{"id":9656,"date":"2017-02-17T10:48:09","date_gmt":"2017-02-17T08:48:09","guid":{"rendered":"http:\/\/www.ilkkimbuldu.com\/?p=9656"},"modified":"2018-02-17T11:13:05","modified_gmt":"2018-02-17T09:13:05","slug":"cetveli-kim-buldu","status":"publish","type":"post","link":"https:\/\/www.ilkkimbuldu.com\/?p=9656","title":{"rendered":"Cetveli kim buldu"},"content":{"rendered":"

Cetvel, uzunlu\u011fu boyunca e\u015fit aral\u0131klarla i\u015faretlenmi\u015f bir \u00f6l\u00e7\u00fc aletidir. Mesafeleri \u00f6l\u00e7mek i\u00e7in geometri, teknik resim, m\u00fchendislik gibi hayat\u0131n bir \u00e7ok alan\u0131nda kullan\u0131l\u0131r kullan\u0131l\u0131r.<\/p>\n

Cetvel \u00c7e\u015fitleri<\/h3>\n

Cetveller, uzun zamandan beri farkl\u0131 malzemelerden ve \u00e7e\u015fitli ebatlarda \u00fcretilmi\u015ftir. Baz\u0131lar\u0131 ah\u015fapt\u0131r. \u0130cat edildi\u011finden beri plastikler de kullan\u0131lm\u0131\u015ft\u0131r. Metal cetveller daha dayan\u0131kl\u0131 oldu\u011fu i\u00e7in at\u00f6lyelerde kullan\u0131l\u0131r. 1 metre uzunlu\u011funda metreler daha \u00e7ok tekstilde kuma\u015f \u00f6l\u00e7mede kullan\u0131l\u0131r.\u00a0 Kuma\u015f kesimi i\u00e7in masa kenar\u0131na yap\u0131lm\u0131\u015f masa cetvelide bulunmaktad\u0131r.\u00a0 K\u0131sa cetveller cepte ta\u015f\u0131mak i\u00e7in uygundur. Uzun \u00f6l\u00e7\u00fcmler i\u00e7in bant \u015feklinde sar\u0131lan in\u015faat\u00e7\u0131 \u015ferit metreler veya lazerli mesafe \u00f6l\u00e7me chazlar\u0131 kullan\u0131l\u0131r. \u00d6rne\u011fin bir ki\u015finin bel \u00f6l\u00e7\u00fcm\u00fcn\u00fc,\u00a0baca\u011f\u0131n \u00e7evresi gibi yerleri \u00f6l\u00e7mek i\u00e7in mezure ad\u0131 verilen plastik \u015ferit metreler ekullan\u0131l\u0131r.\u00a0\u00c7izim veya \u00f6l\u00e7me ile ilgili bir i\u015f yap\u0131yorsan\u0131z 30 cm uzunlu\u011funda cetvelin yak\u0131n\u0131n\u0131zda veya bir masan\u0131n \u00fczerinde bulundurulmas\u0131 yararl\u0131d\u0131r.<\/p>\n

Cetvelin Tarihi<\/h3>\n

\u00d6l\u00e7\u00fcm tarihinde, kubit, el, ayak gibi insan v\u00fccudu b\u00f6l\u00fcmlerine dayanan ve bu birimlerin konuma g\u00f6re uzunlu\u011fu de\u011fi\u015fen bir\u00e7ok mesafe birimi kullan\u0131lm\u0131\u015ft\u0131r. 18. y\u00fczy\u0131l\u0131n sonlar\u0131nda metrik sistem kullan\u0131ma girdi ve d\u00fcnyadaki hemen hemen t\u00fcm \u00fclkelerde farkl\u0131 derecelerde kabul edildi. En eski metre M.\u00d6 2650 y\u0131l\u0131na ait bir bak\u0131r ala\u015f\u0131ml\u0131 metredir. Alman arkeolojist Asuri Ekshard Unger taraf\u0131ndan Nippur’da kaz\u0131 yaparken bulunmu\u015ftur.<\/p>\n

Fildi\u015finden yap\u0131lan cetveller M.\u00d6. 1500’den \u00f6nce Indus Vadisi Uygarl\u0131k d\u00f6neminde kullan\u0131l\u0131yordu. Lothal’daki (M.\u00d6.2400) yap\u0131lan kaz\u0131larda, yakla\u015f\u0131k 1\/16 in\u00e7 (1,6 mm) aral\u0131klarla kalibre edilmi\u015f bir cetvel bulundu. Arkelojist Ian Whitelaw, Mohenjo-Daro cetvelinin 1.32 in\u00e7 (33.5 mm) kar\u015f\u0131l\u0131k gelen birimler halinde ayr\u0131ld\u0131\u011f\u0131n\u0131 ve bunlar\u0131n, ondal\u0131k alt b\u00f6l\u00fcmlerde, inan\u0131lmaz bir do\u011frulukla, 0,005 in\u00e7 (0,13 mm) i\u015faretlenmi\u015f oldu\u011funu g\u00f6rd\u00fc. B\u00f6lge genelinde bulunan antik tu\u011flalar bu birimlerle uyumlu boyutlara sahiptir.<\/p>\n

Cetveli kim icat etti<\/h3>\n

Anton Ullrich, 1851’de katlanan cetveli icat etti. Frank Hunt daha sonra esnek cetveli 1902’de icat etti.<\/p>\n","protected":false},"excerpt":{"rendered":"

Cetvel, uzunlu\u011fu boyunca e\u015fit aral\u0131klarla i\u015faretlenmi\u015f bir \u00f6l\u00e7\u00fc aletidir. Mesafeleri \u00f6l\u00e7mek i\u00e7in geometri, teknik resim, m\u00fchendislik gibi hayat\u0131n bir \u00e7ok alan\u0131nda kullan\u0131l\u0131r kullan\u0131l\u0131r. Cetvel \u00c7e\u015fitleri Cetveller, uzun zamandan beri farkl\u0131…<\/p>\n","protected":false},"author":1,"featured_media":9657,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[14],"tags":[],"class_list":["post-9656","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-egitim"],"_links":{"self":[{"href":"https:\/\/www.ilkkimbuldu.com\/index.php?rest_route=\/wp\/v2\/posts\/9656"}],"collection":[{"href":"https:\/\/www.ilkkimbuldu.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.ilkkimbuldu.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.ilkkimbuldu.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ilkkimbuldu.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=9656"}],"version-history":[{"count":1,"href":"https:\/\/www.ilkkimbuldu.com\/index.php?rest_route=\/wp\/v2\/posts\/9656\/revisions"}],"predecessor-version":[{"id":9658,"href":"https:\/\/www.ilkkimbuldu.com\/index.php?rest_route=\/wp\/v2\/posts\/9656\/revisions\/9658"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.ilkkimbuldu.com\/index.php?rest_route=\/wp\/v2\/media\/9657"}],"wp:attachment":[{"href":"https:\/\/www.ilkkimbuldu.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=9656"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ilkkimbuldu.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=9656"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ilkkimbuldu.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=9656"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}