Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
2014 Silver Medal Award
AWARD CITATION
For leading the NIST effort to redefine the SI unit of mass in terms of constants of nature rather than a physical artifact known to change with time.
INDIVIDUAL AWARD
Stephan Schlamminger
Supervisory Physicist
Physical Measurement Laboratory