Related Information and Links

NIST resources

• NIST’s SI Redefinition website
• "Measuring with fundamental constants; how the revised SI will work": A talk by NIST Nobel Laureate Bill Phillips at the November 16 meeting
• "Optical atomic clocks – opening new perspectives on the quantum world": A talk by NIST/JILA scientist Jun Ye at the November 16 meeting
• "How to Weigh Everything from Atoms to Apples Using the Revised SI" : A paper by NIST scientist Jon Pratt
• "Reason and Measurement, Suits and Ties: My Personal Journey to the New SI": A blog by NIST scientist Jon Pratt
• "Proving Our Mettle: NIST and the Boltzmann Constant Olympics": A blog by NIST scientist Michael Moldover

Essays, Scientific Papers and News Stories

• A more fundamental International System of Units (Physics Today)
• An introduction to the New SI (Physics Teacher. This article explains the new SI in order to provide a resource for high school teachers as well as for advanced students already familiar with the pre-2018 SI.)
• A massive change: Nations redefine the kilogram (Washington Post)
• The Kilogram Is Dead. Long Live the Kilogram! (The New York Times)
• Scientists vote to fix the world’s weight-loss problem (Science News for Students)
• The Kilogram Is Dead. Meet the Kilogram 2.0 (HowStuffWorks)
• The world just redefined the kilogram (Vox)

External (non-NIST) Resources

• BIPM SI site
• BIPM SI Revision site
• NPL SI Redefinition site (NPL is the UK's national metrology institute)
• LNE SI Redefinition site (LNE is the French national metrology institute)
• PTB: Research on the new SI (PTB is the German national metrology institute)

* Links are provided for informational purposes only. Their inclusion on this page does not imply recommendation or endorsement by NIST.

 Resources for Applicants

• Grants.gov applicant support
• Steps to register as an applicant (grants.gov)
• System for Award Management (SAM.gov) // Applicants must be registered in SAM before submitting an application.