From AR-powered rulers to GPS-based land survey tools, these 8 best measuring apps for iPhone and Android let you measure length, height, area, and even perimeters on the go. Accurate, versatile, and ...

You may have seen surveyors (or maths students) running around with measuring wheels, counting the clicks to measure distances. [AGBarber]’s digital measuring wheel works in much the same way, but ...

A quantum watch can tell time without counting it. This stopwatch-like method of observing quantum experiments is a deceptively simple – and always accurate – way to measure the passage of time. Marta ...