I was watching Ben Krasnow making iron nitride permanent magnets and was struck by the fact that about half of the video was about making a magnetometer – a device for measuring and characterizing the ...

Body mass index (BMI) has been a controversial health measurement for years, with critics pointing out that it can be misleading. Still, it's a relatively easy stat for doctors to calculate, so it ...

Electrons are really, really round. A new measurement confirms the subatomic particle’s spherical shape to a record level of exactness, physicists report in the July 7 Science. That near-perfect ...

When it comes to the expansion rate of the universe, physicists have apparently agreed to disagree. Two types of measurements clash over how fast the cosmos is expanding (SN: 7/30/19). Now, a new ...

As the oldest science in the world, metrology, or the science of measurement, has had to continually evolve. From the cubit in ancient Egypt to highly precise calibrators today, the science around ...

The National Measurement Laboratory, Government Chemist and MHRA – three critical national functions of science and safety – brought together in a purpose-designed laboratory facility for the first ...