The process of hardening or curing of an amorphous mass (e.g. of caulking) is a process occurring at a micro-level. The molecules of the mass interact more and more strongly over time and eventually form rigid structures.
Sometimes, however, it takes much time for the mass to harden and when eventually it becomes solid, it turns out to be not as strong as desired. What needs to be done ?
Inventors proposed the following way: the amorphous mass (e.g. cement mortar) is mixed with oblong ferromagnetic particles and the mixture gets magnetized by the strong external magnetic field 1. The idea is to replace (or augment) the forming of the rigid molecular structures by forming the rigid macro-structures consisting of these oblong magnetic particles.
Since magnetic particles are macro-objects and the structures they form are macro-structures compared to the molecular structures, this invention provides an example of transition from a solution at a micro-level to a solution at a macro-level !