Headline, May 02 2019/ ''' '' THE !WOW!-NEST LAB '' '''

''' '' THE !WOW!-NEST LAB '' '''

LIVE THE WORLD STUDENTS SOCIETY WAY : Live the very !WOW! way : OneShare- Piece-Peace in the great service of Mankind.

Great challenges, for sure, - but also great opportunities lye ahead of us. So help build a better world; a world  based on justice, thinking, acceptance, tolerance, sacrifice, security and the dignity of man. The results are stunning.

''May Almighty God, in his infinite mercy and wisdom, help the students of the entire world, ''prove equal to the task''. AMEEN!

''Stability is established only through random contacts, not local adhesive mechanisms, such as glue or screws,'' Dr. Dierichs said.

Of course, a bird's nest is not entirely random; the builder weaves or places the elements. But what is the universal logic? What is the quintessence of ''the nest state''? Like a bird building a nest, Dr. King hopes that a ''flexibility in thinking'' will let the underlying story emerge.''

He and his collaborators have explored how the materials in the artificial nest pack together, and how the ensemble absorbs energy. So far, they have observed what Dr. King called ''a steady state hysteresis caused by reversible slippage.''

The term ''hysteresis'' is derived from the ancient Greek, meaning ''deficiency'' or ''lagging behind''. Simply put, it describes how a physical system behaves differently depending on what was done to it previously.

Hang two, one-pound weight from a ribber band, then remove one. With only one weight remaining, the band will be still stretched farther than if only one weight had been added in the first place. That is hysteresis. The rubber band is not behaving like an ideal spring; there is an energy loss to the system.

Some thing similar happened with the ''nests'' in Dr. King's plexiglass cylinder. The sticks were slowly compressed to maximum stress, and then released repeatedly. During each cycle, the sticks compressed a little more and then bounced back, but only partway; this was hysteresis happening.

Eventually, for any given skinniness of stick - the aspect ratio, diameter divided by length - the system found its maximum, or state, density.

Then the experimenters smashed the sticks some more, with additional cycles. But their data suggested that hysteresis was still happening. This was unexpected and intriguing : The sticks were at density, and they didn't seem to be rearranging any further in the chamber. The team came to call this  ''steady state hysteresis.''

With computer simulations, they landed on an explanation. The sticks were in fact compressing further, slightly rearranging as one stick slid along another. But this slippage undid itself upon release - ''reversible slippage.'' The nest became an asymmetric spring : stiff when pushed, soft upon release.

The phenomenon might be exactly what the investigators are after : a process that underlies a nest's  machinations and one that should be present in other systems.

These are just preliminary findings, which Dr. King will continue to explore in the lab, and with further simulations by Mattia Gazzola, a mechanical engineer and his Ph.D. student Yashraj Bhosale, at the University of Illinois at Urbana-Champaign's National Center for Supercomputing Applications.

Gr. King also aspires to find birds that are willing to collaborate. Recently he attended a bird biology conference in Britain, in search of advice. A year earlier, he had sequestered cardinals at the Akron Zoo to monitor them as as they built nests, nut they showed little interest in the materials he from the local arts and crafts store.

After he gave his talk, he was approached by Shoko Sugasawa, a research fellow, and Maria Tellos-Ramos, a postdoctoral researcher, in Sue Healy's Cognition in the Wild lab at the University of St. Andrew's in Scotland. They suggested that  zebra flinches might be better candidates.

''Zebbies breed readily in captivity, and they are happy to use a range of materials including paper strips, cotton strings and coconut fibers,'' said Dr, Sugasaw, who is setting up a lab that will film the birds in a breeding cage.

''For Hunter's research, it will be particularly informative to see how different nest materials change the properties of resulting nests.''

With respectful dedication to the Leaders, Grandparents, Parents, Students, Professors and Teachers of the world.

See Ya all prepare and register for Great Global Elections on The World Students Society : wssciw.blogspot.com and Twitter - !E-WOW! - the Ecosystem 2011;

''Exciting - Research'''

Good Night and God Bless

SAM Daily Times - the Voice of the Voiceless


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