For physicists, measuring the precise magnitude of a physical quantity is a key to understanding quantum mechanics. However, there is a limit to how precise a measurement can be made, which is ...

There are several tips and tricks worth knowing when it comes to interpreting a tape measure accurately.

(PhysOrg.com) -- In the classical world, scientists can make measurements with a degree of accuracy that is restricted only by technical limitations. At the fundamental level, however, measurement ...

A research team has discovered a Heisenberg-limited metrology via weak-value amplification without using entangled resources. Most quantum information technologies including quantum computers -- ...

Three-dimensional (3D) surface geometry provides essential information in various sciences and precision engineering. Fringe Projection Profilometry (FPP) is one of the most powerful non-contact (thus ...

OBJECTIVE: To investigate methodological and biological precision for air-displacement plethysmography (ADP) across a wide range of body size. DESIGN: Repeated measurements of body volume (BV) and ...

The atomic clock comes in many varieties. Some are chip-sized electronics, developed for the military but available commercially now, while bigger and more accurate atomic clocks keep track of time on ...

Techniques for measuring ultrashort pulses have come a long way in the last 10 years. Marie Freebody speaks to Rick Trebino about the intricacies of working at femtosecond timescales and how the ...

Measuring wall thickness and concentricity requires ultrasonic technology that sees through the tube wall—catching critical ...