Talent, knowledge and skill were on display at this fest.The five-day State-level science exhibition was a confluence of young scientists of Tamil Nadu. The 33rd State-level Jawaharlal Nehru science exhibition held in Madurai provided a platform to students to exhibit their creativity and knowledge.Understanding the increasing demand of energy conservation in various sectors and the use of solar energy in day-to-day life, S. Senthil Kumar, M. Ram Prasad and K. Senthur Pandian of DD Vinayagar H.S. School from Ramanathapuram explained their "solar heater-cum-cooker", while R. Surya of Nirmala Girls H.S. School, Ariyalur, explained her model of solar house, in which all electrical appliances operated on solar light.R. Dhinesh Kumar and his five friends from Mayiladuthurai had displayed an impressive model on sewage water treatment, and even released a budget for establishing the treatment plant in Madurai.A team from Vaitheeswarankoil elaborated on biogas production from vegetable market waste. Students of Zion Matric H.S. School, Chennai, displayed their model on "outline of bio-diesel manufacturing process", while students of St. Thomas' Matric H.S. School, Chennai, displayed the central heating system in buildings to be used in winter.Considering the increasing number of road accidents, Dinesh and Sankar of PKN Boys H.S. School, Thirumangalam, had designed an "accident quick informer and fast rescue model". The "clap switch" of Hindu H.S. School, Vaniyambadi, was an attraction. L. Kalanidhi explained the process, while his friend C. Kugan presented a "traffic jam scene with thousands of cars" using reflection mirror image.
More modelsG. Pradeesh of Government H.S. School, Kattathkathri, fascinated the visitors with his two models on remote-control ship with video camera that could travel in land and on sea, and a mini-robot video camera to detect explosives in unreachable caves. Girls from Montfort A-I H.S. School, Yercaud, presented a scenic model on "oceanic electro magnetic waves fencing" that would be useful for fishermen to know their boundaries.A four-member team from Pandiaraj Memorial School, Kotagiri, showed a model on how to avoid accidents at unmanned crossings, and how to tap electricity from the moving wheels of trains.Sri Venkatakrishna H.S. School, Coimbatore, presented a herbal mosquito coil made of waste paper, camphor and neem leaves.G. Naveen from St. Patrick's A-I H.S. School displayed his invention of a "Life Detection Using Wireless Communication" to rescue people trapped in holes. West Tirunelveli H.S. School students had designed an "LPG gas level warning alarm" for housewives and an "automatic switch" for the benefit of aged people. The huge premises of St. Mary's H.S. School, the venue of the exhibition, was filled with models that included even an eco-friendly car by St Joseph's H.S. School, Cuddalore, a zipcar model by St. Britto H.S. School, a maths model by G.K. Jain H.S. School, Chennai, bio-diesel manufacturing from jatropa by Sourashtra Boys H.S. School, water pollution detector from OCPM Girls H.S. School, water purifying system from Ammapatti Government H.S. School, geo-educational satellite by St. Antony's H.S. School, Coonoor, 89 herbs and nutritional food items by Government Girls H.S. School Cumbum, and a walky charger by TMHNU Model H.S. School, Theni.