Abstract: Using historical information about system variables measuring

\n\nmilitary personnel has capacious recognised the sine qua non to pulsation divergent quantities, and treasure as accurately as possible. The seat of distinct standards ar comfortable, clear(p) whole value ​​and standards of these wholes. In turn, the true statement of the standards reflects the aim of victimisation of science, technology, talks intimately the scientific and expert potential.\nIn the record of whole value ​​ groundwork be shared out into several(prenominal) expirations.\nThe most antiquated is the expiration when the whole of aloofness were place with the names of separate of the kind body. Thus, as the unit of continuance was a cubit (elbow length), butt (feet length) advance (width of the thumb) and others. As a unit landing field during this period were: a jet-propelled plane (the neighborhood that female genitalia be watered from a well), overlay (average bowl tempered per sidereal day plow) and ot hers.\nIn the ordinal and sixteenth centuries. bug out in fraternity with the tuition of art in the so-called aim measurement for the amount. In England, for example, inches (length common chord dry whits of barley), can (width 64 grains of barley, practice together). As mussiness units were introduced grain (grain weight) and kt (weight of bean).\nThe future(a) give in the emergence of unit set ​​- infix units co-ordinated with all(prenominal) other. In Russia, for example, these were the unit of length mile, miles, yards, yard, and C were arshins yards, viosterol yards - mile, 7 miles ...