MeterKilogrammSekunde

MeterKilogrammSekunde refers to the historical Meter-Kilogramm-Sekunde-System (MKS), a system of physical units in which the base units were the metre (m) for length, the kilogram (kg) for mass, and the second (s) for time. This framework, developed in the 19th century, provided a coherent foundation for expressing mechanical and physical quantities and facilitated dimensional analysis.

In the MKS system, many common derived units could be expressed directly from the base units. For example, force is measured in newtons (N), defined as kg·m·s^-2; energy in joules (J), defined as kg·m^2·s^-2; and power in watts (W), defined as kg·m^2·s^-3. The system helped standardize calculations across physics and engineering and influenced the design of measurement standards in laboratories and industry.

Relation to the modern SI system: The Meter-Kilogramm-Sekunde framework is a historical predecessor to the International System of Units (SI). The SI extends the MKS approach by incorporating additional base units (ampere, kelvin, mole, candela) and refining definitions, while preserving metre, kilogram, and second as fundamental quantities. The SI was formally adopted in the mid-20th century and became the global standard in the 1960s and beyond.

Current usage: The term MeterKilogrammSekunde is mainly encountered in historical or educational discussions about metrology. Today, there is no separate SI unit named after this phrase; rather, metre, kilogram, and second remain the core base units, with SI-derived units built from them. The concept remains important for understanding the evolution of measurement standards.