Jumping on water: Surface tension–dominated jumping of water striders and robotic insects

Author:

Koh Je-Sung12,Yang Eunjin3,Jung Gwang-Pil1,Jung Sun-Pill1,Son Jae Hak4,Lee Sang-Im45,Jablonski Piotr G.46,Wood Robert J.2,Kim Ho-Young35,Cho Kyu-Jin15

Affiliation:

1. Biorobotics Laboratory, Department of Mechanical and Aerospace Engineering, Seoul National University, Seoul 151-744, Korea.

2. School of Engineering and Applied Sciences and Wyss Institute for Biologically Inspired Engineering, Harvard University, Cambridge, MA 02138, USA.

3. Micro Fluid Mechanics Laboratory, Department of Mechanical and Aerospace Engineering, Seoul National University, Seoul 151-744, Korea.

4. Laboratory of Behavioral Ecology and Evolution, School of Biological Sciences, Seoul National University, Seoul 151-742, Korea.

5. Institute of Advanced Machines and Design, Seoul National University, Seoul 151-744, Korea.

6. Museum and Institute of Zoology, Polish Academy of Sciences, Warsaw 00-679, Poland.

Abstract

How to walk and jump on water Jumping on land requires the coordinated motion of a number of muscles and joints in order to overcome gravity. Walking on water requires specialized legs that are designed to avoid breaking the surface tension during motion. But how do insects, such as water striders and fishing spiders, manage to jump on water, where extra force is needed to generate lift? Koh et al. studied water striders to determine the structure of the legs needed to make jumping possible, as well as the limits on the range of motion that avoids breaking the surface tension (see the Perspective by Vella). They then built water-jumping robots to verify the key parameters of leg design and motion. Science , this issue p. 517 ; see also p. 472

Funder

Defense Acquisition Program Administration

National Research Foundation of Korea

Wyss Institute for Biologically Inspired Engineering

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

Reference31 articles.

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