Congratulations to Oliver Nicholls, 19, from Sydney, Australia, came first among 1,800 competitors from 81 countries, regions and territories. at the 2018 Intel International Science and Engineering Fair (ISEF) with a prototype of a window cleaning robot designed for the facades of commercial buildings. The competition, run by the Society for Science & the Public is the world’s largest international science competition for pre-college students. Oliver entered the competition as part of the BHP Billiton Foundation Science and Engineering Awards Australian delegation and STANSW’s Young Scientist delegation. This was because he also was the winner of the 2018 BHP Billiton Foundation Science and Engineering Award. Oliver's prototype device uses drones, motors and propellers to navigate building facades and clean windows using water and micro-fibre scrubbers.