Sign up for an Award
Participate with your entry in one of our professional or student awards.Sign up for an award
You are using an outdated browser. Please upgrade your browser to improve your experience.
most people have a earphone with them to listen to music or have phone calls no matter where are they going,but seldom have people took a ruler with them. however, people need to measure something more often than not.
this design takes advantage of an earphone which is often carried and available,long enough and flexible, and combine these advantages with a ruler.all we need to do is printout standard scale on it, they you can have a convenience ruler with you!
the ruler earphone can be used to solve problems in daily life, like measuring your waistline to choose a jeans on e-shops, measuring the length of graphs on the textbook,
China University of Geosciences
class of 074111
Wuhan, Hubei province, China
National Taxation Bureau of Dangyan
Dangyang, Yichang, Hubei Province, China