I feel like blindly using the Reading Ruler would be like spelling "disaster" in the dark, I can do it but I probably won't like the results. Of course, sometimes a job requires work in the dark (i.e. power outages, deadlines and more), and that's when this measuring tool would come in mighty handy.
Designed by Ho Sung-woon & Woo Moo-bum, the Reading Ruler is a compact gadget that features a digital display that reads out the units of measure. Check the Reading Ruler out in action in the video above.
Fingertip Measuring Devices
Measuring Tape Chronometers
Digital Measuring Devices
The Reading Ruler Measures in the Dark
By: Meghan Young - Published: Dec 22, 2010 • References: yankodesign