{"id":7335,"date":"2024-11-13T09:57:37","date_gmt":"2024-11-13T09:57:37","guid":{"rendered":"http:\/\/osnovnaskolakrk.hr\/krk\/?p=7335"},"modified":"2024-11-13T09:57:37","modified_gmt":"2024-11-13T09:57:37","slug":"kriptografija-stem-show-kresimira-canica","status":"publish","type":"post","link":"http:\/\/osnovnaskolakrk.hr\/krk\/kriptografija-stem-show-kresimira-canica\/","title":{"rendered":"Kriptografija &#8211; STEM show Kre\u0161imira \u010cani\u0107a"},"content":{"rendered":"<p>Tre\u0107u godinu zaredom, u pravilu po\u010detkom studenog, Mati\u010dnu \u0161kolu Krk i Podru\u010dnu \u0161kolu Ba\u0161ka posje\u0107uje znanstvenik fizi\u010dar s Ru\u0111era Bo\u0161kovi\u0107a, Kre\u0161imir \u010cani\u0107. Podsjetimo se, radi se o EU projektu popularizacije prirodnih i tehnolo\u0161kih znanosti na atraktivan na\u010din koji je razumljiv mla\u0111im u\u010denicima. Dolazak u na\u0161e \u0161kole sponzorira \u0160kolska knjiga.<\/p>\n<p>Ove godine tema radionice bila je kriptografija. Saznali smo mnogo vrlo zanimljivih \u010dinjenica, u praksi isprobali neke vje\u0161tine \u0161ifriranja poruka te se upoznali s drevnim i suvremenih alatima za tajno preno\u0161enje informacija.<!--more--><\/p>\n<p>Kriptografska umije\u0107a, gotovo bi mogli re\u0107i kriptografska znanost, pro\u017eima \u010ditavu ljudsku pisanu povijest. Od najranijih dr\u017eava, starog Egipta i Gr\u010dke, postojale su tehnike za tajno preno\u0161enje delikatnih politi\u010dkih i vojnih poruka. Uz to je vezana i povijest tajnih slu\u017ebi, genijalnih pojedinaca koji su izmi\u0161ljali, u po\u010detku jednostavne a kasnije vrlo sofisticirane, ure\u0111aje za kriptiranje tj. \u0161ifriranje. To je tema koja se obra\u0111uje uglavnom u trilerima o Jamesu Bondu ili dokumentarcima o svjetskim ratovima. Me\u0111utim, u svakom razdoblju ljudske povijesti doga\u0111alo se ne\u0161to uzbudljivo na ovom podru\u010dju. Razvoj kriptografije tijesno je povezan s razvojem tehnologije, istra\u017eivanja koja su pokrenuta s ciljem stvaranja ili otkrivanja tajnih \u0161ifri potaknula su, izme\u0111u ostalog, u najnovije vrijeme, razvoj ra\u010dunalne znanosti.<\/p>\n<p>Ako \u017eelite pogledati ovu pri\u010du mo\u017eete je potra\u017eiti na YouTube-u, pod VUK &#8211; \u0160ifrarnik; VUK &#8211; Enigma i VUK &#8211; Jeffersonova \u0161ifra<\/p>\n<p>Na kraju je Kre\u0161imir donirao \u0160koli lego mehani\u010dku slagalicu kozmi\u010dkog sustava Zemlja-Sunce-Mjesec koja prikazuje me\u0111usobni dinami\u010dki odnos ovih nebeskih tijela.<\/p>\n<p>Zahvaljujemo \u0160kolskoj knjizi na sponzorstvu i nestrpljivo o\u010dekujemo Kre\u0161imirovu sljede\u0107u radionicu, \u010dija tema je&#8230;.naravno&#8230;tajna!<\/p>\n\n\t\t<style type=\"text\/css\">\n\t\t\t#gallery-1 {\n\t\t\t\tmargin: auto;\n\t\t\t}\n\t\t\t#gallery-1 .gallery-item {\n\t\t\t\tfloat: left;\n\t\t\t\tmargin-top: 10px;\n\t\t\t\ttext-align: center;\n\t\t\t\twidth: 33%;\n\t\t\t}\n\t\t\t#gallery-1 img {\n\t\t\t\tborder: 2px solid #cfcfcf;\n\t\t\t}\n\t\t\t#gallery-1 .gallery-caption {\n\t\t\t\tmargin-left: 0;\n\t\t\t}\n\t\t\t\/* see gallery_shortcode() in wp-includes\/media.php *\/\n\t\t<\/style>\n\t\t<div id='gallery-1' class='gallery galleryid-7335 gallery-columns-3 gallery-size-thumbnail'><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon landscape'>\n\t\t\t\t<a href='http:\/\/osnovnaskolakrk.hr\/krk\/wp-content\/uploads\/k1.jpeg' title=\"\" data-rl_title=\"\" class=\"rl-gallery-link\" data-rl_caption=\"\" data-rel=\"lightbox-gallery-1\"><img width=\"150\" height=\"150\" src=\"http:\/\/osnovnaskolakrk.hr\/krk\/wp-content\/uploads\/k1-150x150.jpeg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" loading=\"lazy\" srcset=\"http:\/\/osnovnaskolakrk.hr\/krk\/wp-content\/uploads\/k1-150x150.jpeg 150w, http:\/\/osnovnaskolakrk.hr\/krk\/wp-content\/uploads\/k1-300x300.jpeg 300w, http:\/\/osnovnaskolakrk.hr\/krk\/wp-content\/uploads\/k1-1024x1024.jpeg 1024w, http:\/\/osnovnaskolakrk.hr\/krk\/wp-content\/uploads\/k1-768x768.jpeg 768w, http:\/\/osnovnaskolakrk.hr\/krk\/wp-content\/uploads\/k1-624x624.jpeg 624w, http:\/\/osnovnaskolakrk.hr\/krk\/wp-content\/uploads\/k1.jpeg 1080w\" sizes=\"(max-width: 150px) 100vw, 150px\" \/><\/a>\n\t\t\t<\/dt><\/dl><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon portrait'>\n\t\t\t\t<a href='http:\/\/osnovnaskolakrk.hr\/krk\/wp-content\/uploads\/s4-4-scaled.jpg' title=\"\" data-rl_title=\"\" class=\"rl-gallery-link\" data-rl_caption=\"\" data-rel=\"lightbox-gallery-1\"><img width=\"150\" height=\"150\" src=\"http:\/\/osnovnaskolakrk.hr\/krk\/wp-content\/uploads\/s4-4-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" loading=\"lazy\" \/><\/a>\n\t\t\t<\/dt><\/dl><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon portrait'>\n\t\t\t\t<a href='http:\/\/osnovnaskolakrk.hr\/krk\/wp-content\/uploads\/s3-4-scaled.jpg' title=\"\" data-rl_title=\"\" class=\"rl-gallery-link\" data-rl_caption=\"\" data-rel=\"lightbox-gallery-1\"><img width=\"150\" height=\"150\" src=\"http:\/\/osnovnaskolakrk.hr\/krk\/wp-content\/uploads\/s3-4-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" loading=\"lazy\" \/><\/a>\n\t\t\t<\/dt><\/dl><br style=\"clear: both\" \/><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon portrait'>\n\t\t\t\t<a href='http:\/\/osnovnaskolakrk.hr\/krk\/wp-content\/uploads\/s1-6-scaled.jpg' title=\"\" data-rl_title=\"\" class=\"rl-gallery-link\" data-rl_caption=\"\" data-rel=\"lightbox-gallery-1\"><img width=\"150\" height=\"150\" src=\"http:\/\/osnovnaskolakrk.hr\/krk\/wp-content\/uploads\/s1-6-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" loading=\"lazy\" \/><\/a>\n\t\t\t<\/dt><\/dl><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon portrait'>\n\t\t\t\t<a href='http:\/\/osnovnaskolakrk.hr\/krk\/wp-content\/uploads\/s2-8-scaled.jpg' title=\"\" data-rl_title=\"\" class=\"rl-gallery-link\" data-rl_caption=\"\" data-rel=\"lightbox-gallery-1\"><img width=\"150\" height=\"150\" src=\"http:\/\/osnovnaskolakrk.hr\/krk\/wp-content\/uploads\/s2-8-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" loading=\"lazy\" \/><\/a>\n\t\t\t<\/dt><\/dl>\n\t\t\t<br style='clear: both' \/>\n\t\t<\/div>\n\n","protected":false},"excerpt":{"rendered":"<p>Tre\u0107u godinu zaredom, u pravilu po\u010detkom studenog, Mati\u010dnu \u0161kolu Krk i Podru\u010dnu \u0161kolu Ba\u0161ka posje\u0107uje znanstvenik fizi\u010dar s Ru\u0111era Bo\u0161kovi\u0107a, Kre\u0161imir \u010cani\u0107. Podsjetimo se, radi se o EU projektu popularizacije prirodnih i tehnolo\u0161kih znanosti na atraktivan na\u010din koji je razumljiv mla\u0111im u\u010denicima. Dolazak u na\u0161e \u0161kole sponzorira \u0160kolska knjiga. Ove godine tema radionice bila je [&hellip;]<\/p>\n","protected":false},"author":18,"featured_media":7338,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[1],"tags":[],"_links":{"self":[{"href":"http:\/\/osnovnaskolakrk.hr\/krk\/wp-json\/wp\/v2\/posts\/7335"}],"collection":[{"href":"http:\/\/osnovnaskolakrk.hr\/krk\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/osnovnaskolakrk.hr\/krk\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/osnovnaskolakrk.hr\/krk\/wp-json\/wp\/v2\/users\/18"}],"replies":[{"embeddable":true,"href":"http:\/\/osnovnaskolakrk.hr\/krk\/wp-json\/wp\/v2\/comments?post=7335"}],"version-history":[{"count":1,"href":"http:\/\/osnovnaskolakrk.hr\/krk\/wp-json\/wp\/v2\/posts\/7335\/revisions"}],"predecessor-version":[{"id":7343,"href":"http:\/\/osnovnaskolakrk.hr\/krk\/wp-json\/wp\/v2\/posts\/7335\/revisions\/7343"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/osnovnaskolakrk.hr\/krk\/wp-json\/wp\/v2\/media\/7338"}],"wp:attachment":[{"href":"http:\/\/osnovnaskolakrk.hr\/krk\/wp-json\/wp\/v2\/media?parent=7335"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/osnovnaskolakrk.hr\/krk\/wp-json\/wp\/v2\/categories?post=7335"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/osnovnaskolakrk.hr\/krk\/wp-json\/wp\/v2\/tags?post=7335"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}