Bubble rafts
（重定向自Bubble raft）
![Image of a bubble raft (bubble size ~1.5 mm) showing vacancies and an edge dislocation in the bottom right corner.](/Images/godic/202501/02/Bubblerraft20325.jpg")
![A bubble raft showing a close up of an edge dislocation.](/Images/godic/202501/02/Dislocated_Bubble0325.png")
Bubble rafts demonstrate materials' microstructural and atomic length-scale behavior by modelling the {111} plane of a close-packed crystal. A material's observable and measurable mechanical properties strongly depend on its atomic and microstructural configuration and characteristics. This fact is intentionally ignored in continuum mechanics, which assumes a material to have no underlying microstructure and be uniform and semi-infinite throughout.