빛이 입자인지 파동인지 이게 왜 그렇게 중요했을까요 (카이스트 물리학자 김갑진 교수)(1부)

💡Summary In this video, Professor Kim Gap-jin of KAIST explains that science is not an absolute truth, but rather a process of development achieved through continuous verification, refutation, and consensus, centering on the question, "What is science?" Scientists question existing theories, present new evidence, and engage in repeated debates; when sufficient evidence accumulates to reach a consensus within the academic community, that becomes current scientific knowledge. He emphasizes that the Nobel Prize is not an award for creating new truths, but rather a recognition of research that has significantly contributed to this scientific consensus. He then introduces the process of scientific development through the representative example of the question, "Is light a particle or a wave?" Newton described light as a particle, while Young and Maxwell argued that light is a wave through interference experiments and electromagnetic theory, which remained the established theory for a long time. However, when phenomena not explained by existing theories, such as blackbody radiation and the photoelectric effect, were discovered, Planck and Einstein proposed the particle nature of light. Subsequent experiments confirmed that light also possesses particle properties. Ultimately, modern physics accepts the quantum mechanical interpretation that light possesses both particle and wave properties simultaneously. While this may intuitively appear to be a contradiction, it is the model that explains the most experimental results to date and can be modified at any time if a better theory emerges in the future. Through such examples, Professor Kim explains that science is not a set of established truths but a process of constantly updating the most persuasive explanations, and that the important philosophy quantum mechanics imparts to us is that the world cannot be understood from a single perspective alone. 📌Key Theme Science is a process of development driven by evidence and consensus, rather than by truth. The Nobel Prize is an award that recognizes research contributing to scientific consensus rather than new discoveries. The historical debate between the particle theory and the wave theory surrounding the nature of light. Quantum mechanics explains that light possesses both particle and wave properties simultaneously. Even current scientific theories can be modified at any time by new evidence in the future. [This is a summary of the video using AI] 👉Understanding Inquiries: [email protected] 👉Read "Understanding Text". https://contents.premium.naver.com/ba... 👉 Join Understanding Membership    / @understanding.