{"id":18785,"date":"2017-05-27T10:27:52","date_gmt":"2017-05-27T01:27:52","guid":{"rendered":""},"modified":"2025-04-28T03:54:41","modified_gmt":"2025-04-27T18:54:41","slug":"%ec%88%98%ed%95%99%ec%9c%bc%eb%a1%9c-%eb%b3%b4%eb%8a%94-%ec%84%b8%ec%83%81-%ea%b0%95%ec%97%b0-%ec%9b%90%ea%b3%a0","status":"publish","type":"post","link":"https:\/\/xn--o39aq20a8wf36f.kr\/?p=18785","title":{"rendered":"“\uc218\ud559\uc73c\ub85c \ubcf4\ub294 \uc138\uc0c1” \uac15\uc5f0 \uc6d0\uace0"},"content":{"rendered":"

<\/p>\n

*\uc804\ubd81\uc5b8\ub860\ubb38\ud654\uc6d0 \uc8fc\ucd5c\ub85c 5\uc6d4 18\uc77c \uc5f4\ub838\ub358 \ud2b9\uac15 \uc6d0\uace0\ub97c \uc62e\uaca8\uc2e3\uc2b5\ub2c8\ub2e4.<\/span><\/p>\n

\u201c<\/span>\uc548\uac1c \uc18d\uc744 \ud5e4\ub9e4\ub294 \uac83 \uac19\uc740 \uc774 \ubaa8\ub4e0 \ub17c\uc758\ub4e4\uc774 \ubb34\uc2a8 \uc18c\uc6a9\uc774 \uc788\uc2b5\ub2c8\uae4c<\/span>! <\/span>\uc120\uc0dd\ub2d8\uaed8\uc11c\ub294 \uadc0\uc871\uc774\uace0<\/span>, <\/span>\uc800\ub3c4 \uadc0\uc871\uc785\ub2c8\ub2e4<\/span>. <\/span>\uadf8\ub0e5 \uadc0\uc871\uc758 \uba85\uc608\ub97c \uac78\uace0 \uc774 \ub17c\uc81c\ub294 \ucc38\uc774\ub77c\uace0 \ub9d0\ud558\uc2ed\uc2dc\uc624<\/span>. <\/span>\uc81c\uac8c\ub294 \uadf8\uac70\uba74 \ucda9\ubd84\ud569\ub2c8\ub2e4<\/span>.\u201d <\/span><\/p>\n

18<\/span>\uc138\uae30\uc5d0 \uc218\ud559 \uc218\uc5c5\uc744 \ubc1b\ub358 \ud55c \uc81c\uc790\uac00 \uc2a4\uc2b9\uc5d0\uac8c \ub9d0\ud588\ub2e4\ub294 \uc77c\ud654\uc785\ub2c8\ub2e4\ub9cc<\/span>, <\/span>\ub2f9\uc2dc\ub85c\uc11c\ub294 \ucda9\ubd84\ud788 \uc788\uc744 \ubc95\ud55c \uc598\uae30\uc785\ub2c8\ub2e4<\/span>. <\/span>\uc624\ub298\ub0a0 \uc6b0\ub9ac\ub4e4\ub3c4 \ub204\uad6c\uc640 \uc598\uae30\ub97c \ub098\ub204\ub2e4\uac00 \ubcf4\uba74<\/span>, <\/span>\uc5b4\ub5a4 \uac83\uc774 \uc0ac\uc2e4\uc778\uc9c0 \uc544\ub2cc\uc9c0<\/span>, <\/span>\ub9de\ub294 \ub9d0\uc778\uc9c0 \ud2c0\ub9b0 \ub9d0\uc778\uc9c0<\/span>, <\/span>\uc560\ub9e4\ud560 \ub54c\uac00 \uc788\uc2b5\ub2c8\ub2e4<\/span>. \u2018<\/span>\ubc31\ubb38<\/span>(<\/span>\u767e\u805e<\/span>)<\/span>\uc774 \ubd88\uc5ec\uc77c\uacac<\/span>(<\/span>\u4e0d\u5982\u4e00\u898b<\/span>)\u2019<\/span>\uc774\ub77c\uace0 \ud558\uace0<\/span>, \u2018<\/span>\ubcf4\ub294 \uac83\uc774 \ubbff\ub294 \uac83\uc774\ub2e4<\/span>.(Seeing is believing.)’<\/span>\ub77c\uace0\ub3c4 \ud569\ub2c8\ub2e4\ub9cc<\/span>, <\/span>\ubb38\uc81c\ub294 \uc6b0\ub9ac\uac00 \uadf8\ub807\uac8c \ud655\uc2e0\uc744 \uac00\uc9c0\uace0 \uc788\ub294<\/span>, <\/span>\uc2dc<\/span>–<\/span>\uccad<\/span>–<\/span>\ud6c4<\/span>–<\/span>\ubbf8<\/span>–<\/span>\ucd09<\/span>(<\/span>\u8996\u807d\u55c5\u5473\u89f8<\/span>), 5<\/span>\uac10\uc774 \uadf8\ub9ac \ubbff\uc744 \uac83\uc774 \ubabb \ub41c\ub2e4\ub294 \uc810\uc5d0 \uc788\uc2b5\ub2c8\ub2e4<\/span>. <\/span>\uc99d\uba85\ub418\uc9c0 \uc54a\uc740 \ud604\uc0c1\uc740 \uc778\uc815\ud560 \uc218\uac00 \uc5c6\ub2e4\ub294 \uac83\uc740 \uacfc\ud559\uc758 \uae30\ubcf8\uc801 \uc790\uc790\uc138\uc785\ub2e4. <\/span>\uc5b4\ub5a4 \uc77c\ub85c \uc778\ud558\uc5ec \uae09\uc18d\ud558\uac8c \uc0ac\ud0dc\uac00 \ubc1c\uc804\ub418\uc5b4 \ub098\uc544\uac00\ub294 \uac83\uc744 <\/span>\u2018<\/span>\ubc29\uc544\uc1e0\ud6a8\uacfc<\/span>(trigger effect)’<\/span>\ub77c\uace0 \ubd80\ub985\ub2c8\ub2e4<\/span>. <\/span>\uc8fc\ub85c \uc0dd\ud0dc\uacc4\uc5d0 \uae09\uaca9\ud55c \ubcc0\ud654\ub97c \uc720\ubc1c\ud558\ub294 <\/span>\u2018<\/span>\uc870\uadf8\ub9cc \uc0ac\uac74<\/span>\u2019<\/span>\uc744 \ub73b\ud558\uc9c0\ub9cc<\/span>, <\/span>\uacfc\ud559\uc758 \ubc1c\uc804\uc5d0 \uc911\uc694\ud55c \uacc4\uae30\uac00 \ub418\ub294 \uacbd\uc6b0\uc5d0\ub3c4 \uc501\ub2c8\ub2e4<\/span>. <\/span>\uc778\ub958\ub294 \uc624\ub79c \uae30\uac04\uc5d0 \uac78\uccd0 \uc810\uc9c4\uc801\uc73c\ub85c \ubc1c\uc804\ud574 \uc654\uc2b5\ub2c8\ub2e4<\/span>. <\/span>\uc0ac\ud68c \uad6c\uc870\ub97c \uc1a1\ub450\ub9ac\uc9f8 \ubc14\uafd4 \ub193\uc740<\/span>, <\/span>\uae30\uc220\uc801\uc778 \uba74\uc5d0\uc11c<\/span>, <\/span>\ucd5c\ucd08\uc758 \ubc29\uc544\uc1e0\ud6a8\uacfc\ub294 \ubc29\uc9c1\uae30\uc5d0 \uc99d\uae30\uae30\uad00\uc744 \uc5f0\uacb0<\/span>(1787<\/span>\ub144<\/span>)<\/span>\ud588\uc744 \ub54c \uc774\ub904\uc84c\uc2b5\ub2c8\ub2e4<\/span>. <\/span>\uc601\uad6d\uc5d0 \uc124\uce58\ub41c \ubc29\uc9c1\uae30\uacc4 \uc218\ub294 <\/span>1813<\/span>\ub144\uae4c\uc9c0 <\/span>2400<\/span>\ub300\uc600\ub358 \uac83\uc774 <\/span>1833<\/span>\ub144\uc5d0\ub294 <\/span>85000<\/span>\ub300\ub85c \uc99d\uac00\ud588\ub2e4\uace0 \ud569\ub2c8\ub2e4<\/span>. <\/span>\uc804\uae30\ub85c \ub3d9\ub825\uc774 \ubc14\ub010 \uac83\uc740 <\/span>1866<\/span>\ub144 \uc9c0\uba58\uc2a4\uac00 \ubc1c\uc804\uae30\ub97c \ub9cc\ub4e4\uba74\uc11c\ubd80\ud130 \uc2dc\uc791\ub418\uc5c8\uc2b5\ub2c8\ub2e4<\/span>. <\/span>\uacfc\ud559\uc740 <\/span>1900<\/span>\ub144\uc744 \uae30\uc810\uc73c\ub85c<\/span>, <\/span>\ubaa8\ub4e0 \ubd84\uc57c\uc5d0\uc11c<\/span>, <\/span>\ub208\ubd80\uc2e0 \ubc1c\uc804\uc744 \uac70\ub4ed\ud558\uace0 \uc788\uc2b5\ub2c8\ub2e4<\/span>. <\/span>\uc218\ud559\uc740 \uacfc\ud559\uc801 \uc0ac\uc2e4\uc744 \ud45c\ud604\ud558\ub294 \uc5b8\uc5b4\uc785\ub2c8\ub2e4<\/span>. <\/span>\uacfc\ud559\uc801\uc778 \ud604\uc0c1\ub4e4\uc740 \uc5c4\uaca9\ud55c \ucd94\ub860 \ub05d\uc5d0 \uadf8 \uacb0\uacfc\uac00 \ub17c\ub9ac\uc801\uc73c\ub85c \uc99d\uba85\uc774 \ub418\uc5b4\uc57c \uc815\uc124\ub85c\uc11c \uc778\uc815\uc744 \ubc1b\uac8c \ub429\ub2c8\ub2e4. <\/span>\uc2dc\ub300\uac00 \ubc1c\uc804\ud558\uba74 \uadf8\uc5d0 \ub530\ub77c \uc5b8\uc5b4\ub3c4 \ub2ec\ub77c\uc9d1\ub2c8\ub2e4<\/span>. <\/span>\uacfc\ud559\uc744 \ud45c\ud604\ud558\ub294 \uc5b8\uc5b4\uc778 \uc218\ud559\ub3c4<\/span>, <\/span>\uacfc\ud559\uc774 \ubc1c\ub2ec\ud568\uc5d0 \ub530\ub77c<\/span>, <\/span>\uc0c8\ub85c\uc6b4 \uccb4\uc81c<\/span>, <\/span>\ub2ec\ub77c\uc9c4 \ud328\ub7ec\ub2e4\uc784\uc774 \ud544\uc694\ud558\uac8c \ub410\uc2b5\ub2c8\ub2e4<\/span>. \u2018<\/span>\uc218\ud559\uc774\ub780 \ubb34\uc5c7\uc774\uc5b4\uc57c \ud558\uace0<\/span>, <\/span>\uc5b4\ub5a4 \ubc29\ubc95\uc73c\ub85c \ubc1c\uc804 \uc2dc\ucf1c\uc57c \ub420 \uac83\uc778\uac00<\/span>\u2019<\/span>\uc5d0 \ub300\ud574 \ub9ce\uc740 \uc218\ud559\uc790\ub4e4\uc774 \uace0\uc2ec\uc744 \ud588\uc2b5\ub2c8\ub2e4<\/span>. <\/span>\uc18c\uc704<\/span>, \u2018<\/span>\uc218\ud559 \uae30\ucd08\ub860<\/span>\u2019<\/span>\uc774\ub77c\ub294 \uac83\uc785\ub2c8\ub2e4<\/span>. <\/span>\uc218\ud559\ubd84\uc57c\uc758 \ubc1c\uc804\uc5d0\uc11c \ubc29\uc544\uc1e0\ud6a8\uacfc\ub294 <\/span>\u2018<\/span>\uacf5\ub9ac<\/span>(axiom)<\/span>\ub780 \ubb34\uc5c7\uc778\uac00<\/span>\u2019<\/span>\uc5d0 \ub300\ud55c \uacac\ud574\uc5d0\uc11c\ubd80\ud130 \ube44\ub86f\ub410\uc2b5\ub2c8\ub2e4<\/span>. <\/span>\uc218\ud559\uc774\ub780 \uacf5\ub9ac\ub97c \ubc14\ud0d5\uc73c\ub85c \uc804\uac1c\ud574\uc57c \ud55c\ub2e4\ub294 \uac83\uc740 \uadf8\ub9ac\uc2a4 \uc2dc\ub300<\/span>, <\/span>\uc720\ud074\ub9ac\ub4dc<\/span>(300? B. C.), <\/span>\uc774\ub798\uc758 \uc804\ud1b5\uc774\uc5c8\uc2b5\ub2c8\ub2e4<\/span>. <\/span>\ub2e4\ub9cc<\/span>, \u2018<\/span>\uacf5\ub9ac<\/span>\u2019<\/span>\uc5d0 \ub300\ud55c \uacac\ud574\uac00<\/span>, \u2018<\/span>\ub108\ubb34 \ub2f9\uc5f0\ud55c \uc0ac\uc2e4<\/span>\u2019<\/span>\uc774\ub77c\ub294 \uad00\uc810\uc5d0\uc11c <\/span>\u2018<\/span>\ud544\uc694\ud55c \uac00\uc815\ub4e4<\/span>\u2019<\/span>\ub85c \ubc14\ub010 \ucc28\uc774\uac00 \uc788\uc744 \ubfd0\uc774\uc5c8\uc2b5\ub2c8\ub2e4<\/span>. <\/span>\uc624\ub298\ub0a0\uc758 \uc778\ub958\ubb38\uba85\uc740 \uc0b0\uc5c5\ud601\uba85 \uc774\ud6c4<\/span>, <\/span>\uc911\uc0b0\uce35\uc774 \ub450\ud130\uc6cc\uc9c0\uba74\uc11c \ub208\ubd80\uc2e0 \ubc1c\uc804\uc744 \ud588\uc2b5\ub2c8\ub2e4<\/span>. <\/span>\uc218\ud559\uc5d0\uc11c \uacf5\ub9ac\ub294 \uc0c8 \uc2dc\ub300\uc758 \ub2e4\uc591\uc131\uc744 \ub2f4\uc744 \uc218 \uc788\uac8c \ub418\uc5c8\uace0<\/span>, <\/span>\uacfc\ud559\uc801 \ud45c\ud604\uc774 \ud48d\ubd80\ud55c \uc5b8\uc5b4\uac00 \ub410\ub2e4\uace0 \ubcfc \uc218\uac00 \uc788\uc2b5\ub2c8\ub2e4. <\/span>\uc218\ud559\uc740 \uae30\ud638\uc758 \ud559\ubb38\uc785\ub2c8\ub2e4<\/span>. <\/span>\uc0ac\uc2e4 \uc6b0\ub9ac\ub4e4\uc774 \uc4f0\uace0 \uc788\ub294 \ub0b1\ub9d0 \uc790\uccb4\uac00 \uae30\ud638\ub77c\uace0 \ubcfc \uc218 \uc788\uc2b5\ub2c8\ub2e4<\/span>. <\/span>\uc6b0\ub9ac\uac00 \uc5b4\ub5a4 <\/span>\u2018<\/span>\ub300\uc0c1<\/span>\u2019<\/span>\uc744 \ub450\uace0<\/span>, \u2018<\/span>\ube68\uac1b\ub2e4<\/span>\u2019<\/span>\ub77c\uace0 \ubd80\ub978\ub2e4\uba74<\/span>, <\/span>\uadf8 \ub300\uc0c1\uc5d0 \ub300\ud55c \uc77c\ubd80\ubd84\uc758 \ud2b9\uc9d5\uc744 \ud45c\ud604\ud55c \uc148\uc785\ub2c8\ub2e4<\/span>. \u2018<\/span>\ube68\uac1b\ub2e4<\/span>\u2019<\/span>\ub77c\ub294 \ub9d0 \uac00\uc6b4\ub370\ub294<\/span>, <\/span>\uc6b0\ub9ac\uac00 \ubd24\ub358 <\/span>\u2018<\/span>\ub300\uc0c1<\/span>\u2019 <\/span>\ub9d0\uace0\ub3c4<\/span>, <\/span>\uc218\ub9ce\uc740 \ub610 \ub2e4\ub978 <\/span>\u2018<\/span>\ub300\uc0c1<\/span>\u2019<\/span>\ub4e4\ub3c4 \ud3ec\ud568\ud558\uace0 \uc788\uac8c \ub429\ub2c8\ub2e4<\/span>. <\/span>\uae30\ud638\ud654\ub294 \ucd94\uc0c1\ud654\uc785\ub2c8\ub2e4<\/span>. \u2018<\/span>\ube68\uac1b\ub2e4<\/span>\u2019<\/span>\ub77c\ub294 \ub9d0 \ub300\uc2e0\uc5d0 <\/span>\u2018<\/span>\ub178\ub797\ub2e4<\/span>\u2019<\/span>\ub85c \ubc14\uafc0 \uc218\ub3c4 \uc788\uace0<\/span>, <\/span>\uc544\uc608 <\/span>\u2018x x x\u2019<\/span>\ub85c \uc4f8 \uc218\ub3c4 \uc788\uae30 \ub54c\ubb38\uc785\ub2c8\ub2e4<\/span>. <\/span>\ucd94\uc0c1\ud654\ub294 \uac1c\ub150\uc744 \uc77c\ubc18\ud654 \uc2dc\ud0a4\uace0<\/span>, <\/span>\uc801\uc6a9\ud560 \uc218 \uc788\ub294 \ub300\uc0c1\uc744 \ud655\uc7a5\ud558\uac8c \ud569\ub2c8\ub2e4<\/span>. <\/span>\uc5b4\ub5a4 \uac1c\ub150\uc744 \uc5bc\ub9c8\ub9cc\ud07c \ud655\uc7a5 \uc2dc\ud0ac \uc218 \uc788\ub290\ub0d0\uac00<\/span>, <\/span>\uc5b4\ub5a4 \uba74\uc5d0\uc11c\ub294<\/span>, \u2018<\/span>\uc9c0\uc131\uc778\uc758 \ucc99\ub3c4<\/span>\u2019<\/span>\ub77c\uace0 \ub9d0 \ud560 \uc218\ub3c4 \uc788\uc744 \uac83\uc785\ub2c8\ub2e4<\/span>. <\/span>\uc608\ub97c \ub4e4\uba74<\/span>, \u2018<\/span>\uac19\ub2e4<\/span>\u2019<\/span>\ub77c\ub294 \ub9d0\uc744 \uc218\ud559\uc5d0\uc11c\ub294 <\/span>\u2018<\/span>\ub3d9\uce58\uad00\uacc4<\/span>\u2019<\/span>\ub85c \ub300\uc0c1\uc744 \uc77c\ubc18\ud654 \uc2dc\ud0a4\uace0<\/span>, <\/span>\ub098\uc544\uac00\uc11c \ucd94\uc0c1\ud654 \uc2dc\ud0b5\ub2c8\ub2e4<\/span>. \u2018<\/span>\uac19\ub2e4<\/span>\u2019<\/span>\ub97c \uc218\ud559\uc801\uc73c\ub85c \ud574\uc11d\ud574\ubcf4\ub2c8\uae4c<\/span>, \u2018<\/span>\ubc18\uc0ac<\/span>–<\/span>\ub300\uce6d<\/span>–<\/span>\ucd94\uc774<\/span>\u2019<\/span>\uc801\uc774\ub354\ub77c<\/span>, <\/span>\uadf8\ub7f0 \uc131\uc9c8\uc774 \uc788\ub294 \uad00\uacc4\ub77c\uba74 <\/span>\u2018<\/span>\uac19\ub2e4<\/span>\u2019<\/span>\ub77c\uace0 \ubcfc \uc218\ub3c4 \uc788\ub2e4\ub294 \uac83\uc774\uc9c0\uc694. <\/span>\uc2dc\uc778\ub4e4\uc774 \uc5b8\uc5b4\ub97c \ud65c\uc6a9\ud558\ub4ef\uc774 \uacfc\ud559\uc790\ub4e4\uc740 \uc218\ud559\uc744 \ub2e4\uc591\ud558\uac8c \ub9cc\ub4e4\uc5b4\uc11c\ub3c4 \uc501\ub2c8\ub2e4<\/span>. <\/span>\uadf8\uac83\uc740 \ubaa9\uc218\uac00 \uc5b4\ub5a4 \uac00\uad6c\ub97c \uc9dc\uae30 \uc704\ud558\uc5ec \uc0c8\ub85c\uc6b4 \uc5f0\uc7a5\uc744 \ub300\uc7a5\uc7a5\uc774\uc5d0\uac8c \ubd80\ud0c1\ud558\uc5ec \ub9cc\ub4dc\ub294 \uac83\uacfc \uac19\uc2b5\ub2c8\ub2e4<\/span>. <\/span>\ub9c8\uce58 \ubc14\uc774\uc62c\ub9b0\uc758 \uc55e\ub4b7\uba74 \ud14c\ub450\ub9ac\uc5d0 <\/span>\u2018<\/span>\ud37c\ud50c\ub9c1<\/span>(Purfling, <\/span>\uc138 \uacb9 \ub098\ubb34 \ub760\ub97c \ub123\uc740 \uc0c1\uac10<\/span>)\u2019<\/span>\uc744 \uc704\ud574 \ud2b9\uc218\ud55c \uc5f0\uc7a5\uc774 \ud544\uc694\ud55c \uac83\uacfc \ub9c8\ucc2c\uac00\uc9c0\uc785\ub2c8\ub2e4<\/span>. <\/span>\uc608\ub97c \ub4e4\uba74<\/span>, \u2018<\/span>\ud3c9\uade0<\/span>\u2019<\/span>\uc774\ub77c\ub294 \uac83\ub3c4 \uadf8\ub807\uc2b5\ub2c8\ub2e4<\/span>. <\/span>\uc5b4\ub5a4 \uacbd\uc6b0\ub294 \uc0b0\uc220\ud3c9\uade0<\/span>(A+B\/2)<\/span>\uc744 \uc4f0\uace0<\/span>, <\/span>\ub300\uc0c1\uc774 \ub2ec\ub77c\uc9c0\uba74<\/span>, <\/span>\uc5b4\ub5a4 \ub54c\ub294 \uae30\ud558\ud3c9\uade0 <\/span>\u221a<\/span>AB\/2 <\/span>\uc744 \uc4f0\uae30\ub3c4 \ud569\ub2c8\ub2e4<\/span>. <\/span>\ub610 \ub2e4\ub978 \uacbd\uc6b0\uc5d0\ub294<\/span>, <\/span>\uc870\ud654\ud3c9\uade0 <\/span>2AB\/(A+B)<\/span>\ub3c4 \uc4f0\uace0<\/span>, <\/span>\ud5e4\ub860\uc758 \ud3c9\uade0<\/span>(A+<\/span>\u221a<\/span>AB+B)\/3<\/span>\uc744 \uc4f0\uae30\ub3c4 \ud569\ub2c8\ub2e4<\/span>. <\/span>A=1, B=2<\/span>\uc778 \uacbd\uc6b0<\/span>, <\/span>\uc218\uc5f4 <\/span>\u20181 < 2\u00d7(1\u00d72)\/(1+2) < (1+2)\/2 < 2\u2019<\/span>\ub294 <\/span>\u20181 < 4\/3 < 3\/2 < 2\u2019<\/span>\uc774 \ub418\uc5b4<\/span>, <\/span>\uac01\uac01 \uc21c\uc815\ub960 \uc74c\uc815 <\/span>\u2018<\/span>\ub3c4 <\/span>< <\/span>\ud654 <\/span>< <\/span>\uc194<\/span>< <\/span>\ub3c4<\/span>\u2019<\/span>\uac00 \ub429\ub2c8\ub2e4<\/span>. <\/span>\ud5e4\ub860\uc758 \ud3c9\uade0\uc740 \uc6d0\ubfd4\ub300\uc758 \uc717\uba74\uc801\uacfc \ubc11\uba74\uc801\uc758 \ub113\uc774\uac00 \uac01 \uac01 <\/span>A, B<\/span>\uc77c \ub54c<\/span>, <\/span>\uac19\uc740 \uccb4\uc801\uc758 \uc6d0\uae30\ub465\uc758 \ub2e8\uba74\uc801\uc744 \uad6c\ud560 \ub54c \uc0ac\uc6a9\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4<\/span>. <\/span>\uc218\ud559\uc801 \uc131\uc9c8\ub4e4\uc740 \ubb18\ud558\uac8c \uc11c\ub85c \uad00\ub828\uc774 \ub418\uc5b4 \uc788\uc2b5\ub2c8\ub2e4<\/span>. <\/span>\uc6d0\uc8fc\uc728\uc778 <\/span>\u03c0<\/span>\ub294 \uc218\ud559\uc758 \uac01 \ubd84\uc57c \uacf3\uacf3\uc5d0\uc11c \ucd9c\ubab0\ud569\ub2c8\ub2e4<\/span>. <\/span>\ud558\ub098\uc758 \uc815\ub9ac\uac00 \uc77c\ubc18\ud654 \ub418\uc5b4 \ub2e4\uc591\ud55c \uacbd\uc6b0\uc5d0 \uc801\uc6a9\ub418\uae30\ub3c4 \ud569\ub2c8\ub2e4<\/span>. \u2018<\/span>\ud53c\ud0c0\uace0\ub77c\uc2a4 \uc815\ub9ac<\/span>\u2019<\/span>\ub294 \uc720\uba85\ud569\ub2c8\ub2e4<\/span>. <\/span>\uadf8 \ub0b4\uc6a9\uc740 \ub9ce\uc740 \uc0ac\ub78c\ub4e4\uc774 \uc54c\uace0 \uc788\ub4ef\uc774<\/span>, \u2018<\/span>\uc9c1\uac01\uc0bc\uac01\ud615\uc5d0\uc11c \ube57\ubcc0\uc758 \uc81c\uacf1\uc740 \ub2e4\ub978 \ub450 \ubcc0\ub4e4\uc758 \uc81c\uacf1\uc758 \ud569\uacfc \uac19\ub2e4<\/span>(c\u00b2=a\u00b2+b\u00b2)\u2019<\/span>\ub77c\ub294 \uac83\uc785\ub2c8\ub2e4<\/span>. <\/span>\uc774 \uc815\ub9ac\ub294 \uc9c1\uac01\uc0bc\uac01\ud615\uc774 \uc544\ub2cc \uacbd\uc6b0\uc5d0\ub3c4 \ud655\uc7a5\uc774 \uac00\ub2a5\ud569\ub2c8\ub2e4<\/span>. <\/span>\ubc11\ubcc0\uacfc \ub192\uc774 \uc0ac\uc774\uc758 \uac01\uc744 <\/span>\u03b1 <\/span>\ub77c\uace0 \ud55c\ub2e4\uba74<\/span>, c\u00b2=a\u00b2+b\u00b2<\/span>\u2576 <\/span>2ab cos<\/span>\u03b1<\/span>\uc758 \uad00\uacc4\uac00 \uc788\uae30 \ub54c\ubb38\uc785\ub2c8\ub2e4<\/span>. <\/span>\ub354\uad6c\ub098 \uae30\ud558\uc801\uc778 \uc99d\uba85\ubc29\ubc95\ub3c4<\/span>, <\/span>\uc9c1\uac01\uc0bc\uac01\ud615\uc778 \uacbd\uc6b0 \uac01 \ubcc0\uc744 \ud55c \ubcc0\uc73c\ub85c \ud558\ub294 \uc815\uc0ac\uac01\ud615\ub4e4\uc774\uc600\ub2e4\uba74<\/span>, <\/span>\uc77c\ubc18 \uc0bc\uac01\ud615\uc778 \uacbd\uc6b0 \uac01 \ubcc0\uc744 \ud55c \ubcc0\uc73c\ub85c \ud558\ub294 \ud3c9\ud589\uc0ac\ubcc0\ud615\uc774 \ub418\ub294 \ucc28\uc774\ub9cc \ub0a0 \ubfd0 \ubc29\ubc95\uc740 \uac19\uac8c \ub429\ub2c8\ub2e4<\/span>. <\/span>\ub098\uc544\uac00<\/span>, <\/span>\uc77c\ubc18\uc0ac\uba74\uccb4\uc5d0\ub3c4 \ud53c\ud0c0\uace0\ub77c\uc2a4 \uc815\ub9ac\uac00 \uc801\uc6a9\ub420 \uc218 \uc788\ub294 \uac83\uc744 \ubcf4\uba74<\/span>, \u201c<\/span>\uc218\ud559\uc774\ub780 \ucc38 \uc2e0\ube44\ud55c \uac83\uc774\uad6c\ub098<\/span>.\u201d <\/span>\ub77c\ub294 \uc0dd\uac01\uc774 \ub4e4\uc9c0 \uc54a\uc744 \uc218\uac00 \uc5c6\uc2b5\ub2c8\ub2e4<\/span>.\u00a0 <\/span>\uc138\uc0c1\uc744 \ubc14\ub77c\ubcf4\ub294 \uc2dc\uac01\uc740 \ub9ce\uc2b5\ub2c8\ub2e4<\/span>. <\/span>\uc218\ud559\uc740 \ud604\uc0c1\uc758 \ud2b9\uc9d5\uc744 \ucd94\uc0c1\ud654\ud558\uc5ec \ubcf4\ub2e4 \ud3ed \ub113\uace0 \ub2e4\uc591\ud55c \uc138\uc0c1\uc744 \uafc8\uafc9\ub2c8\ub2e4<\/span>. <\/span>\ubcf5\uc7a1\ud55c \uc0c1\ud669\uc744 \ub2e8\uc21c\ud654 \uc2dc\ucf1c\uc11c \ubaa8\uc758\uc2e4\ud5d8<\/span>(<\/span>\uc2dc\ubbac\ub808\uc774\uc158<\/span>)<\/span>\uc744 \ud560 \ub54c\ub3c4 \uc788\uc2b5\ub2c8\ub2e4<\/span>. <\/span>\uadf8 \uacb0\uacfc\ub4e4\uc740 \ud604\uc2e4\uc801\uc778 \uac83\uc77c \uc218\ub3c4 \uc788\uace0<\/span>, <\/span>\uc5b8\uc820\uac00 \uc2e4\ud604\uc774 \ub420 \uc218 \uc788\ub294 \uac83\ub3c4 \uc788\uc2b5\ub2c8\ub2e4<\/span>. <\/span>\uadf8\uac83\uc774 \uc218\ud559 \uc790\uccb4\uac00 \uac16\uace0 \uc788\ub294 \uac00\uce58<\/span>(its own right)<\/span>\ub77c\uace0 \ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4<\/span>. <\/span>\uc138\uc0c1\uc758 \uc5ec\ub7ec \ud604\uc0c1\uc744 \uc218\ud559\uc774\ub77c\ub294 \uc5b8\uc5b4\ub85c \ud45c\ud604\ud558\uace0 \ubc14\ub77c\ubcf8\ub2e4\ub294 \uac83\uc740 \ucc38\uc73c\ub85c \uace0\uadc0\ud558\uace0 \uc544\ub984\ub2e4\uc6b4 \uc77c\uc774 \uc544\ub2d0 \uc218\uac00 \uc5c6\uc2b5\ub2c8\ub2e4<\/span>.<\/span><\/p>\n

\uc744\ud558<\/span><\/p>\n

<\/p>\n","protected":false},"excerpt":{"rendered":"

*\uc804\ubd81\uc5b8\ub860\ubb38\ud654\uc6d0 \uc8fc\ucd5c\ub85c 5\uc6d4 18\uc77c \uc5f4\ub838\ub358 \ud2b9\uac15 \uc6d0\uace0\ub97c \uc62e\uaca8\uc2e3\uc2b5\ub2c8\ub2e4. \u201c\uc548\uac1c \uc18d\uc744 \ud5e4\ub9e4\ub294 \uac83 \uac19\uc740 \uc774 \ubaa8\ub4e0 \ub17c\uc758\ub4e4\uc774 \ubb34\uc2a8 \uc18c\uc6a9\uc774 \uc788\uc2b5\ub2c8\uae4c! \uc120\uc0dd\ub2d8\uaed8\uc11c\ub294 \uadc0\uc871\uc774\uace0, \uc800\ub3c4 \uadc0\uc871\uc785\ub2c8\ub2e4. \uadf8\ub0e5 \uadc0\uc871\uc758 \uba85\uc608\ub97c \uac78\uace0 \uc774 \ub17c\uc81c\ub294 \ucc38\uc774\ub77c\uace0 \ub9d0\ud558\uc2ed\uc2dc\uc624. \uc81c\uac8c\ub294 \uadf8\uac70\uba74 \ucda9\ubd84\ud569\ub2c8\ub2e4.\u201d 18\uc138\uae30\uc5d0 \uc218\ud559 \uc218\uc5c5\uc744 \ubc1b\ub358 \ud55c \uc81c\uc790\uac00 \uc2a4\uc2b9\uc5d0\uac8c \ub9d0\ud588\ub2e4\ub294 \uc77c\ud654\uc785\ub2c8\ub2e4\ub9cc, \ub2f9\uc2dc\ub85c\uc11c\ub294 \ucda9\ubd84\ud788 \uc788\uc744 \ubc95\ud55c \uc598\uae30\uc785\ub2c8\ub2e4. \uc624\ub298\ub0a0 \uc6b0\ub9ac\ub4e4\ub3c4 \ub204\uad6c\uc640 \uc598\uae30\ub97c \ub098\ub204\ub2e4\uac00 \ubcf4\uba74, \uc5b4\ub5a4 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