Faculty of Mathematics and Natural Sciences UNY students, namely Delthawati Isti R, Rina Supriyani and Janu Arlinwibowo, who were one of the delegates representing Indonesia in the 2012 International Engineering Invention and Innovation Exhibition (i-ENVEX) managed to get a silver medal. In this event, Delthawati Isti R, Rina Supriyani and Janu Arlinwibowo brought an invention with the title: "The Innovation of Physical Quantity Measuring Instruments in Braille for Visually Impaired Students". This invention contains several measuring instruments specifically for the visually impaired,...