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Physics

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Displaying 501 - 525 of 1029

Reading the Secrets of Ancient Light

June 19, 2015

Much of what we know about the origin and early history of the universe comes from a phenomenon discovered by accident 50 years ago: The cosmic microwave

To Give Cancer a Deadly Fever, NIST Explores Better Nanoparticle Design

June 16, 2015

Heat may be the key to killing certain types of cancer, and new research from a team including National Institute of Standards and Technology (NIST) scientists

International Symposium on Forensic Science Error Management Announces Brandon Mayfield and Steven Wax as Keynote Speakers

June 9, 2015

#NISTForensics We are pleased to introduce our two keynote speakers for the first-ever International Symposium on Forensic Science Error Management, an event

The League of SI Superheroes is Running Out of Time!

May 29, 2015

The League of SI Superheroes is back! Working from their not-terribly-secret HQ at the National Institute of Standards and Technology (NIST), the cartoon heroes

Hot Off the Lathe: Dimensional Measurements of First Parts of VLOC Pressure Standard

May 28, 2015

Last fall, PML researchers built and tested the first-ever photonic pressure sensor, which makes its measurements using light. This sensor, called the Fixed

photo of calibration test setup

Coming Soon: A Calibration Facility for Micro-Flows

May 27, 2015

Many medical treatments both new and old involve extremely small doses of powerful drugs in liquid form – from scorpion venom for cancer research to opioid

Charge pumping in a transistor

New Chip Defect-finding Scheme Attracts Industry Leaders

May 27, 2015

Until recently, the semiconductor industry had a go-to method for quantifying atomic-scale defects in the billions of transistors contained in a single computer

photo of membrane in shock tube

Under Construction: Traceable Dynamic Pressure Standard

May 19, 2015

In recent years, the physical damage done by pressure waves – such as traumatic brain injuries from explosives sustained by military personnel in the Middle

What is Quantum Physics? Dancers Explain

May 15, 2015

Quantum physics drives much of the research at the National Institute of Standards and Technology (NIST). Explaining this research is a challenge, because

Two NIST Experts Named Service to America Medal Finalists

May 6, 2015

Two National Institute of Standards and Technology (NIST) researchers have been named finalists for 2015 Samuel J. Heyman Service to America Medals, which

Photonic thermometry package

Photonic Thermometers: Out of the Lab, Into a Bucket of Water

April 28, 2015

A new class of tiny chip-based thermometers being developed by PML's Sensor Science Division has the potential to revolutionize the way temperature is gauged

diagram of chip feature shapes

Detecting Effects of 3D Shapes in Nanoscale Chip Features

April 27, 2015

As microchip feature dimensions approach atomic scale, it becomes formidably difficult to measure their size and shape. According to the International

Humidity chamber

Why Firefighters Get Steam Burns: Exploratory Study Underway

April 27, 2015

A mystery has raged for decades surrounding accounts of firefighters who receive steam burns through their protective clothing. One ruling theory is that the

Getting Better All the Time: JILA Strontium Atomic Clock Sets New Records

April 21, 2015

In another advance at the far frontiers of timekeeping by National Institute of Standards and Technology (NIST) researchers, the latest modification of a record

NIST Tightens the Bounds on the Quantum Information 'Speed Limit'

April 14, 2015

If you're designing a new computer, you want it to solve problems as fast as possible. Just how fast is possible is an open question when it comes to quantum

Precocious GEM: Shape-Shifting Sensor Can Report Conditions from Deep in the Body

March 27, 2015

Scientists working at the National Institute of Standards and Technology (NIST) and the National Institutes of Health (NIH) have devised and demonstrated a new

Getting a Critical Edge on Plutonium Identification

March 23, 2015

A collaboration between NIST scientists and colleagues at Los Alamos National Laboratory (LANL) has resulted in a new kind of sensor that can be used to

samples of coated carbon foam

Novel Neutron Detector Makes Scintillating Debut

March 9, 2015

A team of researchers has successfully demonstrated a new design concept for a neutron detector that does not rely – as nearly all current models do – on a

Computing for Better Radiation Therapy

February 19, 2015

Doctors devising a plan of attack on a tumor may one day gain another tactical advantage thanks to a series of sophisticated calculations proposed by PML's

integrating sphere for light measurements

Following a New MAP for Solid-State Lighting

February 19, 2015

LED lights are notably cool. But as an industry sector, solid-state lighting (SSL) keeps heating up, with demand growing rapidly in residential, commercial, and

Autonomous Atom Assembly of Nanostructures using a Scanning Tunneling Microscope

February 13, 2015

NIST researchers have demonstrated the autonomous computer-controlled assembly of atoms into perfect nanostructures using a low temperature scanning tunneling

Monte Carlo simulation

Hidden Uncertainties Uncovered in Nuclear Forensic Measurement

February 2, 2015

A little detective work by nuclear physicists has uncovered hidden uncertainties in a popular method for precisely measuring radioactive nuclides, often used to

hybrid memory device thumbnail

Hybrid Memory Device for Superconducting Computing

January 23, 2015

A team of NIST scientists has devised and demonstrated a novel nanoscale memory technology for superconducting computing that could hasten the advent of an

portable vacuum standard

New Portable Vacuum Standard

January 23, 2015

A novel Portable Vacuum Standard (PVS) has been added to the roster of NIST's Standard Reference Instruments (SRI). It is now available for purchase as part of

Weighing Gas with Sound and Microwaves

January 23, 2015

Scientists at the National Institute of Standards and Technology (NIST) have developed a novel method to rapidly and accurately calibrate gas flow meters, such

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