Tue, Jul 25, 2017 | updated 12:20 PM IST

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

Updated: Jul 12, 2016 15:16 IST      
Flying insects don't obey aerodynamic laws of airplanes: Study

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)

World IVF Day: Celebrating birth of world's first IVF baby

Updated: Jul 25, 2017 12:03 IST     

Gurugram (Haryana) [India], July 25 (ANI): Thirty-nine years ago the world was introduced to its first test-tube baby when Louise Brown was born through the IVF technique at Bourn Hall.

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Washington D.C. [USA], July 25 (ANI): To provide better shield against infection, researchers have devised a new way of producing the seasonal flu vaccine.

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Can eye test help diagnose autism?

Updated: Jul 25, 2017 10:27 IST     

Washington D.C. [USA], July 25 (ANI): Researchers have herald a new tool that helps physicians identify a sub-group of people with Autism spectrum disorders (ASD).

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New Delhi [India], 25 July (ANI): Infertility is on the rise among Indians with 10 to 14% of the population affected by it. The main addition has been the group of career-oriented women who delay childbearing and try for a baby later as compared to women in previous generations.

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Ensure to have healthy heartbeats

Updated: Jul 25, 2017 04:33 IST     

New Delhi [India], July 25 (ANI): With increasing lifestyle problems, Cardiovascular Diseases (CVDs) have emerged as a leading cause of mortality worldwide, followed by cancer.

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World Optometry Congress to bring hope for visually impaired

Updated: Jul 24, 2017 14:40 IST     

New Delhi [India], July 24 (ANI): The world's visually impaired will be the subject of some serious discussion at the forthcoming second World Congress of Optometry in Hyderabad.

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Neuroticism might increase your life span

Updated: Jul 24, 2017 13:25 IST     

Washington D.C. [USA] ,July 24 (ANI): Neuroticism is one of the big five higher-order personality traits in the study of psychology.

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Washington D.C. [USA], July 24 (ANI): Survivors of a stroke or a mini-stroke without early complications have an increased risk of death, another stroke or heart attack (myocardial infarction) for at least five years following the initial stroke.

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Genetic variation may increase tuberculosis susceptibility

Updated: Jul 23, 2017 10:53 IST     

Washington D.C. [USA], July 23 (ANI): Chinese researchers have found that a single change in a gene may increase the risk of tuberculosis.

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This is your brain on depression

Updated: Jul 22, 2017 13:55 IST     

Washington D.C. [USA], July 22 (ANI): Got the blues? According to a recent study, depression can change the structure of your brain.

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Rush-hour pollution may be more harmful than thought

Updated: Jul 22, 2017 10:57 IST     

Washington D.C. [USA], Jul 22 (ANI): Turns out, rush-hour commuters may be in for a double whammy of pollution exposure.

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TRAC, MedGenome announce Cancer Immunotherapy solution

Updated: Jul 22, 2017 06:24 IST     

New Delhi [India], July 22 (ANI): Toronto Recombinant Antibody Centre (TRAC) from the University of Toronto, Canada agreed to license MedGenome's patented cancer immunotherapy solution OncoPept to develop biomarkers for their drug candidates against immune modulators to treat cancer.

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Are some people genetically programmed to be depressed?

Updated: Jul 21, 2017 09:48 IST     

Washington D.C. [USA], Jul 21 (ANI): It's a sombre thought, but it seems that some of us are born more likely to be depressed.

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Washington D.C. [USA], Jul 21 (ANI): A team of researchers has come up with a new imaging technique that can diagnose cardiac sarcoidosis much more accurately than traditional tests.

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Ahmedabad (Gujarat) [India], July 21 (ANI): Ayurveda is a form of alternative medicine which seeks to treat and integrate body, mind and spirit using a comprehensive holistic approach especially by emphasizing diet, herbal remedies, exercise, meditation, breathing, and physical therapy.

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Washington D.C. [USA], Jul 20 (ANI): When it comes to faring well after chemotherapy, a cancer patient's social interaction matters, according to a recent study.

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New radiotherapy find offers hope to cancer patients

Updated: Jul 20, 2017 10:06 IST     

Washington D.C. [USA], Jul 20 (ANI): An exciting discovery in the cancer treatment is having dramatic results.

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New strategy could yield more effective flu shots

Updated: Jul 20, 2017 09:46 IST     

Washington D.C. [USA], Jul 20 (ANI): A boosting skin vaccination with a biodegradable microneedle patch and protein constructed from sequences of influenza virus subtypes could improve the effectiveness of conventional influenza vaccines, according to a recent study.

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Revealed! Best time to sleep to wake up feeling refreshed

Updated: Jul 20, 2017 04:09 IST     

London [UK], July 20 (ANI): The secret of a good night's sleep has finally been unveiled!

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Anxiety drug may help you with fear of social rejection

Updated: Jul 19, 2017 14:22 IST     

Washington D.C. [USA], July 19 (ANI): A team of researchers has found that low doses of anxiety disorder-reducing drug can help highly-anxious people overcome their fear of being over-looked and rejected socially.

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