A physical constant’s value shouldn’t depend on how you measure it

A physical constant’s value shouldn’t depend on how you measure it

Measurements in physics are funny things. You’d hope that attempts to quantify some of the fundamental properties of the Universe would follow a simple pattern: they’d start with large error bars, but, over time, measuring technology improves and the error bars shrink. Ideally, the value would then remain nicely within the previous error.

Source: arstechnica.com