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:


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

Publish your project

FLUID TURN / bicycle


Cycling has become a popular pastime around the world with lots of people riding on the roads during the day and at night. When cycling at night however, lack of ambient lighting and poor illumination may hamper visibility for other cyclists behind you, making it hard for them to tell which direction other cyclists intend to go. This often causes dangerous accidents while riding and turning. Fluorescent fluid in a communicating tube can be effectively used as a turn signal when the bicycle is going straight, turning right or turning left, increasing the safety of nighttime cycling.


National Taipei University of Technology

National Taipei University of Technology
Taipei, Taiwan

Chen Chin-Chuan,
National Taipei University of Technology