An Earthquake is a sudden tremor or movement of the earth's crust, which originates naturally at or below the surface.The word natural is important here, since it excludes shock waves caused by French nuclear tests, man made explosions and landslides caused by building work. There are two main causes of earthquakes.n Earthquake is a sudden tremor or movement of the earth's crust, which originates naturally at or below the surface.
Definition of TANGRAM. : a Chinese puzzle made by cutting a square of thin material into five triangles, a square, and a rhomboid which are capable of being recombined in many different figures.See tangram defined for kids. ADVERTISEMENT.efinition of TANGRAM. : a Chinese puzzle made by cutting a square of thin material into five triangles, a square, and a rhomboid which are capable of being recombined in many different figures. See tangram defined for kids. ADVERTISEMENT.
Synchronous Graphics RAM (SGRAM) is a clock-synchronized DRAM that is relatively low-cost video memory. SGRAM is single-ported memory, but it can act like dual-ported memory by opening two memory pages at the same time, instead of just one. Window RAM (WRAM) is unrelated to Microsoft Windows. It is a very high-performance VRAM that is dual-ported and has approximately 25% more bandwidth than VRAM, but costs less.