sobota, 30 listopada 2013

The incredible physics of the archerfish, nature's aquatic sniper

The incredible physics of the archerfish, nature's aquatic sniper Lurking just beneath the surface of estuaries across many parts of Asia are archerfish, natural-born assassins who overcome a shocking number of challenges as they shoot targeted streams of water at nearby insects, knocking them down into the water where they become easy dinner targets. Wired takes a look at the seemingly impossible physics of the archerfish's weapon of choice, from distorted optics (have you ever looked up from the bottom of a pool?), to the effects of gravity, to a clever tactic that the creatures use to increase the speed of their aquatic bullet as it approaches its target. ...








via Tech News Headlines - Yahoo! News http://www.theverge.com/2013/11/30/5160710/the-incredible-physics-of-the-archerfish-natures-aquatic-sniper

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