Unsupported browser

You are using an outdated browser. Please upgrade your browser to improve your experience.

Sign up for
an Award

Participate with your entry in one of our professional or student awards.

Sign up for an award

Sign up for
a Profile

Create your own profile and publish it in the iF WORLD DESIGN GUIDE.

Sign up for a profile

Learn more:

iF SOCIAL IMPACT PRIZE
(free of charge)

Present your project for free and win your share of EUR 50,000 in prize money.

Publish your project

Longer / Longer

Longer
Longer

"Longer"is a highly interesting kind of ruler without any graduation. All measurements taken will be displayed on the ruler and they will be continuously updated according to the current length. To take measurements you slide along the ruler with your fingers according to the length.
In case the length of the ruler is insufficient, it is possible to extend its front part. This way errors occurring while moving the ruler are prevented and a high accuracy is kept.
Lastly, this ruler also includes a function which shows you the points that are forming a golden section.

University

Huazhong University of Science and Technology

Huazhong University of Science and Technology
Wuhan, China

Long Ren,Lei Tian

Design

Huazhong University of Science and Technology

Huazhong University of Science and Technology
Wuhan, China

Zhang aoyu,Qi Changdong,Guo Lie,Chen Zailu,Wang Yali,Huang Hongliang