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POPSUnintelligent Design At this point, 30 years after the Nobel Laureate Daniel Kahneman and his late collaborator Amos Tversky started documenting a rash of fallacies in human reasoning, the idea that the human mind would be "perfect in His image" is as outdated (and narcissistic) as the idea that the solar system would revolve around the planet earth. The only theory that can really make sense of these needless imperfections is Darwin's theory of natural selection, which holds that humans (and all other life forms) evolve through a blind process known as descent-with-modification, in which new life forms represent random modifications of earlier life forms -- with no central overseer to guide the process. Such a random process can, over time, lead populations of creatures to become more adapted to their environment, but it is also vulnerable to getting stuck, in the sort of good-enough-but-not-perfect solutions that mathematicians call local maxima.
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POPSWhales & Dolphins Inspire a Novel Design for Wind Turbines "Engineers have previously tried to ensure steady flow patterns on rigid and simple lifting surfaces, such as wings. The lesson from biomimicry is that unsteady flow and complex shapes can increase lift, reduce drag and delay 'stall', a dramatic and abrupt loss of lift, beyond what existing engineered systems can accomplish," Fish said. "There are even possibilities that this technology could be applied to aeronautical designs such as helicopter blades in the future."
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POPSThe truth about recycling Far too much valuable info here to fit in a clip, so go to the source for interesting discussions of the history of recycling, current status, innovations and concerns about what happens to recyclables being shipped to China and other developing nations. China is now the largest importer of recyclable materials in the world! The explanation of how single stream collection of recyclables works is fascinating. I was not aware of all the new technology being employed to sort and separate recyclable materials. The section on the future of recycling discusses the need for product design to take into account recycling of the product materials to create "closed-loop" cycles where there is no waste. Sustainable packaging emphasizes the use of renewable, recycled and non-toxic source materials to benefit the environment and cut costs. Wal-Mart is jumping on this bandwagon. "Waste is really a design flaw."
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POPSProfessor Designs Plasma-propelled Flying Saucer The force created by passing an electrical current through this plasma pushes around the surrounding air, and that swirling air creates lift and momentum and provides stability against wind gusts. In order to maximize the area of contact between air and vehicle, Roy’s design is partially hollow and continuously curved, like an electromagnetic flying bundt pan. One of the most revolutionary aspects of Roy’s use of magnetohydrodynamics is that the vehicle will have no moving parts. The lack of traditional mechanical aircraft parts, such as propellers or jet engines, should provide tremendous reliability, Roy said. Such a design also will allow the WEAV to hover and take off vertically.
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POPSCheck out these cans! Architect and engineers compete to see whose team can build the most spectacular structure using little more than cans of food at Canstruction, the 13th annual NYC Design and Build competition in New York . All these cans will go to the food bank afterwards…
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POPSEvolution: What the Fossils Say ? (a book recomm) Michael Shermer - is a science writer, historian of science, founder of The Skeptics Society, and editor of its magazine Skeptic, which is largely devoted to investigating and debunking pseudoscientific and supernatural claims. since April 2004 has been a monthly columnist for Scientific American magazine with his Skeptic column. Shermer was once a fundamentalist Christian. Shermer is now a professed atheist, but prefers to use nontheist, and an advocate for humanist philosophy.
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POPSIn defence of plastic "New plastics that change from liquid to solid on impact are finding applications in protective clothing and plastic products are being developed using the principles of nature - an area of research called biomimetics. So plastic can be valuable and can be used for functions where it needs to last for a considerable length of time. Concepts of green design should now be applied to all new plastics products so that disposable items, such as plastic packaging and throwaway consumer items, biodegrade and do not fill landfill sites or litter the landscape or seas"
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