Farming aids and a cleaner planet just some of the highlights of day two at Young Scientist exhibition

Three Tipperary teenagers put a lot of work and time but very little money into developing a mass sensor so farmers know how much feed they are giving to their animals.

Developed by students from St Joseph's College, Borrisoleigh, Co Tipperary, the weighing sensor is one of the 550 shortlisted projects on display at the BT Young Scientist and Technology Exhibition (BTYSB).