We start off with a device that once was essential to higher-level math, in school and in the workplace, but now has all but disappeared: The slide rule. "Take your batteries out," Jim Hus says ...

In 1622, William Oughtred created the first slide rule, a simple and easy-to-use calculation device consisting of two parallel logarithmic rulers that can slide past each other. It was the ...

“We noticed that when people want to be creative, they stop using our tools and ... Adobe solved this problem with Ink and Slide, a stylus and straight rule that come packaged together.

Adobe Ink is a cleverly-designed version of an Adonit Bluetooth-enabled stylus, and Adobe Slide is a unique "digital ruler" that works with Adobe's new iPad applications, Sketch and Line.