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홍차넷
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티타임
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- 다양한 주제에 대해 자유롭게 글을 작성하는 게시판입니다.
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전체기타일상/생각꿀팁/강좌방송/연예도서/문학영화의료/건강문화/예술경제생활체육과학/기술철학/종교정치요리/음식역사여행육아/가정IT/컴퓨터음악창작게임스포츠사회오프모임
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| Date |
Warning: Use of undefined constant reg_date - assumed 'reg_date' (this will throw an Error in a future version of PHP) in /home/redtea/html/a_skin/bbsd/view.php on line 53 20/05/21 14:22:56 Warning: Use of undefined constant mod_date - assumed 'mod_date' (this will throw an Error in a future version of PHP) in /home/redtea/html/a_skin/bbsd/view.php on line 56 수정됨 |
| Name | 시뮬라시옹 |
| Subject | 동시성의 상대성 |
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동시성의 상대성은 푸앵카레에 의하여 1900년에 소개되었고, 아인슈타인에 의해 상대성 이론에서 다시 등장하게 된다. 상상하기 힘든 두 이질적인 성질의 만남은, 그렇게 크나큰 충격의 여파를 우리에게 남겼다. 동시성의 상대성이란, 우리가 생각하는 '同時'의 개념이 '동시'가 아닐 수 있음을 시사한다. (3차원 공간 좌표와 시간 좌표로서 표시할 수 있는) 같은 사건을 서로 다른 관성 좌표계에서 보면 동시에 일어난 사건이라 생각되지 아니할 수 있다는 것을 의미한다. 다소 오해가 생길 수 있지만 쉽게 설명하자면 (상대적으로) 정지해있는 관성 좌표계에 있는 사람이 시속 50km/h로 달리는 차 안의 사람이 야구공을 수직으로 위아래로 던지는 사건을 관찰하게 되면 공이 수직으로 위아래로 움직이는 것이 아니라, 수평방향으로도 이동하는 일종의 Ω자 형의 궤적을 그리는 것으로 관찰하게 되는 것과 비슷하다. 이것이 공간좌표뿐 아니라 시간 좌표에서도 일어나는 것을 동시성의 상대성이라 부르는 것이다. 사진의 등장이 미술계에 큰 혼란을 빚었듯이, 동시성의 상대성의 등장은 미술계에 큰 충격을 주었다. 피카소의 입체주의부터 살바도르 달리의 초현실주의까지, 미술계와 자연과학은 크고 작은 상호작용을 주고받았다. 철학, 인문학 분야까지 사회 전반적으로 우리가 늘 생각해왔던 절대적인 동시라는 개념이 사실은 상대적이었다는 것은 하늘이 움직이는 줄만 알았던, 우리가 이 우주의 중심인 줄 알았던 이들에게 어느 날 지동설이 다가왔던 순간만큼이나 강렬한 무언가 였던 것이다. 인간이라는 존재는 늘 무언가 절대적인 것을 원한다. 우리의 '대단한' 뇌라는 것은 사실 어떠한 '기준'을 마련하지 못하면 그저 세포 덩어리에 불과한 것이기 때문에 우리는 필연적으로 무질서한 것에 공포심을 갖고 있다. 기준이 없다면 무엇을 어떻게 판단할 것인가, 사고할 것인가, 결정할 것인가. 그런데 사실 이 대단한 충격을 안겨준 동시성의 상대성이라는 개념은 우리의 실생활과는 그다지 큰 연관이 없다. 물론 알게 모르게 우리가 쓰고 있는 첨단기술에 그 개념이 사용되고 있을지라도, 무언가 시간을 기준으로 판단하고, 일상적인 사고를 하는 데 있어 그것의 등장과 이후에 달라질 것이 없다. 왜냐하면 빛의 속력(약 30만 km/s)과 비슷한 수준에 이르는 사건이 있어야만 동시성이 유의미한 상대성을 지니게 되기 때문이다. 그래서 나는 생각했다. 이거 생각보다 굳이 알 필요가 없는 거 아닐까 하고. 그렇게 쿨하게 잊고 사는 게 편해 보였다. 그런데 다른 동시성의 상대성이 나의 뇌리에 자꾸만 스쳐갔다. 나는 가끔 생각하곤 한다. 내가 올해, 이번 달, 이번 주, 오늘, 오후 이 시간에 이걸 이렇게 하는 동안 지구에 있는 누군가는 무엇을 하고 있을까. 굳이 빛의 속력까지 내 속력을 높이지 않아도, 우주까지 시야를 넓히지 않아도 이렇게 하면 동시성의 상대성을 느낄 수 있었다. 내가 웃고 있는 동안에도 누군가는 고통받고 있을 것이며, 내가 나 자신을 해치고자 생각하고 있을 때 누군가는 자신을 치장하고 있을 것이며, 내가 일하는 동안 누군가는 쉬고, 내가 쉬는 동안 누군가는 일하며 내가 먹는 동안 누군가는 굶으며, 내가 깨있는 동안 누군가는 잠들어 있다. 침대에 누워있는 이 순간에도 내 위층의 위층의 위층의 위층은 무엇을 하고 있을 까. 내 침대 위의 철근콘크리트 천장 그 위에 공간에는 무엇이 무엇을 하고 있는가. 지구 반대편의 너는 무엇을 하고 있니. 이 것을 결정하는 것은 무엇인가. 정치인가 경제인가 내 노력인가 운인가 가정환경인가 신인가 자연인가 나는 왜 1999년에 태어나 2020년 지금 여기에서 있는 것인가. 참 재밌는 상상이다. 그렇지만 이 상상과 현실을 헷갈리기 시작하면 미쳐버릴 것이 분명하다. 그래서 다들 의식하지 않고 사는 것인가? 그래서 우리가 빛의 속도에 이르지 못하는 것일까? 만약 모두가 이를 의식하고 살고, 그리하여 우리의 기술이 우리를 빛의 속도로 이동시켜주게 되면 이런 것들이 바뀔 것인가? 2020년이라는 것은 의미가 없어질 것인가? 그렇게 되면 현실이라는 것은 무엇일까? 동시라는 것은 무엇이 될까. 몇 가지 짐작 가는 것들이 있지만 이만 내 상상의 나래를 접어두련다. 왜냐면 나에겐 빛의 속도로 이동하지 않아도 느낄 수 있는 동시성의 상대성이 있기 때문이다. 같은 시간의 나는 무엇이든 될 수 있다. 어떠한 상태든 처지든 처할 수 있다. 그렇기에 나를 돌보고, 내가 처한 처지를 개선하며, 그게 좀 된다면 이제 남의 처지도 생각해볼 때가 아닐까. 그렇게 살자. 일상에서의 동시성의 상대성을 듬뿍 내 정신에 품자. 나를 사랑하자. Warning: Use of undefined constant no - assumed 'no' (this will throw an Error in a future version of PHP) in /home/redtea/html/a_skin/bbsd/view.php on line 133 Warning: Use of undefined constant no - assumed 'no' (this will throw an Error in a future version of PHP) in /home/redtea/html/a_skin/bbsd/view.php on line 146 Warning: Use of undefined constant vote - assumed 'vote' (this will throw an Error in a future version of PHP) in /home/redtea/html/a_skin/bbsd/view.php on line 161 2 이 게시판에 등록된 시뮬라시옹님의 최근 게시물 |
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Warning: Use of undefined constant no - assumed 'no' (this will throw an Error in a future version of PHP) in /home/redtea/html/pb/lib.php on line 614
Warning: Use of undefined constant ismember - assumed 'ismember' (this will throw an Error in a future version of PHP) in /home/redtea/html/pb/lib.php on line 616
Warning: Use of undefined constant x - assumed 'x' (this will throw an Error in a future version of PHP) in /home/redtea/html/pb/lib.php on line 618
Warning: Use of undefined constant name - assumed 'name' (this will throw an Error in a future version of PHP) in /home/redtea/html/pb/lib.php on line 618
Warning: Use of undefined constant x - assumed 'x' (this will throw an Error in a future version of PHP) in /home/redtea/html/pb/view.php on line 612
Warning: Use of undefined constant name - assumed 'name' (this will throw an Error in a future version of PHP) in /home/redtea/html/pb/view.php on line 612
Warning: Use of undefined constant reg_date - assumed 'reg_date' (this will throw an Error in a future version of PHP) in /home/redtea/html/pb/view.php on line 620
Warning: Use of undefined constant ismember - assumed 'ismember' (this will throw an Error in a future version of PHP) in /home/redtea/html/pb/view.php on line 628
Warning: Use of undefined constant no - assumed 'no' (this will throw an Error in a future version of PHP) in /home/redtea/html/pb/view.php on line 628
Warning: Use of undefined constant HTTP_HOST - assumed 'HTTP_HOST' (this will throw an Error in a future version of PHP) in /home/redtea/html/pb/view.php on line 640
Warning: Use of undefined constant name - assumed 'name' (this will throw an Error in a future version of PHP) in /home/redtea/html/pb/view.php on line 644
Warning: Use of undefined constant no - assumed 'no' (this will throw an Error in a future version of PHP) in /home/redtea/html/pb/view.php on line 646
Warning: Use of undefined constant no - assumed 'no' (this will throw an Error in a future version of PHP) in /home/redtea/html/pb/view.php on line 646
Warning: Use of undefined constant HTTP_HOST - assumed 'HTTP_HOST' (this will throw an Error in a future version of PHP) in /home/redtea/html/pb/cmt_replace.php on line 3
Warning: Use of undefined constant ismember - assumed 'ismember' (this will throw an Error in a future version of PHP) in /home/redtea/html/a_skin/bbsd/view_comment.php on line 6
Warning: Use of undefined constant file_name - assumed 'file_name' (this will throw an Error in a future version of PHP) in /home/redtea/html/a_skin/bbsd/view_comment.php on line 28
Warning: Use of undefined constant no - assumed 'no' (this will throw an Error in a future version of PHP) in /home/redtea/html/a_skin/bbsd/view_comment.php on line 65
143381 class="iamcmt" style="display:none;"> Warning: Use of undefined constant no - assumed 'no' (this will throw an Error in a future version of PHP) in /home/redtea/html/a_skin/bbsd/view_comment.php on line 66
143381 class='vcm '>
Warning: Use of undefined constant x - assumed 'x' (this will throw an Error in a future version of PHP) in /home/redtea/html/a_skin/bbsd/view_comment.php on line 70
Warning: Use of undefined constant x - assumed 'x' (this will throw an Error in a future version of PHP) in /home/redtea/html/a_skin/bbsd/view_comment.php on line 71
Warning: Use of undefined constant no - assumed 'no' (this will throw an Error in a future version of PHP) in /home/redtea/html/a_skin/bbsd/view_comment.php on line 76
Warning: Use of undefined constant ismember - assumed 'ismember' (this will throw an Error in a future version of PHP) in /home/redtea/html/a_skin/bbsd/view_comment.php on line 117
Warning: Use of undefined constant ismember - assumed 'ismember' (this will throw an Error in a future version of PHP) in /home/redtea/html/a_skin/bbsd/view_comment.php on line 118
Warning: Use of undefined constant ismember - assumed 'ismember' (this will throw an Error in a future version of PHP) in /home/redtea/html/a_skin/bbsd/view_comment.php on line 119
Warning: Use of undefined constant ismember - assumed 'ismember' (this will throw an Error in a future version of PHP) in /home/redtea/html/a_skin/bbsd/view_comment.php on line 120
Warning: Use of undefined constant ismember - assumed 'ismember' (this will throw an Error in a future version of PHP) in /home/redtea/html/a_skin/bbsd/view_comment.php on line 121
143381'> 작두
Warning: Use of undefined constant mod_date - assumed 'mod_date' (this will throw an Error in a future version of PHP) in /home/redtea/html/a_skin/bbsd/view_comment.php on line 133
Warning: Use of undefined constant no - assumed 'no' (this will throw an Error in a future version of PHP) in /home/redtea/html/a_skin/bbsd/view_comment.php on line 140
Warning: Use of undefined constant no - assumed 'no' (this will throw an Error in a future version of PHP) in /home/redtea/html/a_skin/bbsd/view_comment.php on line 140
Warning: Use of undefined constant reg_date - assumed 'reg_date' (this will throw an Error in a future version of PHP) in /home/redtea/html/a_skin/bbsd/view_comment.php on line 142
20/05/21 14:39
143381>삭제 주소복사
Warning: Use of undefined constant level - assumed 'level' (this will throw an Error in a future version of PHP) in /home/redtea/html/a_skin/bbsd/view_comment.php on line 150
마침 유튭에서 특수상대성 이론 영상 보고왔는데..반가운 주제군요
Warning: Use of undefined constant level - assumed 'level' (this will throw an Error in a future version of PHP) in /home/redtea/html/a_skin/bbsd/view_comment.php on line 158
Warning: Use of undefined constant password - assumed 'password' (this will throw an Error in a future version of PHP) in /home/redtea/html/a_skin/bbsd/view_comment.php on line 166
Warning: Use of undefined constant vote - assumed 'vote' (this will throw an Error in a future version of PHP) in /home/redtea/html/a_skin/bbsd/view_comment.php on line 171
Warning: Use of undefined constant vote - assumed 'vote' (this will throw an Error in a future version of PHP) in /home/redtea/html/a_skin/bbsd/view_comment.php on line 172
Warning: Use of undefined constant vote - assumed 'vote' (this will throw an Error in a future version of PHP) in /home/redtea/html/a_skin/bbsd/view_comment.php on line 172
Warning: Use of undefined constant no - assumed 'no' (this will throw an Error in a future version of PHP) in /home/redtea/html/a_skin/bbsd/view_comment.php on line 173
Warning: Use of undefined constant no - assumed 'no' (this will throw an Error in a future version of PHP) in /home/redtea/html/a_skin/bbsd/view_comment.php on line 173
Warning: Use of undefined constant vote - assumed 'vote' (this will throw an Error in a future version of PHP) in /home/redtea/html/a_skin/bbsd/view_comment.php on line 173
Warning: Use of undefined constant level - assumed 'level' (this will throw an Error in a future version of PHP) in /home/redtea/html/a_skin/bbsd/view_comment.php on line 158
Warning: Use of undefined constant password - assumed 'password' (this will throw an Error in a future version of PHP) in /home/redtea/html/a_skin/bbsd/view_comment.php on line 166
Warning: Use of undefined constant vote - assumed 'vote' (this will throw an Error in a future version of PHP) in /home/redtea/html/a_skin/bbsd/view_comment.php on line 171
Warning: Use of undefined constant vote - assumed 'vote' (this will throw an Error in a future version of PHP) in /home/redtea/html/a_skin/bbsd/view_comment.php on line 172
Warning: Use of undefined constant vote - assumed 'vote' (this will throw an Error in a future version of PHP) in /home/redtea/html/a_skin/bbsd/view_comment.php on line 172
Warning: Use of undefined constant no - assumed 'no' (this will throw an Error in a future version of PHP) in /home/redtea/html/a_skin/bbsd/view_comment.php on line 173
Warning: Use of undefined constant no - assumed 'no' (this will throw an Error in a future version of PHP) in /home/redtea/html/a_skin/bbsd/view_comment.php on line 173
Warning: Use of undefined constant vote - assumed 'vote' (this will throw an Error in a future version of PHP) in /home/redtea/html/a_skin/bbsd/view_comment.php on line 173
143381>
143381>
