Wed, Feb 22, 2017 | updated 09:25 AM IST

Flying insects don't obey aerodynamic laws of airplanes: Study

Updated: Jul 12, 2016 15:16 IST

Washington D.C., July 12 (ANI): New York University researchers have found that the movement of flying insects are unmatched even by the best pilots due to the fact that these critters defy aerodynamic laws of airplanes.

Leif Ristroph, an assistant professor at NYU's Courant Institute of Mathematical Sciences, said "We've known for quite a while that the aerodynamic theory for airplanes doesn't work so well in predicting the force of lift for flapping wings. We found that the drag or wind resistance also behaves very differently and we put together a new law that could help explain how insects move through the air."

"To double its flight speed, an airplane must increase its thrust four-fold to counter the stronger wind resistance," Ristroph explains in outlining the law. "I

He added in contrast they found that flapping wings have a drag that is in direct proportion to its flight speed, to go twice as fast, an insect simply needs to double its thrust."

Reserchers found that the significance of aerodynamic drag and its strong increase with speed has been known since before the Wright brothers took flight.

After conducting experiment, researchers showed that the back-and-forth motions cause the drag to resist the movement in some instances; however, at other times the drag is actually directed forward, more like a thrust.

This law may not be new to insects, which have been flying with flapping wings for hundreds of millions of years. But the authors think that their findings could help guide the design of tiny flying robots that mimic the wing motions of insects.

The study is published in Physical Review Fluids journal. (ANI)

Washington D.C. [USA], Feb. 22 (ANI): Now don't blame those chips and chocolates for you childs extra pounds, as a study says around 35-40 percent of a child's is inherited from their parents.

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Drinking too much may age arteries over time!

Updated: Feb 22, 2017 06:03 IST

Washington D.C. [USA], Feb. 22 (ANI): Excessive boozing over the years might age arteries prematurely, especially in men, putting them at an increased risk for heart disease.

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Chronic knee pain may be treated online

Updated: Feb 21, 2017 06:41 IST

Washington D.C. [USA], Feb. 21 (ANI): A study has found out that an online intervention, combining home exercise and pain-coping skills training, provided substantial clinical benefits for patients suffering from chronic knee pain.

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Washington D.C. [USA], Feb. 21 (ANI): Only exercise is not enough to maintain that figure, which is an after effect of much toil and sweat!

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New Delhi [India], Feb. 20 (ANI): With rising life expectancy, increasingly sedentary lifestyles and surge in incidence of obesity, India is also witnessing a resultant rise in orthopedic problems as a natural corollary.

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Children inherit obesity from parents: Study

Updated: Feb 20, 2017 14:54 IST

Washington D.C. (USA), Feb. 20 (ANI): A study reveals that 35-40 percent of a child's 'Body Mass Index' - how fat or thin they are - is inherited from their parents.

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New Delhi [India], Feb 20. (ANI): Good news for all those lazy-headed not-really-a-cleanliness-freak out there! Scientists have found out that the obsession with hygiene could even be turning some beneficial bacteria found in the human gut into "endangered species".

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New Delhi [India], Feb 20. (ANI): In order to persuade someone to quit smoking, it is the 'emotions' that need to be triggered rather than inciting fear in an individual.

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No difference between good or bad diet: Study

Updated: Feb 20, 2017 05:54 IST

New Delhi [India], Feb 20. (ANI): Ever faced a choice between Brown and white bread?

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Washington D.C. [USA], Feb. 19 (ANI): To boost sustainability of livestock production, a study finds that gene editing - one of the newest and most promising tools of biotechnology - enables animal breeders to make beneficial genetic changes, without bringing along unwanted genetic changes.

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People with ADHD may have smaller brain volume

Updated: Feb 19, 2017 07:09 IST

New Delhi [India], Feb 19. (ANI): In a latest study it has been found out that people diagnosed with attention deficit hyperactivity disorder (ADHD) have smaller brain volume than those without the disorder.

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New Delhi [India], Feb 19. (ANI): What if we tell you that scientists can actually slow down the process of ageing. Sounds too good to be true right?

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New Delhi [India], Feb 19. (ANI): Lefty or righty? Well it was decided when you were still in your mum's womb!

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Dads-to be face greater risk of depression

Updated: Feb 19, 2017 06:53 IST

New Delhi [India], Feb 19. (ANI): Expecting a baby is always a joyous experience for both the mother and the father, however a latest study has found out that fathers-to-be can be at risk of depression symptoms if they feel stressed or are in poor health.

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New Delhi [India], Feb 19. (ANI): Do you find it difficult hearing out people at a noisy bar or a restaurant even though you have passed the hearing test with flying colors? Well, you might be secretly deaf!

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New Delhi [India], Feb 19. (ANI): What if we told you that rice has the potential of carrying arsenic and is more than hazardous to feed it to infants!

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Washington D.C. [USA], Feb. 18 (ANI): Now you can save your kid from surgery, as a study shows that antibiotics may be an effective treatment for acute non-complicated appendicitis in children, instead of surgery.

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Washington D.C. [USA], Feb. 18 (ANI): Attention new mommies, sing lullabies to your new born to feel more connected to your babies, suggests a study.

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Washington D.C. [USA], Feb. 18 (ANI): Cancer patients can improve their quality of life with just 30 minutes of walking, suggests a study.

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New Delhi [India], Feb. 17 (ANI): Birth of a baby may be a sweet moment but changing life style of women is posing 'sweet' challenge to it.

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