Essential reference for engineers and scientists - a concise, authoritative guide to units, conversions, and fundamental data in one enduring volume.
This Smithsonian edition compiles detailed tables, standards, and conversion factors that support precise calculations across mechanical, electrical, thermal, optical, and other disciplines. It blends foundational units with practical data, making it a reliable desk reference for everyday work and planning.
- Fundamental and derived units with ready-to-use conversion factors.
- Standards and systems for length, mass, time, temperature, and electrical measures.
- Tables covering densities, viscosities, thermal conductivity, barometric data, and more.
- Guidance on dimensional analysis, units across U.S. customary, metric, and imperial systems.
Ideal for readers who need a portable, durable reference to support accurate measurement, engineering calculations, and data-backed decision making.