Collaboration has achieved the highest-resolution Earth-based observations to date, detecting light at 345 GHz from the ...

But they still use a micrometer for measuring dowel diameters, shim thicknesses and the depths of slots, holes and ...

a team of researchers has succeeded in laser-drilling the world's tiniest circuit board holes, measuring a near-inconceivable 3 micrometers in diameter. The standard measurement is a ...