Navigation Links
Tough yet stiff deer antler is materials scientist's dream
Date:11/26/2009

one?

The team prepared 40 mm long blocks of dry antler and wet deer femur and measured the amount of force needed to bend the blocks to find out how flexible the materials were. Even though most bones are relatively brittle and inflexible when dry, the team found that the dry antlers are almost as stiff as wet bone: which is ideal for weapons that have to survive a lengthy pushing contest after the initial clash.

But how 'tough' was the antler? How much energy could it absorb in the initial crash? Applying a force to the middle of the blocks of bone and gently increasing it until the bone broke, the team plotted a curve of the bending force against the amount that the bone bent. Calculating the amount of energy that the antler could absorb before shattering, Currey found that the tissue was incredibly tough: 2.4 times tougher than normal wet bone. And when Currey measured the amount of energy that the dry antler could absorb in an impact, he was surprised and pleased to see that it could survive impacts 6 times greater than the impacts that shattered wet femur. The dry antler was tougher than wet bone and ideally suited to survive the stags' initial clash.

So dry deer antlers are simultaneously stiff, yet tough, making them perfectly suited to their role as a weapon. And the deer seem to have solved a problem that has puzzled engineers for decades. 'It is very difficult to make anything that is both stiff and tough,' says Currey, but it seems that duelling deer solved the problem eons ago.


'/>"/>

Contact: Kathryn Knight
kathryn@biologists.com
44-122-342-5525
The Company of Biologists
Source:Eurekalert

Page: 1 2

Related biology news :

1. Canadians finding it tough to shake the salt habit
2. No comfort in comfort foods during tough economic times, says Moore School of Business study
3. Broecker: What we need are tougher measures against climate change
4. Two-pronged model could help foil tough cystic fibrosis infections
5. Scientists create tough ceramic that mimics mother of pearl
6. Restoring fish populations leads to tough choice for Great Lakes Gulls
7. Wildlife Conservation Society study finds seasonal seas save corals with tough love
8. University of Oregon researcher finds that on waters surface, nitric acid is not so tough
9. NIEHS awards Recovery Act funds to focus more research on health and safety of nanomaterials
10. UTSA Physics Department receives $2.7 million to study nanomaterials
11. NSF Emerging Frontiers program supports development of smart materials based on study of fish
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:9/18/2014)... world, are the ideal animal in which to study ... the ocean into tens of thousands of freshwater streams ... skeleton to adapt to the new environment. , Breeding ... have turned up one of the genes that controls ... that gene,s regulation in a freshwater population is associated ...
(Date:9/18/2014)... up to 400 kilometres in search of a home, which ... Clownfish spend their entire adult lives under the protection of ... open ocean, says study co-author, Dr Hugo Harrison from the ... at James Cook University. , "In the past we haven,t ... rare glimpse into how far they can swim, crossing large ...
(Date:9/17/2014)... From accessible and affordable health care to reproductive ... depend on the ability of people to identify ... openly and respectfully, and find the most defensible ... practices to support these societal conversations?, The Hastings ... of Bioethical Issues have teamed up to publish ...
Breaking Biology News(10 mins):Counting fish teeth reveals regulatory DNA changes behind rapid evolution, adaptation 2Counting fish teeth reveals regulatory DNA changes behind rapid evolution, adaptation 3Nemo's epic journey to find a new home 2Why bioethics literacy matters 2Why bioethics literacy matters 3
... a new imaging system that allows them to see ... work, which could help scientists understand how precancerous mutations ... to pinpoint the number and location of mutant cellscells ... the researchers worked with mouse pancreatic cells. "Understanding ...
... When individuals infected with HIV become infected with a ... can exchange genetic information, creating a third, recombinant strain ... presence of multiple viral strains, called superinfection, frequently leads ... Now a study from the Partners AIDS Research ...
... from four leading cancer centers have confirmed that an analysis ... which lung cancer patients will have the worst survival. The ... help determine who needs more aggressive treatment. The study, ... Medicine . The researchers looked at 442 lung ...
Cached Biology News:MIT researchers offer glimpse of rare mutant cells 2Viral recombination another way HIV fools the immune system 2Gene panel predicts lung cancer survival, study finds 2
(Date:9/18/2014)... DALLAS , Sept. 18, 2014 /PRNewswire-iReach/ -- ... and China Acetic Acid Industry" and "2014 Deep ... Industry" reports to its research database. ... 2014 Deep Research Report on Global and China ... research report on China ...
(Date:9/18/2014)... Texas (PRWEB) September 18, 2014 ... Chancellor John Sharp, Texas A&M Health Science Center ... U.S. Department of Health and Human Services (HHS), ... dedicated a national pandemic influenza vaccine manufacturing facility ... as an anchor for the Texas A&M Biocorridor ...
(Date:9/18/2014)... Sept. 18, 2014 Research and Markets ... Human Albumin Industry Report 2014" report to their ... Report 2014 is a professional and in-depth study on ... The report provides a basic overview of ... structure. The human albumin market analysis is provided for ...
(Date:9/18/2014)... -- MEI Pharma, Inc. (Nasdaq: MEIP ), an oncology ... cancer, announced today that Daniel P. Gold , Ph.D., ... NewsMakers in the Biotech Industry conference on Friday, September ... Broadway Hotel & Conference Center in New York ... accessed at www.meipharma.com . A replay will be available ...
Breaking Biology Technology:Acetic Acid Market & Sodium Stannate Industry (China, Global) Research Report 2Acetic Acid Market & Sodium Stannate Industry (China, Global) Research Report 3Acetic Acid Market & Sodium Stannate Industry (China, Global) Research Report 4Texas A&M Dedicates National Pandemic Influenza Vaccine Manufacturing Facility, on Track for 2016 Start-Up Phase 2Texas A&M Dedicates National Pandemic Influenza Vaccine Manufacturing Facility, on Track for 2016 Start-Up Phase 3Texas A&M Dedicates National Pandemic Influenza Vaccine Manufacturing Facility, on Track for 2016 Start-Up Phase 4Global Human Albumin Industry Report 2014 2Global Human Albumin Industry Report 2014 3MEI Pharma To Present At BioCentury's NewsMakers Conference 2MEI Pharma To Present At BioCentury's NewsMakers Conference 3
... that are trying to justify RFID investment wholly on ... and shrinkage in their supply chain are merely deluding ... opportunities in these areas, it means that gross inefficiencies ... achieve major improvements even without applying RFID. , ,The ...
... group of business and technology leaders is asking Wisconsin ... state funds for the Biomedical Technology Alliance ... and private industry in southeastern Wisconsin. , ,The funding ... margin of 15-1, and endorsed by the Doyle administration, ...
... Inc., has appointed Michael Eleftheriou as its president ... of experience in the information technology sector, had a ... as president of its Systems Integration business. He has ... and the Middle East. , ,Since 2002, Eleftheriou has ...
Cached Biology Technology:The key to finding RFID's ROI 2The key to finding RFID's ROI 3The key to finding RFID's ROI 4Budget axe could cut SE Wisconsin tech alliance funding 2Budget axe could cut SE Wisconsin tech alliance funding 3
Collected from sexually mature, mixed sex, mixed breed cats. Physiochemical constituents are measured to ensure lot-to-lot consistency....
Complete cell culture media with cytokines...
... pump available in single head (T2-04 SH) or ... in portable air and gas applications. Delivering flow ... in environments where DC operation, high performance, low ... Offers ultra-compact size, long life, and high ...
... linear motor and ballscrew technologies, ... Cartesian solutions that include all ... and motors., , XY ... through high-flex cabling for power, ...
Biology Products: