■ Chan-joong Kim/Superconducting Materials Engineer The 42nd protagonist! Dr. Chan-joong Kim! The superconductivity phenomenon that Dr. Chan-joong Kim is researching means that it ‘transmits a lot of electricity’, and it has unique properties such as ‘no electrical resistance’, no electrical loss during movement, and ‘perfect diamagnetism’ that repels magnetic fields. Because of this, it has the potential to be used in many industrial fields that utilize electricity, such as MRI, magnetic levitation trains, and power transmission cables. Since the superconductivity phenomenon was first discovered in ‘mercury’ by Dutch scientist Heike Kamerlingh Onnes in 1911, many scientists have been working to advance the superconducting society. Dr. Chan-joong Kim is a scientist who is researching various synthesis methods for superconductors and improving the efficiency of superconducting wires. He improved the properties by using ‘cerium oxide’ as a catalyst material for superconductors, and eliminated particle agglomeration by adding glycerin, which is used in cosmetics, to increase superconducting efficiency, and also created 14 new manufacturing processes. To date, he has various achievements such as applying for technology patents, publishing about 150 SCI-level papers, and transferring technology to industries. The group of many scientists including Dr. Kim says that they are helping countries that have benefited from technology improve their quality of life by providing necessary science and technology that is tailored to their culture and environment. This is called science and technology for the 90%, appropriate technology. Starting with the first appropriate technology called 'Good Saver', which has a thermal insulation function, Dr. Kim has been sharing science and technology with many scientists, from water purification technology to charcoal making machines. He has even recently opened a superconductivity cafe to share scientific videos and photos, and has been sharing superconductors that he has made for free to schools across the country, showing the true face of an intellectual of our time. Let's take a look at the story of Dr. Kim Chan-joong, a scientist with cool intellect and warm emotions. (Bravo K-SCIENTIST) [YTN Science original article] https://science.ytn.co.kr/program/pro...