surface damage
51Lubrication — is the process, or technique employed to reduce wear of one or both surfaces in close proximity, and moving relative to each another, by interposing a substance called lubricant between the surfaces to carry or to help carry the load (pressure… …
52Powder metallurgy — is the process of blending fine powdered materials, pressing them into a desired shape (compacting), and then heating the compressed material in a controlled atmosphere to bond the material (sintering). The powder metallurgy process generally… …
53Marble (toy) — For the stone, see marble. For other uses, see Marble (disambiguation). Hand made marbles from West Africa …
54Duck and cover — For other uses, see Duck and cover (disambiguation). A movie, geared towards children, portraying the act of ducking and covering by a turtle. Duck and Cover was a suggested method of personal protection against the effects of a nuclear weapon… …
55Megasonic cleaning — is a type of acoustic cleaning, related to ultrasonic cleaning. It is a gentler cleaning mechanism, less likely to cause damage, and is used in wafer, medical implant, and industrial part cleaning. Similar to ultrasonic cleaning, megasonics… …
56Architectural reprography — covers a variety of technologies, media, and supports typically used to make multiple copies of original technical drawings and related records created by architects, landscape architects, engineers, surveyors, mapmakers and other professionals… …
57Glass production — Glass is common in everyday life, from glass windows to glass containers. The manufacture of glass for everyday purposes may involve complexity and automation. This article deals with the mass production of glass. Glass container productionGlass… …
58T206 Honus Wagner — The T206 Honus Wagner baseball card is a baseball card depicting Honus Wagner, a dead ball era baseball player who is widely considered to be one of the finest players of all time. [cite book | last=James | first=Bill |authorlink=Bill James|… …
59advanced structural ceramics — Introduction ceramic materials that demonstrate enhanced mechanical properties under demanding conditions. Because they serve as structural members, often being subjected to mechanical loading, they are given the name structural ceramics.… …
60Inflatable boat — An inflatable boat is a lightweight boat constructed with its sides and bow made of flexible tubes containing pressurised gas. For smaller boats, the floor and hull beneath it is often flexible. On boats longer than 3 metres/10 feet, the floor… …
