William Weber Coblentz was an American physicist notable for his contributions to infrared radiometry and spectroscopy.
William Coblentz in 1922
Coblentz at the 1910 Fourth Conference International Union for Cooperation in Solar Research at Mount Wilson Observatory
Spectrometer used at Cornell University by W. W. Coblentz
Marker for the Coblentz family
National Institute of Standards and Technology
The National Institute of Standards and Technology (NIST) is an agency of the United States Department of Commerce whose mission is to promote American innovation and industrial competitiveness. NIST's activities are organized into physical science laboratory programs that include nanoscale science and technology, engineering, information technology, neutron research, material measurement, and physical measurement. From 1901 to 1988, the agency was named the National Bureau of Standards.
Chart of NBS activities, 1915
A mass spectrometer in use at the NBS in 1948
Advanced Measurement Laboratory Complex in Gaithersburg
Aerial view of the Gaithersburg campus in 2019