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.
A duma (Ð´ÑÐ¼Ð°) is a Russian assembly with advisory or legislative functions. The term comes from the Russian verb Ð´ÑÐ¼Ð°ÑÑ (dumatâ) meaning to think or to consider. The first formally constituted duma was the State Duma introduced into the Russian Empire by Tsar Nicholas II in 1906.