In the roughly quarter-century of their development, these "rulers for light" have revolutionized many kinds of high-precision measurement, from timekeeping to molecular detection via spectroscopy.

An archaeologist uses a ruler to measure a piece of leather. He measures using centimetres and tenths of centimetres. The leather measures 3.3cm. A thermometer is set out in intervals of tenths of ...

An archaeologist uses a ruler to measure a piece of leather. He measures using centimetres and tenths of centimetres. The leather measures 3.3cm. A thermometer is set out in intervals of tenths of ...

Now, we have a Ruler. You fire app Ruler and, well…your iPad is now a wooden ruler. You can switch between inches and centimeters, slide your finger on screen to measure stuff, and that’s it. It’s so ...

Changing the ruler’s 0 origin means changing the position where the starting point (0) for measurement on the ruler is. The default zero position of the ruler is usually at the left edge of the ...

The tiniest “ruler” ever is so precise that it can measure the width of a single atom within a protein. Proteins and other large molecules, or macromolecules, sometimes fold into the wrong ...

Most rulers force users into uncomfortable angles, making measurements harder than they should be. RulaPen+ features a 30° angled edge, ensuring numbers are always in clear view without hunching ...

Show measurements in the width of characters are useful when it comes to printing. When you want to change the ruler unit back to the default units of measurement, head back to the same setting in ...