “high-level dialogue” hosted by the International Telecommunication Union (ITU) in New York yesterday. The event was staged on Girls in IT Day, an annual United Nations day to promote careers in technology for women. Girls in IT Day events were staged in more than 70 countries. In his welcoming remarks, ITU Secretary-General Dr Hamadoun Touré said that the ICT industries need women. “Over the coming decade, there are expected to be two million more ICT jobs than there are professionals to fill them,” he said.
What are memories made of? Imagine being unable to remember the past. Like a fading dream, your current consciousness is lost to eternity. This is the experience of someone suffering from amnesia. At the top of the taxonomical tree, a split occurs between declarative and non-declarative memories. However, amnesic patients can show an astounding array of mnemonic abilities, such as learning new skills and habits. Despite being unable to form new long-term memories, many amnesic patients can still access long-term memories formed before the brain damage was inflicted. A popular view is that during sleep your hippocampus "broadcasts" its recently captured memories to the neocortex, which updates your long-term store of past experience and knowledge. Studying patients has taught us where memories might be stored, but not what physically constitutes a memory. Of all the things we need to remember, one of the most essential is where we are.
Superbug risk from farming medicines: Healthy animals 'shouldn't be given antibiotics' Minister says preventative use of antibiotics in animals should be bannedFarmers routinely give antibiotics to perfectly healthy livestockSees bugs increasingly developing resistance to the drugsShould humans become infected, normal medicines may not work By Sean Poulter Published: 23:25 GMT, 19 March 2013 | Updated: 08:35 GMT, 20 March 2013 Dangerous new superbugs are being created by farmers routinely giving antibiotics to perfectly healthy animals, it has been claimed. Health minister Anna Soubry has now called on farmers, vets and drug companies to put a stop to the policy to protect human health. Livestock are often given antibiotics whether or not they are unwell as a preventative measure to stop diseases spreading, but the bugs are increasingly developing resistance to the drugs. Superbugs: Farmers could potentially be creating a risk to human health by routinely giving antibiotics to healthy animals, it has been claimed
Therapy Fixes Color Blindness in Monkeys Monkeys once color-blind can now see the world in full color thanks to gene therapy. The results demonstrate the potential for such methods to eventually cure human vision disorders, from color blindness to possibly other conditions leading to full blindness. The primate patients, named Dalton and Sam, are two adult, male squirrel monkeys that were red-green color-blind since birth — a condition that similarly affects human males more than females. Five months after researchers injected human genes into the monkeys' eyes, the duo could see red as if they had always had this ability. Since human genes were used and the monkeys' eyes and brains are similar to ours, at least in terms of color vision, the researchers hope the same procedure could work in humans. "People who are color-blind feel that they are missing out," said study researcher Jay Neitz, a professor of ophthalmology at the University of Washington, Seattle. Color-coded Like humans, monkeys' eyes contain cone and rod cells.
Game Theory This article sketches the basic concepts of the theory of games in order to discuss some of their philosophical implications and problems. Consider the following situation: when two hunters set out to hunt a stag and lose track of each other in the process, each hunter has to make a decision. Either she continues according to plan, hoping that her partner does likewise (because she cannot bag a deer on her own), and together they catch the deer; or she goes for a hare instead, securing a prey that does not require her partner’s cooperation, and thus abandoning the common plan. Each hunter prefers a deer shared between them to a hare for herself alone. But if she decides to hunt for deer, she faces the possibility that her partner abandons her, leaving her without deer or hare. So, what should she do? Situations like this, in which the outcome of an agent’s action depends on the actions of all the other agents involved, are called interactive. Table of Contents 1. a. Solution Concepts
Age of the universe: Planck results show universe is 13.82 billion years old. The Universe is a wee bit older than we thought. Not only that, but turns out the ingredients are a little bit different, too. And not only that, but the way they’re mixed isn’t quite what we expected, either. And not only that, but there are hints and whispers of something much grander going on as well. The European Space Agency’s Planck mission is what’s going on. This light was first emitted when the Universe was very young, about 380,000 years old. The light from the early Universe shows it’s not smooth. What started out as quantum fluctuations when the Universe was smaller than a proton have now grown to be the largest structures in the cosmos, hundreds of millions of light years across. And those fluctuations are the key to Planck’s observations. The Universe is 13.82 billion years old.The Universe is expanding a bit slower than we expected.The Universe is 4.9 percent normal matter, 26.8 percent dark matter, and 68.3 percent dark energy.The Universe is lopsided. I love this bit.
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