The Constants They Are A Changin’
NIST News, July 19, 2011 – The electromagnetic force has gotten a little stronger, gravity a little weaker, and the size of the smallest “quantum” of energy is now known a little better. The National […]
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NIST Super-stable Laser Shines in Minivan Experiment
From NIST Tech Beat: May 10, 2011 In a step toward taking the most advanced atomic clocks on the road, physicists at the National Institute of Standards and Technology (NIST) have designed and demonstrated a […]
A Measurement First: NIST ‘Noise Thermometry’ System Measures Boltzmann Constant
Researchers at the National Institute of Standards and Technology (NIST) have for the first time used an apparatus that relies on the “noise” of jiggling electrons to make highly accurate measurements of the Boltzmann constant, […]
Obama Administration’s Budget Request for NIST Includes Critical Science and Technology Investments to Advance U.S. Innovation and Boost Economic Recovery
February 13, 2011, Washington, D.C. – Announced today, President Barack Obama’s fiscal year (FY) 2012 budget submitted to Congress for the U.S. Commerce Department’s National Institute of Standards and Technology (NIST) proposes a funding level […]
End of an Era: NIST to Cease Calibrating Mercury Thermometers
Beginning March 1, 2011, the National Institute of Standards and Technology (NIST) will no longer provide calibration services for mercury thermometers. The cessation of the mercury thermometer calibration program marks the end of an era […]
NIST advances single photon management for quantum computers
The quantum computers of tomorrow might use photons, or particles of light, to move around the data they need to make calculations, but photons are tricky to work with. Two new papers* by researchers working […]
Micro-Feature Dimensional and Form Measurements with the NIST Fiber Probe on a CMM
The NIST fiber probe is a Coordinate Measuring Machine (CMM) probing system intended for diameter and form measurement of micro features and small holes. The Moore M48 CMM at NIST can measure holes down to […]