Google+

The Materials Of What Shrimp Are Made Of Help Engineers

Engineers at the University of California, Riverside are looking to nature for inspiration in creating stronger vehicle frames and body armor. They may have found a key structure in the club-like claw of the sea floor-dwelling mantis shrimp, according to a report published online this week in the journal Science.

The 4-inch crustacean, also known as a stomatopod, uses its claw with the deadly speed of a 22-caliber bullet to crack open everything from crab exoskeletons to driver’s thumbs to aquarium glass.

“This club is stiff, yet it’s light-weight and tough, making it incredibly impact tolerant and interestingly, shock resistant,” said David Kisailus, the study’s co-author and an assistant professor at UC Riverside’s Bourns College of Engineering. “That’s the holy grail for materials engineers.”

The shrimp, which molts and replaces its claws every few months, uses its deadly appendage to strike its prey of mollusks and crabs. Every iteration of the claw strikes tens of thousands of times in an attempt to crack open the hard shells and exoskeletons of its victims.

In examining these claws, researchers found that the shrimp can fire them at speeds of 75 feet (23 meters) per second and with 200 pounds (91 kg) of force. An amazing feat considering the creature’s modest weight class and length. These hooks and jabs also cause a process called cavitation, which shears the water and creates bubbles that strike the target with about half the force of the initial strike.

“We have been studying these other organisms when we should have been studying this guy because he literally eats them for breakfast,” Kisailus said.

The researchers found that the mantis shrimp’s claw is a highly complex structure, comprised of three specialized regions that work together to create a structure tougher than many engineered ceramics.

Using electron microscopy and other techniques, Kisailus and his colleagues delved deep into the claw’s structure.

“The team we put together was excellent: having experts in zoology, mechanics, modeling and synchrotron x-ray characterization gave us multiple views of the same problem, making it a very thorough investigation,” Kisailus said.

The first region, located at the impacting surface, contains a high concentration of a mineral called hydroxyapatite, also found in human bones, which supports the impact when the mantis shrimp strikes.

Further inside, highly organized and rotated layers of chitin fibers are stacked at different orientations and act as a shock absorber. The intricate structure makes long fissures in the claw difficult, as any crack that does form has to change directions multiple times to progress further into the appendage.

Finally, the club is encapsulated on its sides by tightly oriented chitin fibers, which wrap around the claw. These fibers act like tape around a boxer’s fingers, keeping the appendage compact during these high velocity impacts.

Using funding from the Air Force Office of Scientific Research to continue work with the shrimp, researchers said they want to use their research to design materials inspired by the claw’s structure. Kisailus said the potential applications for structural materials they develop are widespread because the final product could be lighter and more impact resistant than contemporary products.

Source:Redorbit

 

Entertainment

Mark Wahlberg Vehicle Revisits BP Oil Spill

  Deepwater Horizon Blu-Ray Review by Kam Williams Mark Wahlberg Vehicle Revisits BP Oil Spill On April 20, 2010, the Deepwater Horizon drilling rig, located 41 miles off the coast of Louisiana, exploded when high-pressure methane gas blew out the drill pipe. 11 members of the crew perished in the ensuing fiery inferno which engulfed the platform. The accident also caused the worst oil spill in U.S. history, with over 200 million … [Read More its Good for You.....]

Books

Concerned Father Creates Children’s Book Series To Help Make Learning About Valuable Black History Information Fun Again

  Concerned Father Creates Children's Book Series To Help Make Learning About Valuable Black History Information Fun Again   Orlando, FL (January 16, 2017) – EOTO Books & Publishing announced today the immediate release of “The Christopher OluFela Series of Books for Kids” written by father and creative children’s picture book author Lee Chavous. The books take a unique approach to inform young readers of a rich African American … [Read More its Good for You...]

Art

The Day After the Day Of

  The Day After the Day Of by Paul Ilechko   The sky sheds its tears. This morning is the morning of the day after. The day of mourning, the day after the day of.  I beseech the sky to shed tears in order to wash away the tears on my face.   This is the first day of the time after. This is the beginning of a new time, the days of pain, the days of sorrow. We are in mourning. The sky looks down and sheds its tears for … [Read More its Good For You...]

Real Estate

History Being Sold to the Highest Bidder

  History Being Sold to the Highest Bidder by Amy Lignor   For the longest time, scientists and archaeologists have been confused and bemused by various discoveries they’ve unearthed that offer little or no explanation as to the who, what, and why of the people who created these things or left them behind. Even now, in 2017, there are discoveries being studied; stories that were once legends now have actual bits of proof being found that … [Read More its Good for You.....]

Lifestyle

Groundswell for Chazelle!

  Damien Chazelle The “La La Land” Interview with Kam Williams Groundswell for Chazelle! Damien Chazelle wrote and directed the Academy Award-winning Whiplash which landed five Oscar nominations, including Best Picture and Best Adapted Screenplay for Chazelle. The movie won a trio of Oscars in the Film Editing, Sound Mixing and Supporting Actor (J.K. Simmons) categories. In 2013, his short film of the same name won the Short Film … [Read More its Good for You...]

Outdoors

Carolina Skiff at Miami’s Favorite Boat Show

  Carolina Skiff at Miami's Favorite Boat Show By Craig Lamb You might say “new” is a reoccurring theme of Miami’s favorite boat show coming up soon. A new location with hundreds of new boats, including never-before-seen models being debuted by Carolina Skiff, is a great way to kick off the season. Few boat shows offer buyers the chance to see new boats where they ultimately belong—floating on the water in a real time setting. You can … [Read More its Good for You...]

Sports

Can Troy Aikman Win MVP?

  Can Troy Aikman Win MVP? by Amy Lignor   What a strange title for an article, aye? Of course the ‘old man’ of the Dallas Cowboys can’t win MVP. Troy Aikman was an elite QB, with three Super Bowl rings to prove that fact. However, Aikman hasn’t actually suited-up since leaving behind his Cowboys uniform in 2001. The number one overall draft pick in 1989, Aikman was the MVP of Super Bowl XXVII, and was elected to the Pro Football … [Read More its Good for You...]

Business

Spotlight on Africa

  Spotlight on Africa by Amy Lignor   As the year winds down and comes to a close, it is Africa that is receiving some headlines that call for many changes and improvements to be made in the coming years. It was Ambassador Amina Mohamed (Nairobi, Kenya) that spoke recently about the African Union Commission (AUC) and how the group must provide leadership in the coming years. After all, the nation of Africa is, in truth, the cradle … [Read More its Good for You...]

Travel

The Grandest New Year’s Celebrations Around the World

    The Grandest New Year’s Celebrations Around the World by Amy Lignor   Oh, yes…there are many, many places to travel in order to ring in that New Year in style. Some people have already stated that they see 2017 becoming one of the ‘best of the best’ years the world has ever seen – from technology to business to education to even “going greener” – heck, green has even been chosen as the top color of 2017. But where should you … [Read More its Good for You...]

Green Living

2017 Will Be Green!

    2017 Will Be Green! by Amy Lignor   This statement is not a “hopeful” imagination talking; it is actually quite true. Very recently the Pantone Color Institute declared that green will most definitely be THE color for 2017. This is a company that calls themselves the “global color authority,” and states that everything from high fashion to trends will be on the green path throughout next year. So…when we look at a “green” … [Read More its Good for You...]