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Insect and robot appendages are autonomously controlled by the air-water interface.
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http://dx.doi.org/10.1126/science.aea0926 | DOI Listing |
Science
August 2025
Robotics Department, University of Michigan, Ann Arbor, MI, USA.
J Phys Condens Matter
July 2018
Electronics and Semiconductors Group, Departamento de Física Aplicada, Universidad Autónoma de Madrid, 28049 Madrid, Spain.
We have bombarded crystalline silicon targets with a 40 keV Fe ion beam at different incidence angles. The resulting surfaces have been characterized by atomic force, current-sensing and magnetic force microscopies, scanning electron microscopy, and x-ray photoelectron spectroscopy. We have found that there is a threshold angle smaller than 40° for the formation of ripple patterns, which is definitely lower than those frequently reported for noble gas ion beams.
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