The National Institute Of Standards And Technology

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to accurate and uniform measurements throughout the scientific community, industry, and commerce. In 1972, for example, agency scientists developed a helium-neon gas-laser technique that for the first time gave the precise measurement of the speed of light as 299,792.45 km/sec (186,282.396 mi/sec).
The NIST also cooperates with public and private organizations to develop technological standards and test methodologies by conducting research on the properties of materials that are needed by industry, commerce, educational institutions, and government. This research leads to improved methods of standardizing measurements and collecting data. One of the agency's activities is to relate the physical and chemical properties of materials to their behavior and their interaction with their environments; major contributions have been made in fire and motor-vehicle safety. In the 1970s the agency became involved in conserving energy in the home, office, and industry; measuring environmental ...

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