Tippets: DIY Slinky Indicator, Studying Archerfish
- Using items you probably have at home, Johnny Spillane teaches you how to make a “slinky indicator,” via Gink & Gasoline.
- The archerfish hunt insects by shooting a jet of water at the bug, making it fall into the water. New research from the University of Bayreuth focused on training archerfish so the scientists could analyze the water jet, which they found could be controlled and sped up or slowed down by the fish. Via The New York Times.
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