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

Line protractor / protractor

Line protractor

When we use the protractor, we will find that it’s hard to measure the angle which is formed by three points far away each other. The design solves the problem. There is a line tying to the protractor. When the line passes through the further point, we can read the angle easily.

University

Zhejiang University

Zhejiang University
Hangzhou, ZHEJIANG PROVINCE, China

Go to profile
University

Zhejiang University

Zhejiang University
Hangzhou, ZHEJIANG PROVINCE, China

Go to profile
Design

Zhejiang University

Zhejiang University
Hangzhou, ZHEJIANG PROVINCE, China

Liusimin, Tang zhichuan, Yang zhongliang, Chen yumiao

Go to profile