Knock Knock is an amazing project that combines both technology and design. With it’s minimalist look, the wooden cube presents a face with the 4 mathematic basics: Additions, soustractions, multiplications and divisions. Have an original knock and then knock anywhere to operate by the number you want. Hard to explain but very simple to understand. Click on the picture below to tell you more about it in a video. Knock Knock was conceived and designed by Swiss designer Khalil Klouche.
