Ray Wijewardene

Deshamanya Philip Revatha Wijewardene, better known as Ray Wijewardene, (Sinhala:පිලිප් රෙවත විජයවර්ධන) (20 August 1924 - 18 August 2010) was a Sri Lankan engineer, aviator, inventor, and Olympic athlete. He was an expert on tropical agriculture and natural resource management, subjects that he created a logical system to study. He invented devices to assist small farmers in developing countries. Provided by Wikipedia