A Bend In That Ruler
A curved ruler? Why would anyone need one? It’s not curved horizontally, it’s curved vertically so you have to press down on it to get a smooth edge. Sure, it may sound a bit unrealistic But it’s this kind of eccentric idea that makes the Arch Ruler more convenient and enjoyable than your old fashioned, traditional ruler.
Designer: Tomoya Yoshida

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I think this is an elegant solution for those of us (oldies) who still use a ruler (ie. still actually put pen to paper as part of our design activities!)
To have your ruler spring back up once you release your hand means you can easy grab and move it - unlike it’s flat siblings that often require razor sharp fingernails, or a deft slide off the side of the desk to be able to pick up.
Nice work
Cheers!
Marc
good for back to school tool + conversation piece
The purpose of this clever idea is that it will prevent smudging when the ruler gets removed from the paper.
Quite interesting!