Kyong Wonha is said to be father of nuclear technology in North Korea. Hangul is the native alphabet used to write the Korean language, as opposed to the hanja system borrowed from China. ... Hanja, or hanmun, sometimes translated as Sino-Korean characters, are what Chinese characters (hanzi) are called in Korean. ... The Revised Romanization of Korean (Korean: 국어의 로마자 표기법; 國語의 로마字 表記法) is the official Korean language romanization system in South Korea. ... McCune-Reischauer romanization is one of the two most widely used Korean language romanization systems, along with the Revised Romanization of Korean, which replaced (a modified) McCune-Reischauer as the official romanization system in South Korea in 2000. ... A residential smoke detector is for most people the most familiar piece of nuclear technology Nuclear technology is technology that involves the reactions of atomic nuclei. ...

In North Korea, Kyong Wonha was a student at Kim Il-sung University in Pyongyang. During the Korean War, he fled to South Korea, and eventually immigrated to Brazil and then Canada. He got a master's degree at McGill University in 1969, and finally a doctorate at the same institution. Upon graduation, he could not find a job. That is why he accepted the invitation from Pyongyang. He returned to North Korea, and supervised the construction of Yongbyon Reactors and then the whole nuclear development program of the country. Kim Il-sung University, founded in 1946, is the first university built in North Korea. ... Pyongyang (평양 / 平壤) is the capital city of North Korea, located in the bottom third (almost direct center) of the country, situated on the Taedong River. ... The Korean War, from June 25, 1950 to cease-fire on July 27, 1953 (the war has not ended officially), was a conflict between North Korea and South Korea. ... McGill University (Université McGill), is a publicly funded, research-intensive, non-denominational, co-educational university located in the city of Montreal, Quebec, Canada. ... 1969 (MCMLXIX) was a common year starting on Wednesday For other uses, see Number 1969. ... North Korea has several nuclear facilities with the potential to produce nuclear fuel for weapons. ...

He defected to the West along with 20 scientists and military officers in October 2002 during Operation Weasel, a complex operation that spanned six months and involved the Pacific island state of Nauru and 10 other countries. He took with him many North Korean state secrets of the atomic program pioneered since 1984. To meet Wikipedias quality standards, this article or section may require cleanup. ...

See also

• North Korea and weapons of mass destruction
• List of Korea-related topics

• North Korean defectors
• List of Koreans
• Nuclear technology