Your smartphone can not only serve you as a digital ruler, but it can also help you measure various other things. Smartphones are very powerful tools, especially if you pair them up with good apps. In ...

TLDR: The Rollova 2.0 Digital Ruler slips into your pocket and springs to life to measure over any surface, even curves, with just a simple roll. While the wooden ruler is best remembered as the ...

How do you measure something that’s not in a straight line? Rulers and tape measures work, but only so well, and at certain points you’re making an approximation as you try to fit the object to the ...

Just as a meter stick with hundreds of tick marks can be used to measure distances with great precision, a device known as a laser frequency comb, with its hundreds of evenly spaced, sharply defined ...

Every industry uses its own metrics. Fabrics come by the yard, gas is sold by the gallon, office space in New York City is rented by the square foot. As it turns out, however, renting precise amounts ...

When designing materials and structures at the nanoscale, it is important to be able to characterize and measure them. Getting tools to measure on these very small length scales can be challenging as ...