ASTM International is an international standards organization that develops and publishes technical standards for a wide range of materials, products, systems, and services.

A composite material is a material made from two or more distinct materials that, when combined, create a new material with properties superior to those of the individual components.

Engineering is the application of scientific, mathematical, economic, social, and practical knowledge to invent, innovate, design, build, maintain, research, and improve structures, machines, tools, systems, components, materials, processes, solutions, and organizations.

A heart valve is a part of the human heart that controls blood flow by opening and closing as the heart pumps.

Infrared is a type of electromagnetic radiation, which lies beyond the visible spectrum of light.

A locomotive is a type of railway vehicle that provides the power and traction for a train.

A medical device is any instrument, apparatus, machine, implant, software or similar article that is used to diagnose, treat, monitor or prevent a disease or condition in humans.

Neutrons are subatomic particles that are found in the nucleus of an atom.