강대국 6개국만 가졌던 무기, 한국이 7번째로 손에 넣었습니다, 주변국이 떠는 이유, 디젤이랑 뭐가 달라도 이렇게 달랐습니다

China officially expressed concern and Japan reacted immediately simply because the three letters "nuclear-powered" were attached to the name of the same submarine. Just what exactly makes a diesel submarine and a nuclear-powered submarine so different underwater that a single vessel can put an entire neighboring nation on edge? In this video, we will trace, purely through science and excluding politics, how a nuclear reactor makes a submarine disappear underwater for months, why no one can catch this ship, and how South Korea—which had the capability but was held back for 40 years by a single issue of "fuel"—became the world's seventh nation to possess nuclear-powered submarines. If you watch until the end, you will grasp the scientific reasons behind the satisfying trembling of the great powers. Chapter 00:00 Korea Becomes the 7th — But Why Is Everyone Trembling? 03:00 The Fatal Weakness of Diesel Submarines — Ships That Periodically Surface to Breathe 07:00 Why Nuclear Propulsion Is Different — Underwater Power Plants, No Reason to Surface 12:00 The Terror of Undetected Ships — Sonar, the Thermocline, and the Jang Bogo-class RIMPAC 16:00 Underwater Kill Chain — Neutralizing the Enemy's Last Card Before Launch 19:00 Why Now? — The Single Word "Fuel" Was Blocking Us for 40 Years 21:00 The Bolt Has Been Opened — The World's 7th, Built by Our Own Hands