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Dragonflies do a backwards roll to fly upright – even when unconscious

Samuel Fabian/Lin Lab When falling through the air in an upside-down position, dragonflies do backwards somersaults to return to an upright stance. They do this even when they are unconscious and – if their wings are propped open – when they are dead. These findings suggest that dragonflies are equipped with a potent physical design that keeps them right side up and airborne without any real effort. Such a passive flight-stabilisation mechanism could inspire better designs for small aircraft like drones, allowing for good stability and manoeuvrability “with less computational effort”, says Samuel Fabian at Imperial College London. “Passive stability lowers the effort requirements of flight, likely influencing the evolution of the dragonfly’s shape.”

The Aviation Lesson of 28 December For The Pandemic Stricken World

The Aviation Lesson of 28 December For The Pandemic Stricken World The Aviation Lesson of 28 December For The Pandemic Stricken World Sri Lanka Guardian December 27, 2020 This is not a time that the world can hide behind confusion or pretension.  We must follow regulation.  We must recognize that our own fallibility must not stem from pretension or contumacious ignorance.  by Dr. Ruwantissa Abeyratne in Montreal It s better to be on the ground wishing you were in the air, than in the air wishing you were on the ground ~  Anon Whenever December 28th rolls by, we in the aviation community cannot help but remember the monumental stupidity that humans are capable of.  On this day in 2014,  Indonesia AirAsia Flight 8501 crashed into the Karimata Strait en route from Surabaya to Singapore, killing all 162 people aboard. The profession of aeronautics is known for the  high intelligence and precision it bestows on its members, offering standardized and harmonious global laws, r

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