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- Orientation and connection by appropriate form
- Torsion-loaded helix elements
- Application of balls or rollers
- Wedge, double wedge, tapered rings etc.
- Temporary connection with squeezed sand, granules, balls etc.
- Application of brushes, hook and loop fastenings (Velcro)
- Application of sheet and spring packages
- Changing the form of one sheet hyperboloid
- Changing the centre of gravity or axis of rotation
- Mobius band
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Geometric effects