Differences

This shows you the differences between two versions of the page.

--- when_nature_inflates [2008-02-16 21:45] – 62.166.51.71
+++ when_nature_inflates [2010-11-24 12:53] – 87.210.211.132
@@ Line 93: / Line 93: @@
 Photos by: Mnolf, Date: 30.03.2004: License: GFDL
 Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts.
+**Snapping shrimp make flashing bubbles**
+The cavitation bubbles created by shrimp in stunning their prey have some surprising properties.
+Snapping shrimp produce a loud crackling noise1, that is intense enough to disturb underwater communication. This sound originates from the violent collapse of a large cavitation bubble generated under the tensile forces of a high-velocity water jet formed when the shrimp's snapper-claw snaps shut. A short, intense flash of light is emitted as the bubble collapses, indicating that extreme pressures and temperatures of at least 5,000 K must exist inside the bubble at the point of collapse. We have dubbed this phenomenon 'shrimpoluminescence' — the first observation, to our knowledge, of this mode of light production in any animal — because of its apparent similarity to sonoluminescence the light emission from a bubble periodically driven by ultrasound.
+Source: Nature 413, 477-478 (4 October 2001) | doi:10.1038/35097152; Detlef Lohse1, Barbara Schmitz2 & Michel Versluis1
+The Amazing Killer Pistol Shrimp: http://www.youtube.com/watch?v=DeFUO2F7Gvw&NR=1