複雜系統之簡介(梁鈞泰) - 中研院物理研究所- Academia Sinica

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1. Structure of legs Water dropet on a leg θ=168 152 dyn The wax extracted from the leg of striders has a contact angle θ=105 . For length L=5mm, σ=70 dyn/cm: F= 2Lσ cosθ ~20 dyn.
Looking closely •SEM scans reveal fine structures of leg: oriented setae (needle-shaped hair) of diameter hundreds nm to 3 µm, length 50µm, at angle 20 from axis •Moreover, there are elaborate nanoscale grooves on a seta 20 µm Trapping of air by setae and nanogrooves provides cushion for the leg from getting wet, and enables the insect to float. 200 nm
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複雜系統之簡介(梁鈞泰) - 中研院物理研究所- Academia Sinica

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