Sign up for an Award
Participate with your entry in one of our professional or student awards.
Sign up for an awardLearn more:
Unsupported browser
You are using an outdated browser. Please upgrade your browser to improve your experience.
Unsupported browser
You are using an outdated browser. Please upgrade your browser to improve your experience.
Are you having problems with measuring curve?
A "Two Way Tape Line" is a fascinating integration of existing steel ruler and thin thread-ruler, and it is designed in order to measure the length of curved surfaces more easily and accurately. This thread-ruler covers any curved sufraces, efficiently measuring as well as rotating like a protractor.
Hoseo University
Asan, South Korea
Hoseo University
Asan, South Korea
Da eun Kim
Hoseo university
Pohang, South Korea
Da bin Kim
Hoseo university
Suncheon, South Korea
Won Heo
