They do not require adjustment or movement for every measurement taken like other types of rulers might need. It is so precise at what it does- measuring distances up to 1/10th of an inch (2mm).

Stanford researchers have unveiled a new type of frequency comb, a high-precision measurement device, that is innovatively small, ultra-energy efficient, and exceptionally accurate. With continued ...

Ace Painters and Decorators demonstrate different types of rulers as they help the King and Queen of Diamonds redecorate. This episode explains metres.

(Nanowerk News) Researchers from PD Dr. Gregor Hagelueken's group at the Institute of Structural Biology of the UKB used PELDOR spectroscopy to study the movement of substrate-binding proteins (Nature ...