{"id":6928,"date":"2015-09-22T22:06:30","date_gmt":"2015-09-23T05:06:30","guid":{"rendered":"http:\/\/www.hisark.com\/?p=6928"},"modified":"2015-09-22T22:06:30","modified_gmt":"2015-09-23T05:06:30","slug":"%eb%b9%9b%ec%9d%80-%eb%ac%b4%ec%97%87%ec%9d%bc%ea%b9%8c-2","status":"publish","type":"post","link":"http:\/\/www.hisark.com\/?p=6928","title":{"rendered":"\ube5b\uc740 \ubb34\uc5c7\uc77c\uae4c?"},"content":{"rendered":"

\"light\"<\/a><\/p>\n

 <\/p>\n

\ud558\ub098\ub2d8\uc740 \ucc3d\uc138\uae30(\ucc3d 1<\/b>:1<\/b>)\uc5d0\uc11c \uc2dc\uac04\uacfc \uacf5\uac04\uacfc \ubb3c\uc9c8\uc744 \ucc3d\uc870\ud558\uc2dc\uace0 \uace7 \ub9d0\uc500\uc73c\ub85c \ube5b\uc774 \uc788\uc73c\ub77c(\ucc3d1<\/b>:3<\/b>)\ud558\uc5ec \ubb3c\uc9c8 \uccb4\uacc4\ub97c \uc644\uc131\ud558\uc168\ub2e4. \ubb3c\ub9ac\uacc4\ub294 \uc774 \ub124\uac00\uc9c0 \uc694\uc18c\uac00 \uc5f0\ud569\ub418\uc5b4 \uc788\uc5b4\uc11c \uc5b4\ub290 \ud558\ub098 \ub3c5\ub9bd\uc801\uc778 \uc874\uc7ac\ub97c \uc0dd\uac01\ud560 \uc218 \uc5c6\ub2e4. \uc624\ub298\ub0a0 \uc2dc\uac04\uacfc \uacf5\uac04\uc744 \ub098\ub20c \uc218 \uc5c6\uae30 \ub54c\ubb38\uc5d0 \ud568\uaed8 \ubb36\uc5b4 \ud558\ub098\uc758 \uc2dc\uacf5(space<\/b>–time<\/b>)\uc73c\ub85c \ub2e4\ub8ec\ub2e4. \ub610 \uacf5\uac04\uc744 \uc810\uc720\ud558\uace0 \uc788\ub294 \ubb3c\uc9c8, \uc774 \ub458\uc744 \uc11c\ub85c \ubd84\ub9ac\ud574 \ub0bc \uc218 \uc5c6\ub2e4. \uadf8\ub9ac\uace0 \ube5b\uc774 \uc5c6\ub294 \uc2dc\uac04\uacfc \ubb3c\uc9c8\uc744 \uc0c1\uc0c1\ud560 \uc218 \uc5c6\ub294 \uac83\uc73c\ub85c \uc774\ud574\ud558\uace0 \uc788\ub2e4. \uadf8\ub7ec\uba74 \ube5b\uc740 \ubb34\uc5c7\uc77c\uae4c?<\/p>\n

\uc6b0\uc8fc\uc5d0\uc11c \ube5b\uc740 \uadfc\ubcf8\uc801\uc778 \uc5d0\ub108\uc9c0\uc774\ub2e4. \uc6b0\uc8fc\ub294 \uc774 \ube5b \uc5d0\ub108\uc9c0\ub85c \uac00\ub4dd \ucc28 \uc788\ub2e4. \uc5ec\uae30\uc11c \ube5b\uc740 \uc6b0\ub9ac \ub208\uc73c\ub85c \ubcfc \uc218 \uc788\ub294 \uac00\uc2dc\uad11\uc120\uacfc \ubd88\uac00\uc2dc \uc601\uc5ed\uc758 \ubaa8\ub4e0 \uac83\uc744 \ub9d0\ud55c\ub2e4. \ud504\ub9ac\uc998\uc744 \ud1b5\uacfc\ud558\ub294 \ube5b\uc740 \ube68\uc8fc\ub178\ucd08\ud30c\ub0a8\ubcf4 7<\/b>\uac1c \ubb34\uc9c0\uac1c \uc0c9\uc73c\ub85c \ubd84\uad11\ub41c\ub2e4. \uc0ac\ub78c\uc758 \ub208\uc740 \ud30c\uc7a5\uc774 \uae34 \uc801\uc0c9(800<\/b>\ub098\ub178\ubbf8\ud130)\ubd80\ud130 \ubcf4\ub77c\uc0c9(400<\/b>\ub098\ub178\ubbf8\ud130)\uae4c\uc9c0 \ubcfc \uc218 \uc788\ub2e4. \uac74\uac15\ud55c \ub208 \uc77c\uc9c0\ub77c\ub3c4 \uc801\uc0c9 \ubcf4\ub2e4 \ud30c\uc7a5\uc774 \uae34 \uc801\uc678\uc120\uacfc \ub610 \ubcf4\ub77c\uc0c9 \ubcf4\ub2e4 \ud30c\uc7a5\uc774 \uc9e7\uc740 \uc790\uc678\uc120\uc744 \ubcfc \uc218 \uc5c6\ub2e4.<\/p>\n

\uc624\ub298\ub0a0 \uacfc\ud559\uc790\ub4e4\uc740 \ube5b\uc744 \uc804\uc790\uae30\uc801 \ubaa8\ub4e0 \uc601\uc5ed\uc758 \uc5d0\ub108\uc9c0\uc778 \uc804\uc790\uae30\ud30c(Electromagnetic wave)\ub85c \uc5ec\uae34\ub2e4. \ubb3c\ub860 \uc804\uc790\uae30\ud30c \uc678\uc5d0 \ub610 \ub2e4\ub978 \ud615\ud0dc\ub3c4 \uc788\uaca0\uc9c0\ub9cc \ud604\uc7ac \uacfc\ud559\uae30\uc220\uc774 \uac10\uc9c0\ud560 \uc218 \uc788\ub294 \uc5d0\ub108\uc9c0\ub294 \ud30c\uc7a5\uc774 \uae34 \uc804\ud30c\uc5d0\uc11c\ubd80\ud130 \ud30c\uc7a5\uc774 \ub9e4\uc6b0 \uc9e7\uc740 \uac10\ub9c8\uc120\uae4c\uc9c0\uc774\ub2e4. \uadf8\ub7ec\ub2c8\uae4c \uc6b0\ub9ac \ub208\uc73c\ub85c \ubcfc \uc218 \uc788\ub294 \uac00\uc2dc \uad11\uc120\uc740 \uadf9\ud788 \uc881\uc740 \uc601\uc5ed\uc758 \ube5b\uc778 \uc148\uc774\ub2e4.<\/p>\n

\uc9c4\uacf5\uc5d0\uc11c \ube5b\uc758 \uc18d\ub3c4\ub294 299,792.458 m\/s\ub85c \ucd08\ub2f9 \uc57d30\ub9cc Km\ub97c \uc774\ub3d9\ud558\ub294 \uc18d\ub3c4\uc774\ub2e4. \ube5b\uc774 1\ucd08 \ub3d9\uc548 \uc774\ub3d9\ud558\ub294 \uac70\ub9ac\uac00 1\uad11\ucd08(light second)\uac70\ub9ac\uc774\uace0 \ube5b\uc774 1\ub144 \ub3d9\uc548 \ub2ec\ub9ac\ub294 \uac70\ub9ac\ub97c 1\uad11\ub144(light year= 9.5 x1012Km)\uc73c\ub85c \uc815\uc758\ud558\uba70 \ucc9c\ubb38\ud559\uc5d0\uc11c \uad11\ub144\uc774 \uac70\ub9ac\uc758 \uae30\ubcf8 \ub2e8\uc704\uc774\ub2e4. \ucc9c\ubb38\ud559\uc5d0\uc11c \uc774\ub807\uac8c \uc9c4\uacf5\uc5d0\uc11c \ube5b\uc758 \uc774\ub3d9 \uc18d\ub3c4\ub97c \uac70\ub9ac\uc758 \uae30\uc900\ucc99\ub3c4\ub85c \uc0ac\uc6a9\ud55c\ub2e4.<\/p>\n

\uadf8\ub7f0\ub370 \uc9c4\uacf5\uc5d0\uc11c \ube5b\uc758 \uc18d\ub3c4\uac00 \uc808\ub300\uc801\uc774\uba70 \uc6b0\uc8fc\uc5d0\uc11c \uac00\uc7a5 \ube60\ub978 \uc18d\ub3c4\uc778 \uac83\uc73c\ub85c \uacfc\uac70\uc5d0 \uc0dd\uac01\ud558\uc600\uc9c0\ub9cc[1<\/b>] \uc624\ub298\ub0a0 \ube5b\uc758 \uc18d\ub3c4\ub294 \uc911\ub825\uc7a5\uc774\ub098 \uc790\uae30\uc7a5 \ub4f1 \ud1b5\uacfc\ud558\ub294 \uc601\uc5ed\uc5d0 \uc601\ud5a5\uc744 \ubc1b\ub294\ub2e4\ub294 \uac83\uc774 \ud1b5\ub150\uc774\ub2e4. 2000<\/b>\ub144 NEC<\/b>\ub294 \uc138\uc298\ucc54\ubc84\ub97c \ud1b5\uacfc\ud558\ub294 \ube5b\uc5d0 \ub300\ud55c \uc2e4\ud5d8\uc744 \ud1b5\ud574 \ube5b\uc758 \uc18d\ub3c4\uac00 \uc9c4\uacf5\uc5d0\uc11c \ubcf4\ub2e4 300<\/b>\ubc30 \uc774\uc0c1 \ub354 \ube68\ub77c\uc9d0\uc744 \ud655\uc778\ud55c \ubc14\uc788\ub2e4. \uc774\ub807\uac8c \uc2e4\ud5d8\uc744 \ud1b5\ud558\uc5ec \uc774\uc81c \uc6b0\uc8fc\ub97c \ub2ec\ub9ac\ub294 \ube5b\uc774 \uc808\ub300\uc801\uc778 \uae30\uc900\uc744 \uc81c\uacf5\ud558\ub294 \ubb3c\ub9ac\ub7c9\uc774 \uc544\ub2d8\uc744 \ubcf4\uc5ec \uc8fc\uac8c \ub41c \uac83\uc774\ub2e4<\/p>\n

\ube5b\uc758 \ud2b9\uc131\uc5d0 \ub300\ud55c \uc5f0\uad6c\ub294 1609<\/b>\ub144 \uac08\ub9b4\ub808\uc774\uac00 \ub80c\uc988\ub97c \uc774\uc6a9\ud55c \ub9dd\uc6d0\uacbd\uc744 \uc81c\uc791\ud568\uc73c\ub85c \uc2dc\uc791\ub418\uc5c8\ub2e4\uace0 \ubcfc \uc218 \uc788\ub2e4. \uadf8\ud6c4 \ub9dd\uc6d0\uacbd\uc744 \ud1b5\ud558\uc5ec \ucc9c\uccb4 \uad00\uce21\uc774 \uc6a9\uc774\ud574 \uc84c\uace0, \uac70\uc758 \uac19\uc740 \uc2dc\uae30\uc5d0 \ud604\ubbf8\uacbd\uc774 \uac1c\ubc1c\ub418\uc5b4\uc11c \uc138\uade0\uacfc \uac19\uc740 \uc791\uc740 \ubbf8\ubb3c\ub4e4\uc744 \uad00\ucc30\ud560 \uc218 \uc788\uac8c \ub418\uc5c8\ub2e4. \ub530\ub77c\uc11c \uac70\uc2dc\uc758 \uc138\uacc4\uc778 \ucc9c\uccb4\uc640 \ubbf8\uc2dc\uc758 \uc138\uacc4\uc778 \ubb3c\uc9c8 \ub0b4\ubd80\uc5d0 \ub300\ud558\uc5ec \uae4a\uc774 \uc788\ub294 \uc5f0\uad6c\uac00 \uac00\ub2a5\ud558\uac8c \ub418\uc5c8\ub2e4.<\/p>\n

\ub80c\uc988\ub97c \ud1b5\ud55c \ube5b\uc758 \ubc18\uc0ac\uc640 \uad74\uc808 \ub4f1 \ud2b9\uc131\uc5d0 \ub300\ud55c \uc5f0\uad6c \uc678\uc5d0 \ube5b\uc758 \ubcf8\uc9c8\uc5d0 \ub300\ud55c \uc5f0\uad6c \ub610\ud55c \uacc4\uc18d\ub418\uc5b4\uc654\ub2e4. \ud76c\ub78d\uc2dc\ub300 \uc6d0\uc790\uc124\uc744 \uc8fc\uc7a5\ud55c \ub370\ubaa8\ud06c\ub9ac\ud1a0\uc2a4 (Democritus\u00a0<\/b>460<\/b>–370BC<\/b>)\ub294 \ube5b\uc744 \uc5ec\ub7ec \uac00\uc9c0 \uc0c9\uc744 \uac00\uc9c4 \uc791\uc740 \uc54c\ub9f9\uc774\ub4e4\ub85c \uc0dd\uac01\ud558\uc600\ub2e4. 17<\/b>\uc138\uae30\uc5d0 \ud638\uc774\uac90\uc2a4(Christian Huygens<\/b>)\ub294 \ube5b\uc744 \ub9c8\uce58 \ubb3c\uacb0\uce58\ub294 \ub9e4\uc9c8\ub85c \ubcf4\uace0 \ud30c\ub3d9\uc124\uc744 \uc18c\uac1c\ud558\uc600\uc9c0\ub9cc, 18<\/b>\uc138\uae30 \ucd08 \ub274\ud1a4\uc774 \uc785\uc790\uc124\uc744 \uc9c0\uc9c0\ud568\uc73c\ub85c\uc368 \ud55c \ub3d9\uc548 \ube5b\uc740 \uc785\uc790\ub77c\uace0 \uc778\uc815\ub418\uc5b4 \uc654\ub2e4. \uadf8\ub7ec\ub098 1801<\/b>\ub144 \uc601\uad6d\uc758 \uc601(Thomas Young<\/b>: 1773<\/b>–1829<\/b>)\uc774 \ube5b\uc758 \uac04\uc12d\ud604\uc0c1\uc744 \uc2e4\ud5d8\uc801\uc73c\ub85c \ubc1c\uacac[3<\/b>], \ub2e4\uc2dc \ube5b\uc758 \ud30c\ub3d9\uc124\uc774 \uacfc\ud559\uc801 \uadfc\uac70\ub97c \uac16\uac8c \ub428\uc73c\ub85c\uc368 \uc785\uc790\uc124\uacfc \ud30c\ub3d9\uc124\uc774 \uc591\ub9bd\ud558\uac8c \ub418\uc5c8\ub2e4.<\/p>\n

\ud30c\ub3d9\uc124\uc774 \uc9c0\uc9c0\ub97c \ubc1b\uac8c \ub418\uc790 \uc774 \ubd84\uc57c\uc758 \uacfc\ud559\uc790\ub4e4\uc740 \uc6b0\uc8fc\uacf5\uac04\uc5d0 \ube5b\uc758 \ud30c\ub3d9\uc744 \uc804\ub2ec\ud560 \uc218 \uc788\ub294 \ub9e4\uc9c8(\uc5d0\ud14c\ub974)\uc744 \ucc3e\uae30 \uc2dc\uc791\ud558\uc600\uace0 \uc774 \ub9e4\uc9c8\uc744 \ud1b5\ud558\uc5ec \ube5b\uc758 \ubcf8\uc9c8\uc744 \uc124\uba85\ud574 \ubcf4\ub824\uace0 \ud558\uc600\uc73c\ub098 \ub9c8\uc774\ud074\uc190-\ubab0\ub9ac(Michelson<\/b>–Morley<\/b>)\uc758 \uc2e4\ud5d8\uc73c\ub85c \ube5b\uc758 \uc9c4\ud589\uc740 \ub9e4\uc9c8\uacfc \ubb34\uad00\ud55c \uac83\uc73c\ub85c \ub4dc\ub7ec\ub098\uac8c \ub418\uc5c8\ub2e4.[4<\/b>] 1864<\/b>\ub144 \ub9e5\uc2a4\uc6f0(Maxwell<\/b>)\uc740 \uc5ed\ud559\uc5d0 \ud3ec\ud568\ub418\uc9c0 \uc54a\ub294 \uc0c8\ub85c\uc6b4 \uc804\uc790\uae30 \uc774\ub860\uc744 \uc644\uc131\ud558\uc600\ub294\ub370, \uc774\ub97c \ud1b5\ud574\uc11c \ube5b\ub3c4 \ubcf8\uc9c8\uc801\uc73c\ub85c\ub294 \ud30c\uc7a5\uc774 \ub9e4\uc6b0 \uc9e7\uc740 \uc804\uc790\uae30\ud30c\ub85c \ubcf4\uac8c \ub418\uc5c8\ub2e4. \uadf8\ub7ec\ub098 20\uc138\uae30 \ucd08 \ub9e5\uc2a4\uc6f0\uc758 \uc804\uc790\uae30\ud30c \uc774\ub860\uc73c\ub85c \uc124\uba85\ud560 \uc218 \uc5c6\ub294 \uae08\uc18d \ud45c\uba74\uc5d0 \ube5b\uc744 \ube44\ucd9c \ub54c \uc804\uc790\uac00 \ud280\uc5b4\ub098\uc624\ub294 \uad11\uc804\ud6a8\uacfc \ud604\uc0c1\uc774 \uc2e4\ud5d8\uc744 \ud1b5\ud574\uc11c \ud655\uc778\ub428\uc5d0 \ub530\ub77c\uc11c \ube5b\uc758 \ubcf8\uc9c8\uc5d0 \ub300\ud55c \uc774\ud574\ub294\u00a0\ub610 \ubcbd\uc5d0 \ubd80\ub52a\ud788\uac8c \ub418\uc5c8\ub2e4.<\/p>\n

\uc774 \uad11\uc804\ud6a8\uacfc\ub97c \uc124\uba85\ud558\uae30 \uc704\ud574 \uc544\uc778\uc26c\ud0c0\uc778\uc740 1905\ub144 \uad11\uc591\uc790 \uac00\uc124\uc744 \uc81c\uc548\ud558\uc600\ub2e4. \uc774 \uac00\uc124\uc740 \ubd88\uc5f0\uc18d\uc801\uc778 \uc5d0\ub108\uc9c0 \ub369\uc5b4\ub9ac \uac1c\ub150\uc73c\ub85c \ube5b\uc744 \uc124\uba85\ud55c\ub2e4. \uc544\uc778\uc288\ud0c0\uc778\uc740 \uc774 \uac00\uc124\ub85c \uc591\uc790\ub860\uc758 \ubc1c\uc804\uc5d0 \ud06c\uac8c \uae30\uc5ec\ud558\uc600\uace0 \ube5b\uc5d0 \ub300\ud55c \ud604\ub300\uc801 \ud574\uc11d\uc778 \ud30c\ub3d9-\uc785\uc790 \uc774\uc911\uc131\uc758 \uac1c\ub150\uc744 \ud655\uc7a5\uc2dc\ucf30\ub2e4. \uadf8 \uacb0\uacfc \uc785\uc790\uc124\uacfc \ud30c\ub3d9\uc124\uc744 \ubaa8\ub450 \uc870\ud654\uc2dc\ud0a8 \uad11\uc591\uc790(Photon)\uc758 \uac1c\ub150\uc73c\ub85c \ube5b\uc744 \uc124\uba85\ud558\uac8c \ub418\uc5c8\ub2e4.<\/p>\n

\uc5ec\uae30\uc11c \uc8fc\ubaa9\ud560 \uac83\uc740 \ube5b \ubfd0\ub9cc \uc544\ub2c8\ub77c \ud6c4\uc5d0 \ubc1c\uacac\ub41c \ubaa8\ub4e0 \ub2e4\ub978 \ubbf8\ub9bd\uc790\ub4e4\ub3c4 \ud30c\ub3d9\uacfc \uc785\uc790\uc758 \uc774\uc911\uc131\uc744 \ud568\uaed8 \uac16\ub294 \uac83\uc73c\ub85c \ubc1d\ud600\uc9c0\uace0 \uc788\ub2e4\ub294 \uac83\uc774\ub2e4. \uc544\ubb34\ud2bc \uc9c0\uae08\uae4c\uc9c0 \ub9ce\uc740 \uacfc\ud559\uc790\ub4e4\uc774 \ube5b\uc758 \ubcf8\uc9c8\uc5d0 \ub300\ud558\uc5ec \uc5ec\ub7ec \ud559\uc124\ub85c \uc124\uba85\ud558\ub824\uace0 \uc2dc\ub3c4\ud558\uc600\uc9c0\ub9cc, \uadf8\ub7ec\ub098 \uacfc\uc5f0 \ube5b\uc774\ub780 \uad81\uadf9\uc801\uc73c\ub85c \ubb34\uc5c7\uc778\uac00? \uc21c\uc218\ud55c \uc785\uc790\ub3c4 \uc544\ub2c8\uace0 \uc21c\uc218\ud55c \ud30c\ub3d9\ub3c4 \uc544\ub2cc \ub450 \uac00\uc9c0 \uc131\uc9c8\uc744 \ud568\uaed8 \uac16\ub294 \uc874\uc7ac\ub77c\uace0 \ub9d0\ud560 \uc218 \uc788\uc744 \ubfd0\uc774\ub2e4. \uc774\ub807\uac8c \uacfc\ud559\uc790\ub4e4\uc5d0\uac8c \ube5b\uc5d0 \ub300\ud55c \uadf8 \uc2e4\uccb4\ub294 \uc544\uc9c1\ub3c4 \uaddc\uba85\ub418\uc9c0 \uc544\ub2c8\ud55c \ubbf8\uc2a4\ud14c\ub9ac\uc778 \uac83\uc774\ub2e4.<\/p>\n

\ud558\ub098\ub2d8\uaed8\uc11c \uc6a5\uc5d0\uac8c \u201c\ube5b\uc774 \uc5b4\ub514\uc5d0\uc11c \uc624\uace0, \uc5b4\ub460\uc774 \uc5b4\ub514\ub85c \uac00\ub294\uc9c0 \uc544\ub290\ub0d0?\u201d(\uc6a538:19)\ub77c\uace0 \ubb3c\uc73c\uc2e4 \ub54c\ub85c\ubd80\ud130 \uc218\ucc9c \ub144\uc774 \ud758\ub800\uc9c0\ub9cc, \ubb3c\ub9ac\ud559\uc740 \ube5b\uc774 \uc815\ud655\ud788 \ubb34\uc5c7\uc778\uc9c0 \uc544\uc9c1 \ubaa8\ub974\uba70, \uc5b4\ub5bb\uac8c \uc874\uc7ac\ud558\uac8c \ub418\uc5c8\ub294\uc9c0\ub294 \ub354\ub354\uc6b1 \ub2f5\ud560 \uc218 \uc5c6\ub2e4. \uadf8\ub807\ub2e4. \uc778\uac04\uc740 \ube5b\uc758 \uadfc\uc6d0\uc5d0 \ub300\ud574 \uc131\uacbd\uc744 \ub5a0\ub098\uc11c \uacb0\ucf54 \ub2f5\uc744 \uc54c \uc218 \uc5c6\ub2e4. \ud558\ub098\ub2d8\uc740 \uc9c0\uae08\ub3c4 \uc6b0\ub9ac\uc5d0\uac8c \ube5b\uc758 \ub180\ub77c\uc6b4 \ud2b9\uc131\ub4e4\uc744 \ud1b5\ud574 \ube5b\uc744 \ub9cc\ub4dc\uc2e0 \uadf8 \uccab\uc9f8 \ub0a0\uc758 \uba85\ub839\uc5d0 \ub300\ud574 \uc0c1\uae30\uc2dc\ud0a4\uc2e0\ub2e4.<\/p>\n

\u201c\ud558\ub098\ub2d8\uc774 \uc774\ub974\uc2dc\ub418 \ube5b\uc774 \uc788\uc73c\ub77c \ud558\uc2dc\ub2c8 \ube5b\uc774 \uc788\uc5c8\uace0, \uadf8 \ube5b\uc774 \ud558\ub098\ub2d8\uc774 \ubcf4\uc2dc\uae30\uc5d0 \uc88b\uc558\ub354\ub77c\u201d \u00a0(\ucc3d1:3,4).<\/p>\n","protected":false},"excerpt":{"rendered":"

\ud558\ub098\ub2d8\uc740 \ucc3d\uc138\uae30(\ucc3d 1:1)\uc5d0\uc11c \uc2dc\uac04\uacfc \uacf5\uac04\uacfc \ubb3c\uc9c8\uc744 \ucc3d\uc870\ud558\uc2dc\uace0 \uace7 \ub9d0\uc500\uc73c\ub85c \ube5b\uc774 \uc788\uc73c\ub77c(\ucc3d1:3)\ud558\uc5ec \ubb3c\uc9c8 \uccb4\uacc4\ub97c \uc644\uc131\ud558\uc168\ub2e4. \ubb3c\ub9ac\uacc4\ub294 \uc774 \ub124\uac00\uc9c0 \uc694\uc18c\uac00 \uc5f0\ud569\ub418\uc5b4 \uc788\uc5b4\uc11c \uc5b4\ub290 \ud558\ub098 \ub3c5\ub9bd\uc801\uc778 \uc874\uc7ac\ub97c \uc0dd\uac01\ud560 \uc218 \uc5c6\ub2e4. \uc624\ub298\ub0a0 \uc2dc\uac04\uacfc \uacf5\uac04\uc744 \ub098\ub20c \uc218 \uc5c6\uae30 \ub54c\ubb38\uc5d0 \ud568\uaed8 \ubb36\uc5b4 \ud558\ub098\uc758 \uc2dc\uacf5(space-time)\uc73c\ub85c \ub2e4\ub8ec\ub2e4. \ub610 \uacf5\uac04\uc744 \uc810\uc720\ud558\uace0 \uc788\ub294 \ubb3c\uc9c8, \uc774 \ub458\uc744 \uc11c\ub85c \ubd84\ub9ac\ud574 \ub0bc \uc218 \uc5c6\ub2e4. \uadf8\ub9ac\uace0 \ube5b\uc774 \uc5c6\ub294 \uc2dc\uac04\uacfc \ubb3c\uc9c8\uc744 \uc0c1\uc0c1\ud560 \uc218 \uc5c6\ub294 \uac83\uc73c\ub85c \uc774\ud574\ud558\uace0 \uc788\ub2e4. \uadf8\ub7ec\uba74 \ube5b\uc740 \ubb34\uc5c7\uc77c\uae4c?<\/p>\n

\uc6b0\uc8fc\uc5d0\uc11c \ube5b\uc740 \uadfc\ubcf8\uc801\uc778 \uc5d0\ub108\uc9c0\uc774\ub2e4. \uc6b0\uc8fc\ub294 \uc774 \ube5b \uc5d0\ub108\uc9c0\ub85c \uac00\ub4dd \ucc28 \uc788\ub2e4. \uc5ec\uae30\uc11c \ube5b\uc740 \uc6b0\ub9ac \ub208\uc73c\ub85c \ubcfc \uc218 \uc788\ub294 \uac00\uc2dc\uad11\uc120\uacfc \ubd88\uac00\uc2dc \uc601\uc5ed\uc758 \ubaa8\ub4e0 \uac83\uc744 \ub9d0\ud55c\ub2e4. \ud504\ub9ac\uc998\uc744 \ud1b5\uacfc\ud558\ub294 \ube5b\uc740 \ube68\uc8fc\ub178\ucd08\ud30c\ub0a8\ubcf4 7\uac1c \ubb34\uc9c0\uac1c \uc0c9\uc73c\ub85c \ubd84\uad11\ub41c\ub2e4. \uc0ac\ub78c\uc758 \ub208\uc740 \ud30c\uc7a5\uc774 \uae34 \uc801\uc0c9(800\ub098\ub178\ubbf8\ud130)\ubd80\ud130 \ubcf4\ub77c\uc0c9(400\ub098\ub178\ubbf8\ud130)\uae4c\uc9c0 \ubcfc \uc218 \uc788\ub2e4. \uac74\uac15\ud55c \ub208 \uc77c\uc9c0\ub77c\ub3c4 \uc801\uc0c9 \ubcf4\ub2e4 \ud30c\uc7a5\uc774 \uae34 \uc801\uc678\uc120\uacfc \ub610 \ubcf4\ub77c\uc0c9 \ubcf4\ub2e4 \ud30c\uc7a5\uc774 \uc9e7\uc740 \uc790\uc678\uc120\uc744 \ubcfc \uc218 \uc5c6\ub2e4.<\/p>\n

\uc624\ub298\ub0a0 \uacfc\ud559\uc790\ub4e4\uc740 \ube5b\uc744 \uc804\uc790\uae30\uc801 \ubaa8\ub4e0 \uc601\uc5ed\uc758 \uc5d0\ub108\uc9c0\uc778 \uc804\uc790\uae30\ud30c(Electromagnetic wave)\ub85c \uc5ec\uae34\ub2e4. \ubb3c\ub860 \uc804\uc790\uae30\ud30c \uc678\uc5d0 \ub610 \ub2e4\ub978 \ud615\ud0dc\ub3c4 \uc788\uaca0\uc9c0\ub9cc \ud604\uc7ac \uacfc\ud559\uae30\uc220\uc774 \uac10\uc9c0\ud560 \uc218 \uc788\ub294 \uc5d0\ub108\uc9c0\ub294 \ud30c\uc7a5\uc774 \uae34 \uc804\ud30c\uc5d0\uc11c\ubd80\ud130 \ud30c\uc7a5\uc774 \ub9e4\uc6b0 \uc9e7\uc740 \uac10\ub9c8\uc120\uae4c\uc9c0\uc774\ub2e4. \uadf8\ub7ec\ub2c8\uae4c \uc6b0\ub9ac \ub208\uc73c\ub85c \ubcfc \uc218 \uc788\ub294 \uac00\uc2dc \uad11\uc120\uc740 \uadf9\ud788 \uc881\uc740 \uc601\uc5ed\uc758 \ube5b\uc778 \uc148\uc774\ub2e4.<\/p>\n","protected":false},"author":1,"featured_media":6929,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[9],"tags":[],"_links":{"self":[{"href":"http:\/\/www.hisark.com\/index.php?rest_route=\/wp\/v2\/posts\/6928"}],"collection":[{"href":"http:\/\/www.hisark.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.hisark.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.hisark.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.hisark.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=6928"}],"version-history":[{"count":0,"href":"http:\/\/www.hisark.com\/index.php?rest_route=\/wp\/v2\/posts\/6928\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/www.hisark.com\/index.php?rest_route=\/wp\/v2\/media\/6929"}],"wp:attachment":[{"href":"http:\/\/www.hisark.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=6928"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.hisark.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=6928"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.hisark.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=6928"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}