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Physical Measurement Laboratory

News and Updates

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Calibrating the Calibrator: The National Standard Neutron Source

January 17, 2017

Neutron detectors and sources play critical roles in national defense, homeland security, nuclear power plant control, radiation medicine, petroleum exploration...

NIST Physicists ‘Squeeze’ Light to Cool Microscopic Drum Below Quantum Limit

January 11, 2017

Physicists at the National Institute of Standards and Technology (NIST) have cooled a mechanical object to a temperature lower than previously thought possible...

President Obama Honors Federally-Funded Early-Career Scientists

January 10, 2017

On Jan. 9, 2017, President Obama named 102 scientists and researchers as recipients of the Presidential Early Career Awards for Scientists and Engineers (PECASE...

How Sweet It Is: NIST Metrology and the Maple Syrup Industry

January 4, 2017

NIST is frequently asked to provide unusual, sometimes downright exotic, measurements and calibrations in support of U.S. commerce. But even old hands in the...

Illustration of strontium lattice atomic clock

JILA Atomic Clock Mimics Long-sought Synthetic Magnetic State in Solids

December 21, 2016

Using their advanced atomic clock to mimic other desirable quantum systems, JILA physicists have caused atoms in a gas to behave as if they possess unusual...

How To Tell When a Nanoparticle is Out of Shape

December 20, 2016

Nanoparticles -- those with diameters less than one-thousandth the width of a human hair -- are increasingly prevalent in high technology, medicine, and...

schematic of laser light interacting with a plasmonic gap resonator

NIST Device for Detecting Subatomic-Scale Motion Has Potential Robotics, Homeland Security Applications

December 15, 2016

Scientists at the National Institute of Standards and Technology (NIST) have developed a new device that measures the motion of super-tiny particles traversing...

In Search of ‘Sterile’ Neutrinos

December 9, 2016

Lately, neutrinos – the tiny, nearly massless particles that many scientists study to better understand the fundamental workings of the universe – have been...

Keeping a Sharp Eye on the Environment from Space

December 7, 2016

On Nov. 19, 2016, America’s most advanced weather satellite rocketed into orbit carrying six new, state-of-the-art instruments, dramatically enhanced...

CNST Releases Fall 2016 Edition of The CNST News

November 29, 2016

The NIST Center for Nanoscale Science and Technology) (CNST) is pleased to announce the release of the Fall 2016 edition of The CNST News. This quarterly...

Man standing behind big silver equipment

Disseminating the New Kilogram: An International ‘Dry Run’

November 28, 2016

When the kilogram, the world’s basic unit of mass, gets a new definition in 2018, it will be based not on a physical artifact but a constant of nature. However...

NIST Debuts Dual Atomic Clock — and a New Stability Record

November 28, 2016

What could be better than a world-leading atomic clock? Two clocks in one. Physicists at the National Institute of Standards and Technology (NIST) have combined...

For Wearable Electronic Devices, NIST Shows Plastic Holes Are Golden

November 23, 2016

In science, sometimes the best discoveries come when you’re exploring something else entirely. That’s the case with recent findings from the National Institute...

Universe’s Constants Now Known with Sufficient Certainty to Completely Redefine the International System of Units

November 22, 2016

Fundamental constants are physical quantities that are universal in nature. For example, the speed of light in vacuum and the charge of a single electron are...

Big G Redux: Solving the Mystery of a Perplexing Result

November 16, 2016

If you spend time in physics research circles, you may have heard of the big G controversy. The universal constant of gravitation, G – affectionately known as...

Seeing Light’s Effect on Atoms — Within Picoseconds

November 16, 2016

For the first time in a laboratory setting, NIST scientists have made stop-action x-ray measurements of the way visible light interacts with atoms and molecules...

Noise, Temperature, and the New SI

November 15, 2016

NIST has recently made substantial improvements to its Johnson-noise thermometry system, which is playing a vital role in the worldwide effort to determine the...

This artist’s conception imagines the proposed ring of atoms as cars on a beltway.

Atomic Beltway Could Solve Problems of Cosmic Gravity

November 14, 2016

When is a traffic jam not a traffic jam? When it's a quantum traffic jam, of course. Only in quantum physics can traffic be standing still and moving at the...

JILA Team Spots Elusive Intermediate Compound in Atmospheric Chemistry

October 27, 2016

BOULDER, Colo.-- JILA physicists and colleagues have identified a long-missing piece in the puzzle of exactly how fossil fuel combustion contributes to air...

Drawing of a spiral delay line heater element, designed with the CNST Nanolithography Toolbox software

New Nanoscale Design Software Available Online

October 21, 2016

A recently developed CNST software package that designs difficult-to-draw nanoscale shapes, including spirals, S-bends, and tapered structures is now available...

Move Over, Lasers: Scientists Can Now Create Holograms from Neutrons, Too

October 20, 2016

For the first time, a team including scientists from the National Institute of Standards and Technology (NIST) have used neutron beams to create holograms of...

Screenshot of an animation of a superradiant laser

JILA’s Superradiant Laser May One Day Boost Atomic Clocks and ‘Rulers’ for Space

October 14, 2016

BOULDER, Colo. – JILA physicists have demonstrated a novel laser design based on synchronized emissions of light from the same type of atoms used in advanced...

CNST Welcomes New Deputy Director

October 3, 2016

For James Kushmerick, who became the deputy director of CNST on Oct. 3, joining the Center “feels like I’m getting back to my roots.” In 1994, Kushmerick was...

Meet Bob, PML's Second "Primary" Coordinate Measuring Machine

September 21, 2016

Until recently, if a company wanted the best measurements in the world for the physical dimensions of one of its dimensional standards, it had to book time on...

Supported by Granite, New SURF Beamline Is Real Heavyweight

September 21, 2016

If your work involves sensing, measuring or using ultraviolet light, the National Institute of Standards and Technology (NIST) has great news for you: Granite...

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