G\u00f6kteki bir jet u\u00e7a\u011f\u0131n\u0131n g\u00fcr\u00fclt\u00fcs\u00fcn\u00fc i\u015fitip, elimizde olmadan sesin geldi\u011fi y\u00f6ne do\u011fru bakt\u0131\u011f\u0131m\u0131z olmu\u015ftur. U\u00e7a\u011f\u0131 sesin geldi\u011fi noktadan \u00e7ok daha ileride g\u00f6rm\u00fc\u015f\u00fczd\u00fcr. U\u00e7a\u011f\u0131n ger\u00e7ek yerini kestirirken kulaklar\u0131m\u0131zdan \u00e7ok g\u00f6zlerimizi inan\u0131r\u0131z. Ni\u00e7in g\u00f6zlerimize inand\u0131k? O kadar uzaktan sesin bize ula\u015fmas\u0131 i\u00e7in epeyce zaman ge\u00e7ece\u011fini, ayr\u0131ca \u0131\u015f\u0131\u011f\u0131n sesten \u00e7ok h\u0131zl\u0131 yay\u0131ld\u0131\u011f\u0131n\u0131 biliyoruz.<\/p>\n
U\u00e7a\u011f\u0131n, g\u00f6rd\u00fc\u011f\u00fcm\u00fcz noktadan daha geride olabilece\u011fini d\u00fc\u015f\u00fcnmedik, \u00e7\u00fcnk\u00fc \u0131\u015f\u0131\u011f\u0131n ger\u00e7ekten \u00e7ok h\u0131zl\u0131 yay\u0131ld\u0131\u011f\u0131na inan\u0131r\u0131z. Galileo \u0131\u015f\u0131\u011f\u0131n h\u0131z\u0131n\u0131 \u00f6l\u00e7mek i\u00e7in sesin h\u0131z\u0131n\u0131 \u00f6l\u00e7mekte kulland\u0131\u011f\u0131na benzer bir y\u00f6ntem \u00f6nermi\u015fti. Bu y\u00f6ntemde; iki adam, \u00f6l\u00e7\u00fclm\u00fc\u015f bir uzakl\u0131\u011f\u0131n birer ucunda, ellerinde \u00f6rt\u00fcl\u00fc birer fenerle dururlar. Birinci adam fenerinin \u00f6rt\u00fcs\u00fcn\u00fc kald\u0131r\u0131rken bir kronometreyi i\u015fletir, ikinci adam birincinin fenerinden gelen \u0131\u015f\u0131\u011f\u0131 g\u00f6rd\u00fc\u011f\u00fc anda kendi fenerini a\u00e7ar. Birinci adam bu sefer ikincinin fenerinden gelen \u0131\u015f\u0131\u011f\u0131 g\u00f6r\u00fcr g\u00f6rmez kronometreyi durdurur. Galileo bu metotla \u0131\u015f\u0131\u011f\u0131n birinci adamdan ikincisine gidip gelmesi i\u00e7in ge\u00e7en zaman\u0131 \u00f6l\u00e7meyi ummu\u015ftu. I\u015f\u0131k pek h\u0131zl\u0131 yay\u0131ld\u0131\u011f\u0131n\u0131 i\u00e7in bu metotla \u0131\u015f\u0131k h\u0131z\u0131 \u00f6l\u00e7\u00fclemedi. Fakat, bu deney b\u00fcsb\u00fct\u00fcn ba\u015far\u0131s\u0131z say\u0131lmazd\u0131. Bu deney \u0131\u015f\u0131k h\u0131z\u0131n\u0131n k\u0131sa uzakl\u0131klarda, o zaman\u0131n kaba kronometreleriyle \u00f6l\u00e7\u00fclemeyecek derecede b\u00fcy\u00fck oldu\u011funu a\u00e7\u0131k\u00e7a g\u00f6sterir.<\/p>\n
I\u015f\u0131k h\u0131z\u0131n\u0131n sonlu oldu\u011fu hakk\u0131ndaki ilk kan\u0131t, 1676 y\u0131l\u0131nda Olaf Roemer taraf\u0131ndan, J\u00fcpiter gezegeninin uydular\u0131n\u0131n hareketinin g\u00f6zlenmesi sonucunda elde edildi. Bu uydular her d\u00f6n\u00fc\u015fte bir defa J\u00fcpiterin g\u00f6lgesinde kaybolup yine g\u00f6r\u00fcn\u00fcr. Uydulardan herhangi birinin iki ard\u0131\u015f\u0131k tutulmas\u0131 aras\u0131ndaki zaman onun bir d\u00f6nme s\u00fcresidir. Bu d\u00f6nme s\u00fcrelerinin sabit olmad\u0131\u011f\u0131 g\u00f6zlenmi\u015fti. Periyotlar (uydular\u0131n d\u00f6nme s\u00fcreleri), Yerk\u00fcre G\u00fcne\u015f \u00e7evresindeki y\u00f6r\u00fcngesinde J\u00fcpiterden uzakla\u015f\u0131rken b\u00fcy\u00fck; Yer J\u00fcpitere yakla\u015f\u0131rken ise biraz k\u00fc\u00e7\u00fck g\u00f6r\u00fcn\u00fcyordu. Remer \u015f\u00f6yle d\u00fc\u015f\u00fcnd\u00fc: Yerk\u00fcre j\u00fcpiterin uydular\u0131n\u0131n hareketlerini etkilemez; fakat Yer J\u00fcpiterden uzakla\u015f\u0131rken uydunun ard\u0131\u015f\u0131k iki tutulmas\u0131ndan kurtuldu\u011fu anlarda Yerk\u00fcreye gelen \u0131\u015f\u0131k. Yerk\u00fcreye ula\u015f\u0131ncaya kadar daha fazla yol al\u0131r. Fazladan al\u0131nacak yolun yine fazladan zaman gerektirmesi, \u0131\u015f\u0131\u011f\u0131n bir anda yay\u0131lmad\u0131\u011f\u0131n\u0131, \u0131\u015f\u0131k h\u0131z\u0131n\u0131n sonlu oldu\u011funu g\u00f6sterir.Bu, Roemer\u2019in b\u00fcy\u00fck katk\u0131s\u0131 idi. Bununla beraber o zaman, \u0131\u015f\u0131k h\u0131z\u0131n\u0131n say\u0131sal de\u011feri iki nedenden dolay\u0131 kesinlikle hesaplanamad\u0131. Birinci neden, Roemer \u0131\u015f\u0131\u011f\u0131n Yerk\u00fcrenin y\u00f6r\u00fcngesini ge\u00e7me zaman\u0131n\u0131 hatal\u0131 \u00f6l\u00e7\u00fclm\u00fc\u015ft\u00fc, ikinci neden de Yerk\u00fcrenin y\u00f6r\u00fcngesinin \u00e7ap\u0131 kesinlikle bilinmiyordu.<\/p>\n","protected":false},"excerpt":{"rendered":"
G\u00f6kteki bir jet u\u00e7a\u011f\u0131n\u0131n g\u00fcr\u00fclt\u00fcs\u00fcn\u00fc i\u015fitip, elimizde olmadan sesin geldi\u011fi y\u00f6ne do\u011fru bakt\u0131\u011f\u0131m\u0131z olmu\u015ftur. U\u00e7a\u011f\u0131 sesin geldi\u011fi noktadan \u00e7ok daha ileride g\u00f6rm\u00fc\u015f\u00fczd\u00fcr. U\u00e7a\u011f\u0131n ger\u00e7ek yerini kestirirken kulaklar\u0131m\u0131zdan \u00e7ok g\u00f6zlerimizi inan\u0131r\u0131z. Ni\u00e7in g\u00f6zlerimize inand\u0131k? O kadar uzaktan sesin bize ula\u015fmas\u0131 i\u00e7in epeyce zaman ge\u00e7ece\u011fini, ayr\u0131ca \u0131\u015f\u0131\u011f\u0131n sesten \u00e7ok h\u0131zl\u0131 yay\u0131ld\u0131\u011f\u0131n\u0131 biliyoruz. U\u00e7a\u011f\u0131n, g\u00f6rd\u00fc\u011f\u00fcm\u00fcz noktadan daha geride …<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1407,1403],"tags":[3511,7110,6861,2830,3634],"class_list":["post-2957","post","type-post","status-publish","format-standard","hentry","category-fen-ve-teknoloji-odevleri","category-odevler","tag-galileo","tag-isigin-hizi","tag-isik-hizi","tag-jupiter","tag-yerkure"],"_links":{"self":[{"href":"https:\/\/www.islamidavet.com\/kutuphane\/wp-json\/wp\/v2\/posts\/2957","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.islamidavet.com\/kutuphane\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.islamidavet.com\/kutuphane\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.islamidavet.com\/kutuphane\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.islamidavet.com\/kutuphane\/wp-json\/wp\/v2\/comments?post=2957"}],"version-history":[{"count":0,"href":"https:\/\/www.islamidavet.com\/kutuphane\/wp-json\/wp\/v2\/posts\/2957\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.islamidavet.com\/kutuphane\/wp-json\/wp\/v2\/media?parent=2957"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.islamidavet.com\/kutuphane\/wp-json\/wp\/v2\/categories?post=2957"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.islamidavet.com\/kutuphane\/wp-json\/wp\/v2\/tags?post=2957"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}