Search results for NIST

General Physics Sep 4, 2024

Major leap for nuclear clock paves way for ultraprecise timekeeping

The world keeps time with the ticks of atomic clocks, but a new type of clock under development—a nuclear clock—could revolutionize how we measure time and probe fundamental physics.

Optics & Photonics Aug 28, 2024

Tiny new lasers fill a long-standing gap in the rainbow of visible-light colors, opening new applications

It's not easy making green. For years, scientists have fabricated small, high-quality lasers that generate red and blue light. However, the method they typically employ—injecting electric current into semiconductors—hasn't ...

Astronomy Aug 12, 2024

What time is it on the moon? Researchers develop a plan for precise timekeeping

For decades, the moon's subtle gravitational pull has posed a vexing challenge—atomic clocks on its surface would tick faster than those on Earth by about 56 microseconds per day. This extremely small difference doesn't seem ...

Analytical Chemistry Jul 9, 2024

New hemp reference material will help ensure accurate cannabis measurements

The National Institute of Standards and Technology (NIST) is now selling a hemp reference material that will help laboratories accurately measure key components in cannabis plant products. This will help law enforcement agencies ...

Analytical Chemistry Jun 25, 2024

Researchers identify a cheaper, more convenient method to detect asbestos

For decades, a laboratory procedure known as transmission electron microscopy (TEM) has been used to test for asbestos in samples taken at construction sites.

Analytical Chemistry May 31, 2024

A new way of designing auxetic materials

Imagine pulling on the long ends of a rectangular piece of rubber. It should become narrower and thinner. But what if it instead became wider and fatter? Now, push in on those same ends. What if the rubber became narrower ...

Superconductivity May 16, 2024

Coupling quantum mechanical simulations and AI paves way for screening new superconductors

Superconductors are materials that conduct electricity without resistance and are essential for several technological advancements, which include medical imaging and energy-efficient technology. However, most known superconductors ...

Condensed Matter Apr 23, 2024

The big quantum chill: Scientists modify common lab refrigerator to cool faster with less energy

By modifying a refrigerator commonly used in both research and industry, researchers at the National Institute of Standards and Technology (NIST) have drastically reduced the time and energy required to cool materials to ...

Analytical Chemistry Apr 1, 2024

Using a cellphone compass to measure tiny concentrations of compounds important for human health

Nearly every modern cellphone has a built-in compass, or magnetometer, that detects the direction of Earth's magnetic field, providing critical information for navigation. Now a team of researchers at the National Institute ...

Optics & Photonics Mar 19, 2024

A method to accurately center quantum dots within photonic chips

Devices that capture the brilliant light from millions of quantum dots, including chip-scale lasers and optical amplifiers, have made the transition from laboratory experiments to commercial products. But newer types of quantum-dot ...

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