Mechanical Engineering: Data Sources & Tools

The U.S. Department of Energy's premier laboratory for renewable energy and energy efficiency research, development and deployment.

The Bureau of Transportation Statistics (BTS), as part of the United States Department of Transportation, compiles, analyzes, and makes accessible information on the nation's transportation systems; collects information on intermodal transportation and other areas as needed.

A large collection of physiological and clinical data and related open-source software.

Computation knowledge engine covering a variety of subject areas including mathematics, statistics and data analysis, electrical engineering, control systems, and computer science.

Has online tools and calculators for unit conversion, turbulence properties and more.

Readily convert over 1,000 units in over 95 science and engineering properties.

Conversion calculator's for all kinds of units, commonly used ones in science and engineering, including acceleration, density, force, power and more.

Circuit Lab are making it easier for engineers, students, and hobbyists to design, analyze, build, and share circuits.Electronic circuits are everywhere: from the watch on your wrist, and the fuel injection controller that powers your car, to the ballast driving the fluorescent lights above your desk. Circuit Lab are building the tools to help bring those products from concept to reality faster and easier — and perhaps even make the process more fun.