In The News

Sound Postcard

Posted: July 6, 2022

Pistol Shrimp: The Super-Powered Crustacean, July 16, 2018

Credit: Michael at: https://aquariumbreeder.com/ 

What is the loudest animal in the world? Most of us might think of sperm whales (233 dB), blue whales (188 dB at 160 km) or howler monkeys (88 dB), but the pistol and mantis shrimp’s broadband claw snap has been measured at up to 219 dB, making them the loudest animal for their size (less than two ounces). Using cavitation bubbles, which also emit sonoluminescence, these shrimp direct 7232 °F, 100 km/hr sound bubbles (called burbles) toward their prey, usually centimeters away.  

Cavitation, per Merriam-Webster, is the formation of partial vacuums in a liquid by a swiftly moving solid body (such as a propeller) or by high-intensity sound waves

To learn more: 

https://use-jp.org/USE2010/proceedings/USE09/pdf/1P6-8.pdf

https://www.sciencefocus.com/nature/whats-the-loudest-animal-relative-to-its-size/

https://cosmosmagazine.com/earth/climate/snapping-shrimps-silenced-as-seas-acidify-study/

http://thescienceexplorer.com/universe/how-sound-turned-light

https://indie88.com/fact-check-is-the-sperm-whale-the-loudest-animal-on-earth/

 

2023 Conference Abstracts 

Posted: July 6, 2022

We are now accepting abstract submissions for the 2023 Annual Conference, in Jacksonville, FL, Feb 9-11, 2023. Don't miss your chance to present at the in-person NHCA 2023 Conference. Submissions are due by August 1, 2022. Submit your abstract here.

 

 

Mark your Calendars for our next NHCA Presidential Trio Town Hall

Posted: July 6, 2022

Come and hear updates about YOUR organization's strategic plan and the NHCA narrative, meet the new Executive Director, and interface directly with NHCA leadership.

When: Tuesday August 9, 2022. 10:00 a.m. MT/11:00 a.m. CT/12:00 p.m. ET

A link will be sent out later. See you there!

 

NHCA Bylaws Vote

Posted: June 28, 2022

As part of our strategic goal to “optimize governance,” your Executive Council has been hard at work revising our current structure to improve processes, increase efficiency, and strengthen our impact. Earlier this year, the Executive Council agreed to bring the proposed bylaws changes to NHCA membership for a vote. All five motions passed in the member vote.

 

New NHCA Director of Membership

Posted: June 28, 2022

Please join me in recognizing Richard Stepkin's service as past Director of Membership. Please also join me in welcoming Sharon Sandridge as the new Director of Membership, who will be serving out the remainder of the term. She will work closely with the Members Services Council and the Executive Council toward our strategic goal to “broaden member value”.

 
<< first < Prev 1 2 3 4 5 6 7 8 9 10 Next > last >>

Page 7 of 46