Flies Turn on a Dime

first_img51; A fly can turn 180 degrees in one tenth the time it takes you to blink an eye.  Beating their wings 250 times a second, they don’t even have to think about each wing beat, PhysOrg said about studies at Brown University using high-speed cameras and image tracking software.  “[Attila] Bergou discovered that flies rely less on their brains than previously thought and more on the clever design of their wings,” the article said.  “To make a turn, a fly simply twitches a muscle that rolls its shoulder slightly.  The wing does the rest, naturally adjusting over the course of a few beats, tilting by about 9 degrees, and creating drag forces that wheel the insect around.”  The article includes a 32-second video clip that allows you to watch the turn in slow motion.    The U-turn of the fly is much faster than anything man-made can achieve.  A scientist at Harvard is looking enviously at the fly, the article said, for envisioning electrical flying robots that may some day come close to matching the fly’s design specifications.Evolution makes sense when you think in generalities.  When you look at things in detail, and measure what is required to make them function, you start thinking in terms of design specifications.  You want to imitate them.  When you try to imitate them, and find out how hard it is, you become an intelligent design believer.  Darwinian excuses like, “Evolution had a million year head start,” begin to sound like desperate question-begging attempts to hang onto an obsolete dogma that has lost its credibility in the details.(Visited 39 times, 1 visits today)FacebookTwitterPinterestSave分享0last_img read more

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No nod for tax on clicking pictures in Goa village, says Minister

first_imgGoa Tourism Minister Manohar Ajgaonkar on Thursday said his department has not granted any permission for imposition of a ‘Swachhta Tax’ on clicking photographs in the scenic Parra village of North Goa district.Mr. Ajgaonkar told PTI that the tourism department will probe how the panchayat of Parra, which is the ancestral village of late Chief Minister Manohar Parrikar, was levying such a tax. The matter came to light on Wednesday after some Goa- based activists took to social media to highlight that the panchayat of Parra village, located about 9 km from Panaji, had started levying tax on clicking pictures or shooting videos in its jurisdiction. A sign board put up prominently on the main road of the village reads: “Swacchta Tax/Mission Clean Parra Tax will be levied on all film shoots and photo shoots. Tax will vary for individuals and commercials.” Taking serious note of it, Mr. Ajgaonkar said, “My department has not granted any permission for imposition of such a tax. We will inquire into this.” “If every panchayat starts imposing its own taxes like this, it would be harmful for the State’s tourism potential,” the Minister said. However, a representative of the Parra village panchayat, on condition of anonymity, said the tax was imposed as tourists leave behind lot of garbage and litter the place. “The fund raised through the tax would be used to clean the place. We don’t want to depend on the government to sanction money to keep our place clean. We are doing it through our own resources by levying the tax,” he said. Parra is one of the scenic villages located in the North Goa beach belt.last_img read more

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