News and Updates

Displaying 1 - 25 of 154

Opposite sides of a quartz crystal resonator

Universe in the Balance

February 12, 2020

Researchers at the National Institute of Standards and Technology (NIST) have found a way to link measurements made by a

A New Playbook for Interference

December 17, 2019

Particles can sometimes act like waves, and photons (particles of light) are no exception. Just as waves create an

A twist and a spin: harnessing two quantum properties transforms a neutron beam into a powerful probe of material structure

October 29, 2019

By cleverly manipulating two properties of a neutron beam, NIST scientists and their collaborators have created a

JQI Researchers Shed New Light on Atomic ‘Wave Function’

May 16, 2019

Physicists have demonstrated a new way to obtain the essential details that describe an isolated quantum system

EBIT’s Improved X-ray Vision Promises Astronomical Insights

April 25, 2019

Look at an astronomical marvel like the Cat’s Eye Nebula at right, with an average gas temperature about twice as hot as

a CT scanner with technician and patient

New X-ray Measurement Approach Could Improve CT Scanners

March 1, 2019

A new measurement approach proposed by scientists at the National Institute of Standards and Technology (NIST) could

White Cat Hair on Black Pants: International Study Measures Stability of Precision Masses to Benefit Trade

November 26, 2018

When are two nominally identical kilogram masses no longer identical? When each goes to a different place and adsorbs

Exactly how loud is that jackhammer?

August 17, 2018

When a jackhammer starts pounding outside your window at 7 o’clock on a Monday morning, you might find it annoying. For

Man standing working on a silicon carbide device

NIST Electronics Engineer Named Service to America Medal Finalist

May 7, 2018

National Institute of Standards and Technology (NIST) researcher Allen R. Hefner, Jr., has been named a finalist for the

Desktop Cosmology: A Model of the Expanding Universe

April 23, 2018

When the universe was very young – about a trillionth of a trillionth of a trillionth of a second after the Big Bang –

Comparison of Future Realizations of the Kilogram - Final Report

March 15, 2018

The Pilot Study — read 2016 article details — was completed in late 2016 and the Final Report was published on the BIPM

NIST Sharpens the 'Charpy' Test to Make a More Precise Impact on Industrial Materials

February 26, 2018

A decade before an iceberg shattered the hull plates of the Titanic and half a century before a plague of brittle

Person holding wallet card showing the values of fundamental constants being used for revising the International System of Units, the modern metric system.

Bringing the World Closer to Revised Measurement System, Scientists Update Four Key Fundamental Constants

October 23, 2017

Paving the way for transforming the world’s measurement system, an international task force has determined updated

Distant Exoplanets Revealed by Light from Wobbling Stars

October 16, 2017

Ask most folks what they would need to find planets orbiting distant stars, and very few will list a bottle of iodine.

Driving the Universal Quantum Bus

September 12, 2017

NIST scientists have achieved a world record in detecting the intensity of an ultra-faint source of light, equaling the

Close up shot of the NIST Kibble balance with two kilograms stacked on it

New Measurement Will Help Redefine International Unit of Mass

June 30, 2017

Using a state-of-the-art device for measuring mass, researchers at the National Institute of Standards and Technology

Quantum Thermometer or Optical Refrigerator?

June 22, 2017

In an arranged marriage of optics and mechanics, physicists have created microscopic structural beams that have a

Intrinsic Properties: The Secret Lives of Accelerometers

May 30, 2017

Accelerometers — devices that measure change in velocity — are built into automobiles, airplanes, cell phones

The New Standard for Resistance Standards?

May 22, 2017

Contrary to the popular maxim, resistance is not futile. But it is quantized: The ratings of the heat-making resistors

Mystery of the Dark Solitons

February 24, 2017

When your heart beats, blood courses through your arteries in waves of pressure. These pressure waves manifest as your

School building with overlay of units and constants

Heads Up, High School Class of '19: New Measurement Unit Definitions Are Coming

January 23, 2017

Next year, scientists expect to change the way we define the basic units with which we measure our universe. An article

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

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

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

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

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