It is one of the oldest and broadest of the engineering disciplines. The mechanical engineering field requires an understanding of core areas including mechanics, kinematics, thermodynamics, materials science, structural analysis, and electricity.
Dura mater. Dura mater (UK /ËdjÊÉrÉ ËmeÉªtÉr/ or US /ËdÊÉrÉ ËmÃ¦tr/), or dura, is a thick membrane that is the outermost of the three layers of the meninges that surround the brain and spinal cord. It is derived from mesoderm. The other two meningeal layers are the arachnoid mater and the pia mater.
The dura mater [Latin: 'tough mother'] (also rarely called meninx fibrosa or pachymeninx) is a thick, durable membrane, closest to the skull. It consists of two layers, the periosteal layer which lies closest to the calvaria, and the inner meningeal layer which lies closer to the brain.