powders materials
61Samarium — promethium ← samarium → europium ↑ Sm ↓ …
62Discrete element method — A discrete element method (DEM), also called a distinct element method is any of family of numerical methods for computing the motion of a large number of particles of micrometre scale size and above. Though DEM is very closely related to… …
63Fingerprint — This article is about human fingerprints. For other uses, see Fingerprint (disambiguation) …
64Crankset — A Shimano Deore right crankset, showing crank arm, spider, three chainrings and chainring guard …
65Selective laser sintering — An SLS machine being used at the Centro Renato Archer in Brazil. Selective laser sintering (SLS) is an additive manufacturing technique that uses a high power laser (for example, a carbon dioxide laser) to fuse small particles of plastic, metal… …
66Optical mineralogy — A petrographic microscope, which is an optical microscope fitted with cross polarizing lenses, a conoscopic lens, and compensators (plates of anisotropic materials; gypsum plates and quartz wedges are common), for crystallographic analysis.… …
67Dust explosion — A dust explosion is the fast combustion of dust particles suspended in the air in an enclosed location. Coal dust explosions are a frequent hazard in underground coal mines, but dust explosions can occur where any powdered combustible material is …
68Cold compaction — is a process that powder materials is compressed in a temperature region where high temperature deformation mechanics like dislocation or diffusional creep can be neglected. Cold compressing is the most important compaction method in powder… …
69baking — Process of cooking by dry heat, especially in an oven. Baked products include bread, cookies, pies, and pastries. Ingredients used in baking include flour, water, leavening agents (baker s yeast, baking soda, baking powder), shortening (fats,… …
70John D. Hamaker — (1914–1994), was an American mechanical engineer, ecologist, agronomist and science writer in the fields of soil remineralization, rock dusting, mineral cycles, climate cycles and glaciology. Contents 1 Biography 2 Discoveries inventions 3… …
