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

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

Publish your project

0-condom / o-comdom

0-condom
0-condom

The correct use of condom can reduce the possibility of AIDS infection by 99.9% and that of gonorrhea by 85%. However, due to regional and cultural difference, people have prejudiced and poor knowledge of sex. 1 Most people don’t know the fact that the small ballonet at the top of condom used to store semen should be pinched flat before use. This will guard against the thermal expansion of air in the ballonet and ensure the semen will flow out along the penis base during ejaculation. 2 They can’t make a distinction between the right side and the wrong side. The above-mentioned two aspects will unexceptionally weaken the safe use of condom.Thi

University

University of Electronic Science and Technology of China,Zhongshan Institute

University of Electronic Science and Technology of China,Zhongshan Institute
zhongshan, China