Article
Refine
Year of publication
Institute
- Fachbereich Energietechnik (361) (remove)
Language
- English (361) (remove)
Document Type
- Article (361) (remove)
Keywords
- Earthquake (4)
- Algal Turf Scrubber (1)
- Algal–bacterial bioflm (1)
- Antibias (1)
- Artificial intelligence (1)
- Behaviour factor q (1)
- Biogas (1)
- Cardiovascular MRI (1)
- Circular bioeconomy (1)
- Civil engineering (1)
Beryllium doped low-temperature-grown MBE GaAs: material for photomixing in the THz frequency range
(2000)
Lightning protection design of a renewable energy hybrid-system without power mains connection
(2001)
Control of Aharonov-Bohm oscillations in a AlGaAs/GaAs ring by asymmetric and symmetric gate biasing
(2001)
Layer Deposition I
(2003)
Comparison of solar hot water systems in solar settlements - decentralized or centralized systems?
(2004)
The sandfish (Scincus scincus) is a lizard having the remarkable ability to move through desert sand for significant distances. It is well adapted to living in loose sand by virtue of a combination of morphological and behavioural specializations. We investigated the bodyform of the sandfish using 3D-laserscanning and explored its locomotion in loose desert sand using fast nuclear magnetic resonance (NMR) imaging. The sandfish exhibits an in-plane meandering motion with a frequency of about 3 Hz and an amplitude of about half its body length accompanied by swimming-like (or trotting) movements of its limbs. No torsion of the body was observed, a movement required for a digging-behaviour. Simple calculations based on the Janssen model for granular material related to our findings on bodyform and locomotor behaviour render a local decompaction of the sand surrounding the moving sandfish very likely. Thus the sand locally behaves as a viscous fluid and not as a solid material. In this fluidised sand the sandfish is able to “swim” using its limbs.