Lecture
This lecture introduces the science of materials, focusing on the structure of materials. It covers atomic bonds, states of matter, crystalline structures, and indexing of crystal planes and directions. The lecture explains the different states of matter, such as solid, liquid, and gas, and how materials can exist in multiple states based on temperature and pressure. It also delves into the concepts of amorphous and crystalline solids, the arrangement of atoms in crystals, and the classification of crystals based on symmetry. The session concludes with a preview of upcoming topics on crystallography and ceramic structures.