My plastic calipers are fine for the quick millimetric measurements I use them for but maybe not for higher precision work. Unsurprisingly an £8 micrometer doesn’t deliver consistent readings ...

A micrometer is a precision measuring instrument used by mechanical engineers, machinists and other workers in technical or ...

Laser micrometers are capable of measuring outside diameter for mechanical engineering and machining purposes. Within the micrometer is a transmitting unit responsible for emitting a laser beam that ...

A couple of years ago we published a look at precision measurement tools, in particular vernier calipers and micrometer screw gauges. It featured a look at how they work and how they’re used ...

Cells can vary between 1 micrometer (μm) and hundreds of micrometers in diameter. Within a cell, a DNA double helix is approximately 10 nanometers (nm) wide, whereas the cellular organelle called ...