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when_nature_inflates [2014-09-23 22:34] – [Always inspiring: how cells as a cluster transport matter through their membranes; the electro-luminesent working of jellyfishes; vortexes blown by dolphins just to play with...while scientists crack their heads how do they do this; about spiders spendin cockywhen_nature_inflates [2014-09-23 22:51] – [Always inspiring: how cells as a cluster transport matter through their membranes; the electro-luminesent working of jellyfishes; vortexes blown by dolphins just to play with...while scientists crack their heads how do they do this; about spiders spendin cocky
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-{{:shrimp.jpg?200}} +{{:shrimp.jpg?200}}{{:snapping-shrimp.jpg?350}}{{:pistol_shrimp1.jpg?300}}\\ 
-**Snapping shrimp make flashing bubbles**+Snapping or Pistol-shrimp make flashing bubbles
 The cavitation bubbles created by shrimp in stunning their prey have some surprising properties. 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. 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.
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-{{grntrfg.jpg|grntrfg.jpg}}{{:imagescleaned_washed_fiji_tree_frog_eggs_close-up.jpg?496}}\\ +{{grntrfg.jpg|grntrfg.jpg}} {{:marsh_frog.jpg?350}}\\
-{{:marsh_frog.jpg?250}}\\+
 Green Treefrog:Lang Elliott, all rights reserved\\ Green Treefrog:Lang Elliott, all rights reserved\\
 Fiji_tree_frog_eggs,_close-up. source: www.ryanphotographic.com/vitiensis.htm jpg:\\ Fiji_tree_frog_eggs,_close-up. source: www.ryanphotographic.com/vitiensis.htm jpg:\\
  • when_nature_inflates.txt
  • Last modified: 2014-09-27 18:20
  • by cocky