FLANNERY, Sarah, Irish student. The 1999 prize-winner in The Irish Young Scientists and Technology Exhibition. Sarah is mathematically inclined (her father is a mathematics lecturer). Her invention was a new way of sending electronic messages, faster than the RSA systems currently in use but entirely secure for confidentiality. The coding system is designed for Internet and e-mail usage, and involves cryptography using an algorithm. Sarah has not patented it, she wanted it to be in the public domain. As a result of this she represented Ireland in the European Science Competition in 1999. Sarah named her new code the  Cayley/Purser, in honour of Arthur Cayley (mathematician) and Michael Purser (a cryptography expert).