An annual schools science exhibition attracted a bunch of highly original entries. The Global Indoor Lost and Found System, based on the satellite tracking global positioning programme, helps find things that often go missing at home. Then there's the wind shear monitor that informs pilots of sudden changes in wind direction. There is also the Shemir, a compact device which enables people who speak different languages to communicate. These were just a few of the imaginative projects on display at the 31st Joint Schools Science Exhibition at the Hong Kong Science Museum in Tsim Sha Tsui. Hong Kong Polytechnic University president Professor Poon Chung- kwong said the project had been a success. 'It has helped stimulate students' interest in science. 'It has also boosted their awareness of scientific developments,' Professor Poon said. Twenty-four secondary schools were shortlisted to present their proposals on the theme - Conflict, Advancement, Harmony. A fatal bus accident at the Lunar New Year prompted the team from Salesian English School to create Slanbus Pro. Project leader Jacky Chan Chi-yu, 18, said it was aimed at preventing road accidents. 'The software warns drivers of dangerous corners,' Chi-yu said. Three people died and 54 were injured when the double-decker tilted and fell over the Tonnochy Flyover in Wan Chai. 'The computer system will collect important data for drivers, including speed, camber of the bend, banking angles of the road, and other conditions,' Chi-yu said. 'It will alert drivers of danger when going into a hairpin bend and tell them to slow down.' The team believed the system would help commuters get a better, safer ride. Students at Raimondi College focused on the wind shear problem encountered by pilots. Team leader Johnny Lee Siu-hang said: 'The physical environment of the new airport at Chek Lap Kok may increase the possibility of wind shear, or unexpected wind. 'We intended to devise measures to counter the problem.' The 18-year-old said the exhibition had enhanced his understanding of science. Teams from Anhui province, Taipei, and the Chinese University of Hong Kong also took part in the exhibition.