Small set of markers for sections or lists in presentations and other kind of infographics section tool bio-hazard Section markers, schematic
This schematic picture was often used in posters/presentations as section marker screwdriver tool schematic Screwdriver schematic
Circuit symbol for normally closed (NC) contact. engineering electrical circuit RSA IEC Closed Contact (NC Contact)
One quarter of a cycle of sinusoidal wave. This can be used to build complete sine waves. engineering electrical circuit RSA Quarter Sine Wave
A divided glass cell useful for fuel cell testing. fuel cell apparatus experiment Glass Fuel Cell Schematic
This spanner was often used in presentations and poster as a section or list marker attenuating the main points. Clear view and clear message spanner schematic mechanic Schematic spanner
symbol drawing lamp electric neon circuit schematics Neon Lamp Schematics clip art neon lamp schematic Neon Lamp Schematics clip art
SOURCE: Шеляга, В.В., Глоточкина, А.Д., Платонова, К.К. (1972). Военная психология. Москва. schematic perception eye and ear physiology and psychology Auditory and Visual Perception Schema