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101 Windows by Adam Nathan

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Chapter 5. Ruler

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As with a flashlight, a ruler is something that is really handy to have on rare occasions, yet something that you almost never have when you need it. With the Ruler app, you can measure anything on-the-go with the phone already in your pocket!

Ruler shows a standard display of inches (divided into 16ths) and centimeters (divided into millimeters) and enables you to tap and drag on its surface ...

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