Angle measurement and calibration techniques are pivotal in ensuring the precision and accuracy of various engineering applications, from manufacturing and robotics to surveying and advanced medical ...

Precision instruments often contain specialized components that are essential to their function, but nearly impossible to replace if they fail. [Andre] had just such a problem with an optical ...

Smartphones are useful for a lot of things. You can even use one as a ruler in a pinch. Generally speaking, you won’t replace your trusty yard stick. A phone is simply too small for anything other ...