Multi-scale research refers to the study of systems or phenomena at multiple levels of organization or resolution. This approach involves analyzing and understanding the interactions and relationships between different scales, from the atomic level to the global level. Multi-scale research is important in various fields such as physics, biology, engineering, and environmental science, as it allows for a more comprehensive and integrated understanding of complex systems. Researchers in this area often use a combination of experimental, theoretical, and computational methods to study phenomena across different scales and to uncover emergent properties that arise from the interactions between scales.