자석의 원리 아셨습니까? N극, S극의 근원은? 자석의 자기장 어떻게 나올까?

<p style="text-align: center;"><a href="https://www.youtube.com/watch?v=FU29W6B1eeE" target="_top" class="ke-link">https://www.youtube.com/watch?v=FU29W6B1eeE</a> </p><div class="figure-video" data-ke-type="video" data-video-url="https://www.youtube.com/watch?v=FU29W6B1eeE" data-video-host="youtube" data-video-play-service="daum_cafe" data-video-width="640" data-video-height="480" data-ke-style="alignCenter" data-video-thumbnail="https://scrap.kakaocdn.net/dn/9nXIZ/hyQH6IgyhS/cSEKFz71V7LwjcgPo4n6k1/img.jpg?width=640&height=480&face=0_0_640_480" data-ke-mobile-mobileStyle="widthContent" data-video-origin-width="640" data-video-origin-height="480"><iframe src="https://www.youtube.com/embed/FU29W6B1eeE" width="640" height="480" frameborder="0" scrolling="no" allowfullscreen=""></iframe><div class="figcaption">자석의 원리 아셨습니까? N극, S극의 근원은? 자석의 자기장 어떻게 나올까? [자석과 스핀트로닉스 1/3화, KAIST 김갑진 교수]</div></div><p style="text-align: center;"><a href="https://www.youtube.com/watch?v=1tsAW1f-heE&list=TLPQMjcxMTIwMjIjZOIzALTw1w&index=2" target="_top" class="ke-link">https://www.youtube.com/watch?v=1tsAW1f-heE&list=TLPQMjcxMTIwMjIjZOIzALTw1w&index=2</a> </p><div class="figure-video" data-ke-type="video" data-video-url="https://www.youtube.com/watch?v=1tsAW1f-heE" data-video-host="youtube" data-video-play-service="daum_cafe" data-video-width="640" data-video-height="480" data-ke-style="alignCenter" data-video-thumbnail="https://scrap.kakaocdn.net/dn/bn97gS/hyQH4joSyv/qPdXyDMsnnGyObZA2fVKF1/img.jpg?width=640&height=480&face=0_0_640_480" data-ke-mobile-mobileStyle="widthContent" data-video-origin-width="640" data-video-origin-height="480"><iframe src="https://www.youtube.com/embed/1tsAW1f-heE" width="640" height="480" frameborder="0" scrolling="no" allowfullscreen=""></iframe><div class="figcaption">양자역학 탄생에 '스핀'이 있었다! '스핀'은 무엇이고 어떻게 등장했을까? [자석과 스핀트로닉스 2/3화, KAIST 김갑진 교수]</div></div><p style="text-align: center;"><a href="https://www.youtube.com/watch?v=lFIIoFb40TE&list=TLPQMjcxMTIwMjIjZOIzALTw1w&index=3" target="_top" class="ke-link">https://www.youtube.com/watch?v=lFIIoFb40TE&list=TLPQMjcxMTIwMjIjZOIzALTw1w&index=3</a> </p><div class="figure-video" data-ke-type="video" data-video-url="https://www.youtube.com/watch?v=lFIIoFb40TE" data-video-host="youtube" data-video-play-service="daum_cafe" data-video-width="640" data-video-height="480" data-ke-style="alignCenter" data-video-thumbnail="https://scrap.kakaocdn.net/dn/bK7H4E/hyQHZh4PzD/ksfjXPJUK9U2pmVmFNYyO0/img.jpg?width=640&height=480&face=0_0_640_480" data-ke-mobile-mobileStyle="widthContent" data-video-origin-width="640" data-video-origin-height="480"><iframe src="https://www.youtube.com/embed/lFIIoFb40TE" width="640" height="480" frameborder="0" scrolling="no" allowfullscreen=""></iframe><div class="figcaption">자석 이야기로 '상대성 이론'을 이해시켜드립니다. '상대성 이론'과 N극과 S극을 당기는 이유 [자석과 스핀트로닉스 3/3화, KAIST 김갑진 교수]</div></div><p> </p>