Supplementary information
From the following article:
David L. Hu & John W. M. Bush
Nature 437, 733-736(29 September 2005)
doi:10.1038/nature03995
Supplementary Video S1
Many water-walking insects are incapable of climbing menisci using their traditional means of propulsion. Here we see an infant water strider trying in vain to row up a meniscus. Video played at 1/20 real time. Body length, 1 mm.
Supplementary Video S2
Here we see Mesovelia attempting to climb a meniscus from right to left. In its first attempt, it tries in vain to scamper up using its traditional running gait. In its second attempt, it locks itself into a fixed posture, pulling up with its front and rear appendages, and thus glides up the meniscus, seemingly effortlessly. Video played at 1/20 real time. Body length, 2 mm.
Supplementary Video S3
We see here Mesovelia climbing a meniscus from right to left. The surface deflections are indicated by the shadows cast beneath the insect. Where it pulls up (with its front and rear appendages), the surface deflection focuses light into bright spots; where it pushes down (with its middle legs), light is diffused, resulting in dark shadows. Video played at 1/20 real time. Body length, 2 mm.
Supplementary Video S4
We see here the meniscus-climbing technique of the beetle larva, a terrestrial creature not suited to walking on water. As it is circumscribed by a contact line, it can manipulate the free surface by arching its back. In so doing, it generates a torque that twists and aligns it perpendicular to the meniscus, and a force that subsequently drives it up the meniscus. Videos played in real time. Body length, 6 mm.
Supplementary Video S5
We see here the meniscus-climbing technique of the beetle larva, a terrestrial creature not suited to walking on water. As it is circumscribed by a contact line, it can manipulate the free surface by arching its back. In so doing, it generates a torque that twists and aligns it perpendicular to the meniscus, and a force that subsequently drives it up the meniscus. Videos played in real time. Body length, 6 mm.
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