An official website of the United States government
Here’s how you know
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Having such precise models of lunar dust will enable NASA and private space exploration companies to create more accurate simulations of the Moon’s surface.
For more than three decades, the National Institute of Standards and Technology (NIST) has calibrated the wavelengths of lasers used in industry, academia, and
As mechanical objects, gears have been around for so long that people may take them for granted. But gears are sophisticated parts that play a vital role in
Sneezes, rain clouds, and ink jet printers: They all produce or contain liquid droplets so tiny it would take several billion of them to fill a liter bottle
Researchers at the National Institute of Standards and Technology (NIST) have developed a dramatically improved laser-based instrument that measures the
Scientists at the National Institute of Standards and Technology (NIST) have devised a novel, accurate, easy-to-operate, time- and labor-saving way to provide
A tooth? An angel? A strong man? Instead of seeing patterns in clouds, our scientists go to the microscope! NIST’s Ravi Attota uses a simple optical microscope
When Jorge Campbell, an engineer from Argentina’s National Institute of Industrial Technology (INTI), visited the National Institute of Standards and Technology
Researchers at the National Institute of Standards and Technology (NIST) have created a chip on which laser light interacts with a tiny cloud of atoms to serve
For some, it is a shocking revelation. But most Americans eventually come to accept the fact that a “two by four” board is actually 1.5 inches by 3.5 inches (38
When you walk into the laboratory that houses NIST’s newest coordinate measuring machine (CMM), you might be puzzled at first about how engineers got it into
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
Earlier this month, PML's Dimensional Metrology Group hosted a three-day hands-on training event for 13 industry and government attendees. The class was given
In yet another Olympian feat of measurement, researchers at the National Institute of Standards and Technology (NIST) recently calibrated a tape that will be
Note:
Much more recent information is available about redefinition of the SI units. For a comprehensive general overview, see How to Weigh Everything from
Taking the first steps of what would be a major historical advance in the science of measurement, the National Institute of Standards and Technology (NIST) is