The International System of Units (SI)

The International System of Units (SI) is a standardized system for measuring quantities like length, mass, time, and temperature worldwide. It ensures consistency and accuracy in scientific, technical, and everyday measurements. SI units are based on universal constants, such as the speed of light or the fundamental charge of an electron, providing precise and reproducible standards. Common units include the meter for length, kilogram for mass, second for time, and kelvin for temperature. This system allows different countries and industries to communicate and collaborate effectively with shared measurement standards.