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Gaithersburg

Ampere: History

The story of the ampere began when a Danish physicist named Hans Christian Ørsted discovered that magnetism and electricity were two aspects...

Ampere: Introduction

The ampere (A), the SI base unit of electric current, is a familiar and indispensable quantity in everyday life. It is used to specify the...

Kelvin: Boltzmann Constant

The Boltzmann constant (k B) relates temperature to energy. It is an indispensable tool in thermodynamics, the study of heat and its...

photonic thermometer on a green background

Kelvin: Future Realization

Although the kelvin is now defined in an entirely new way, the redefinition has little immediate practical consequence for how the unit is...

Kelvin: ITS-90

The triple point of water is a convenient reference point, but it is only one point — albeit the one that provided the old definition of the...

CALL FOR PROPOSALS | 2018 NICE Conference and Expo

May 14, 2018 - July 1, 2018

The NICE Conference 2018 program committee is seeking timely, topical, and thought-provoking presentations for the annual NICE Conference and Expo that will be

Kelvin: Thermodynamic Temperature

In everyday life, we usually think of temperature in terms of comparisons: How hot or cold something is relative to some physical property...

Kelvin: Present Realization

Realizing an SI unit — that is, converting its formal definition into concrete reality — requires following a specific set of methods and...

Kelvin: History

The kelvin is the fundamental unit of temperature. But it came at the end of a journey that began long before thermometers even existed. The...

Kelvin: Introduction

Temperature is one of the most important and ubiquitous measurements in human life. For centuries, we have continuously improved on the...

NICE Webinar: Cybersecurity Education and Training for the Operational Technology Workforce

Wed, Jun 27 2018, 2:00 - 3:00pm EDT

The PowerPoint slides used during the webinar can be downloaded here. Speakers: Marty Edwards

Publications

Journal Publications Marvel, Jeremy A., and Roger Bostelman. "Test Methods for the Evaluation of Manufacturing Mobile Manipulator...

SHIELDED SOLENOIDS

NAME EQUIPMENT BEAMLINE PERFORMANCE INSTRUMENT USED KRONOS 8" OD, 12" L Max 2\theta: 5.0\(^{\circ}\) Measurable Q range: 0.015 Å -1 - 0.12 Å...

Man standing behind big silver equipment

Kilogram: Disseminating the New Kilogram

After the revised SI goes into effect, consumers shouldn't expect to use a Kibble balance to weigh their bananas at the supermarket. But the...

Elizabeth Gentry holding a kilogram test weight in the weights and measures training lab

Kilogram: The Future

Massive Change With the international metrology community providing all the required measurements for updating the SI, the kilogram — along...

Kilogram: Silicon Spheres and the International Avogadro Project

Though measurement scientists chose the Planck constant as the basis for redefinition, other constants of nature can also be used, if for no...

The NIST Do-It-Yourself Kibble Balance (Made with LEGO® Bricks!)

The NIST "D.I.Y." Kibble Balance is a classroom science project that teaches the principles behind the effort to redefine the world's basic...

Kilogram: The Kibble Balance

Named after its inventor, Bryan Kibble at the U.K.’s National Physical Laboratory (NPL), who conceptualized it in 1975, the Kibble balance...

Image of a napkin that has written on it the names of researchers involved in the project and their guesses for the value of Planck's Constant

Kilogram: Mass and Planck's Constant

Max Planck (1858–1947) originally had no idea how widely applicable his notion of the "quantum" would become, including its role in...

Kilogram: The Present

Artifacts and Uncertainty Many units of measure have been defined in terms of artifacts. For example, until 1960 the international...

NSF DEVICES/EQUIPMENT

Neutron spin filter equipment is separated by type. Each has general parameters listed for user reference. Typically, the equipment chosen...

Kilogram: Focus on History

Who decides? On May 20, 1875, 17 different countries signed the Treaty of the Meter (also called the Meter Convention) to establish new...

woodcut. Left: man pouring liquid into a container. Middle: woman with scales. Right: man with fabric and a ruler

Kilogram: The Past

For almost a century and a half, much of the world used a highly polished, golf ball-sized cylinder of a platinum alloy as the international...

INSTRUMENT PRESENTATION SLIDES

Neutron Spin Filters on CANDOR Neutron Spin Filters on MACS Neutron Spin Filters on MAGIK Neutron Spin Filters SANS Neutron Spin Filters on...

National Cybersecurity Center of Excellence Announced That it Was Seeking Technology Vendors to Participate in the Development of an Example Solution for Two Projects

May 4, 2018

The National Cybersecurity Center of Excellence announced that it was seeking technology vendors to participate in the development of an example solution for

NIST Releases for Comment Special Publication 1800-13, Mobile Application Single Sign-On: Improving Authentication for Public Safety First Responders