History of science and technology in Korea such as the division of Korea and the Korean War that occurred right after its independence. It wasn't until the 1960s under the dictatorship of Park Chung-hee where South Korea's economy rapidly grew from industrialisation and the Chaebol corporations such as Samsung and LG. As of 2008 South Korea ranked 5th highest in terms of R&D. Park Kye-jung, CEO of Ace Electronics, won the Gold and Silver prizes for his invention of motor and motor-equipped gear at the 23rd Invention and New Product Exposition, he took the gold medal with his invention of a special device that converts vibrations from
Telecommunications in South Korea than 100 radio stations were broadcasting. Transistor radios and television sets have made their way to the most remote rural areas. Television sets, now mass-produced in South Korea, became far less expensive; most city people and a significant number of rural families owned or had access to a television. Ownership of television sets grew from 25,000 sets when broadcasting was initiated in 1961 to an estimated 8.6 million sets in 1987, and more than 250 television stations were broadcasting. There are three mobile phone service providers: SK Telecom, KT and LG Uplus. South Korea has six national terrestrial television networks