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Creation  Volume 33Issue 4 Cover

Creation 33(4):56
October 2011

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By Design
by Dr Jonathan Sarfati

US $15.00
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Lessons from locust wings



The challenges confronting designers of small robotic aircraft are many. For example, fixed wings, like those used on passenger aircraft, become very inefficient in tiny robotic planes.1 So aeronautical engineers are looking at flapping wings as an alternative.

Researchers at the University of Oxford (UK) and the Australian Defence Force Academy decided to study locust flight because locusts are such efficient flyers.2

“They can fly for a very long time, over long distances with very little energy,” explained lead researcher Dr John Young.3 His team videoed locusts flying in a wind tunnel in order to identify “some of their tricks”.

Unfortunately for the engineers, who had hoped that simple flat wings (i.e. without the locust wings’ veins and corrugations) might suffice for miniature robotic aircraft, the wind tunnel videos and computer simulations revealed a hitherto unrealized design secret. As Science journal summed it up, “The complexity of insect wing venation directly affects the aerodynamics of flight via the intermediary of wing deformation.”4 In other words, the locust’s power and efficiency comes from the wing’s complex construction and in-flight control of wing shape.

“The locust is using the bending and folding of its wings to control its aerodynamics in a very efficient way,” Young said. “The results show that if you want to model the insect you have to get as much detail as you can and build wings that do most of what the insect wings do.” Any artificial wing that isn’t modelled on the “optimised” design of the insect wing is less efficient.

The researchers now plan to use their findings to build their own small robotic aircraft. These aircraft could be used to fly “anywhere you don’t want to send people, but need to navigate a complex environment,” e.g. for defence surveillance purposes or earthquake-affected buildings.

If merely copying locust wing design requires such thoughtful observation and intelligence, what does that say about the designer of those wings? And in other flying insects, too, the inherent design is increasingly obvious to aerodynamics engineers—e.g. the opening line of the locust researchers’ journal paper said (emphasis added):

“Insects achieve remarkable flight performance with a diverse range of complex wing designs.”

Surely, men are “without excuse” (Romans 1:20).

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  1. This can be shown by the Reynold’s Number, Re = ρvl/μ—where ρ is density, v is mean velocity, l is a characteristic length and μ is viscosity. On a small scale, viscous forces dominate, so insects flying through the air are like us swimming through treacle. Return to text.
  2. Young, J., Walker, S., Bomphrey, R., Taylor, G. and Thomas, A., Details of insect wing design and deformation enhance aerodynamic function and flight efficiency, Science 325(5947):1549–1552, 18 September 2009. Return to text.
  3. Phillips, N., Locust wings to inspire flying robots, ABC News in Science,, 18 September 2009. Return to text.
  4. This Week in Science: Locust Wing Aerodynamics, Science 325(5947):1472, 18 September 2009. Return to text.

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Readers’ comments
Hans G., Australia, 3 April 2013

Don't we clever Humans and particular the scientists use God's given material and ideas to 'do' our findings? Without His creation we wouldn't have anything to work with.

Evolution uses someone's material to say there is no-one.

Timothy C., United States, 1 April 2013

It's amazing that some people would rather believe that this came about by millions of years of chance mutations. Even when they're forced to admit that what they think is better is actually worse.

Something to supplement the article:

I read an article (from an evolutionist) about how Natural Selection isn't perfect. Going by that article's arguments, such intricate wing structures shouldn't exist because having wings at all should have been "good enough."

David R., Canada, 1 April 2013

Oh yes, man is without excuse as God's attributes are shown by His marvelous creation.

Louisa H., United Kingdom, 1 April 2013

Thanks to the people at Creation Ministries for writing articles that are faith-building. It is beyond that people don't believe there is a God especially when reading about or looking at nature, it really makes me sad that the devil has got so many people caught in his lie that is evolution.

Praise God for all the things in this world, which He has made.

Chandrasekaran M., Australia, 1 April 2013

Scientists and engineers study carefully locust wings and design and write complex hardware and software, with all technological software bugs, and encode the software into robotic planes. Yet secular free thinkers who believe that locusts evolved over millions of years via big bang(s?) and primordial soup assert that there is no designer who designed efficient locust flyers by encoded information into locust DNA.

The technologies we have achieved as human kind is nothing compared to what the master designer, Jesus Christ, has done in nature – all in six days.

Jill C., New Zealand, 31 March 2013

The more I read and study about God's creation the more I praise His Name and am humbled by His awesomeness. How great is our God.

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