Since the scale line of a general ruler has a width, many people have had the experience of trying to draw a line of the correct length with a ruler and wondering 'how far should I draw this scale ...

Admit it, the iPhone in your pocket is like a Swiss Army Knife - it’s easy to carry and has a tool for almost every job; oh yeah, and it makes phone calls too. A ruler isn’t something you need all the ...

Traditional rulers might think they’re hot stuff – especially those metal ones with their sharp edges and shininess. But their bluster’s no good when you want to measure around a corner, or the ...

This release is also available in Chinese on EurekAlert! Chinese. College Park, MD (August 31, 2010) -- With the advent of nanometer-sized machines, there is considerable demand for stable, precise ...