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Gaithersburg

How Bright is the Moon, Really?

The “inconstant moon,” as Shakespeare called it in Romeo and Juliet, is more reliable than his pair of star-crossed lovers might have thought. Now researchers

Materials Genome Initiative

NIST promotes U.S. innovation and industrial competitiveness by advancing measurement science, standards, and technology in ways that enhance economic security and improve our quality of life.

Quiz - Are you Safe Online?

Take our quiz below to test your knowledge and see if you are truly secure online. Don’t forget to share with other folks and challenge your...

2017 APS Fellow - David Newell

For significant contributions to the least squares adjustments of the fundamental constants of nature from experimental data and to the

Nanocalorimeter Measurement System

This Nanocalorimeter Measurement System is used for nanocalorimetry measurements at fast heating rates (100 °C/s to 100,000 °C/s) and measurements of samples

Nanocalorimeter Calibration System

The Nanocalorimeter Calibration System is used to calibrate each individual nanocalorimeter sensor chip used in the nanocalorimetry measurements project. The

Impact Mitigating Materials

The STG is developing improved test methods for assessing the ability of materials to protect against sporting and similar moderate rate impacts.

Model-Based Enterprise Summit 2018

Mon, Apr 2 - Thu, Apr 5 2018
The goal of the 2018 MBE Summit was to identify challenges, research, implementation issues, and lessons learned in

Metal Detection

Metal detection is the most commonly-used technology for finding metallic threats concealed on people. Hand-held metal detectors (HHMDs) and...

Through-barrier sensing and imaging

The Security Technologies Group (STG) develops the metrology for through-barrier sensing and imaging technologies. These nonmetal barriers may be ordered/structured, such as building walls, barricades, bridges, etc., or disordered, such as hedges and rubble. Because the purpose is to sense or image through these barriers, the frequencies (or equivalently, the wavelengths) of the electromagnetic energy used in these imaging systems is relatively low, typically between 100 MHz and 5 GHz (or between 3 m and 0.06 m). The lower frequencies typically have greater penetration through nonmetal barriers than the higher frequencies, but their spatial resolution is lower, which would affect image resolution.

Nailing Down Lumber Standards

Before you line up at the cash register in a building-materials store, you might want to ask yourself: Is that 8-foot, 2x4 board you’re...
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