{"id":103,"date":"2021-05-01T01:35:22","date_gmt":"2021-04-30T23:35:22","guid":{"rendered":"https:\/\/festivalznanosti.uniri.hr\/?p=103"},"modified":"2021-05-01T01:35:22","modified_gmt":"2021-04-30T23:35:22","slug":"znanost-na-korzu-8","status":"publish","type":"post","link":"https:\/\/festivalznanosti.uniri.hr\/2021\/znanost-na-korzu-8\/","title":{"rendered":"Znanost na Korzu"},"content":{"rendered":"
\n

Matemati\u010dki \u010dvorovi <\/h2>\n\n\n\n

Priznaj, sigurno nikada nisi pomislio\/pomislila da ti matematika mo\u017ee pomo\u0107i zapetljati ili otpetljati neki \u010dvor! Do\u0111i na Korzo i poku\u0161aj se otpetljati!\u00a0<\/p>\n\n\n\n

Tajne \u0161ifriranja <\/h2>\n\n\n\n

Jesi li se ikada pitao\/pitala kako je Cezar skrivao tajne od svojih neprijatelja? Jesi li ikada \u010duo\/\u010dula za Enigmu? Zna\u0161 li kako je radila? Zna\u0161 li tko ju je \u201eprobio\u201c? <\/p>\n\n\n\n

\u0160ifriranje je maskiranje ili pretvaranje izvornog teksta u \u0161ifrirani tekst po odre\u0111enom klju\u010du. Otkada postoji civilizacija postoji i potreba za \u0161ifriranjem. U ovoj \u0107emo aktivnosti prikazati kratak vremeplov \u0161ifriranja.  <\/p>\n\n\n\n

Pridru\u017ei nam se i oku\u0161aj se u \u0161ifriranju! <\/p>\n\n\n\n

(Ne)vidljiva svjetlost<\/h2>\n\n\n\n

doc. dr. sc. Ivana Poljan\u010di\u0107 Beljan, Odjel za fiziku, UNIRI  <\/p>\n\n\n\n

Sara Sabljak, studentica Preddiplomskog studija Fizika, Odjel za fiziku, UNIRI<\/p>\n\n\n\n

Jakov Mozeti\u0107, student Preddiplomskog studija Fizika, Odjel za fiziku, UNIRI<\/p>\n\n\n\n

Za\u0161to vidimo predmete? Mo\u017ee li svjetlost zaobi\u0107i prepreku? \u0160to je sjena? Za\u0161to su na vozilima hitne pomo\u0107i slova napisana naopako \u2013 zdesna nalijevo? Za\u0161to \u0161tap uronjen u vodu izgleda \u201eslomljen\u201c? Kakva se zrcala nalaze u retrovizorima automobila i zrcalima na raskri\u017ejima, a kakva rabe kozmeti\u010dari i stomatolozi?<\/p>\n\n\n\n

Odgovorit \u0107emo na ova i jo\u0161 mnoga pitanja izvode\u0107i pokuse i diskutiraju\u0107i o tome kako se svjetlost \u0161iri, kako se odbija od ravnoga i sfernih zrcala, \u0161to se doga\u0111a sa svjetlo\u0161\u0107u na prijelazu izme\u0111u dvaju prozirnih sredstava razli\u010ditih opti\u010dkih gusto\u0107a (npr. pri prijelazu iz vode u zrak), \u010dime \u0107emo obuhvatiti nekoliko zakona geometrijske optike: zakon o pravocrtnom \u0161irenju svjetlosti, zakon odbijanja svjetlosti i zakon loma svjetlosti.<\/p>\n\n\n\n

\u017divotopis<\/strong><\/h5>\n\n\n\n

Ivana Poljan\u010di\u0107 Beljan<\/strong> zavr\u0161ila je studij matematike i fizike na Filozofskom fakultetu u Rijeci. Doktorirala je 2018. na Fakultetu prirodnih znanosti Karl-Franzens Sveu\u010dili\u0161ta u Grazu (Austrija) s temom Properties of the solar velocity field indicated by motions of sunspot groups and coronal bright points<\/em>. Od 2009. zaposlena je na Odjelu za fiziku Sveu\u010dili\u0161ta u Rijeci, trenutno kao docentica. Znanstvena istra\u017eivanja vezana uz fiziku Sunca (diferencijalnu rotaciju Sunca i aktivnost Sunca) provodi u suradnji s Opservatorijem Hvar Geodetskoga fakulteta Sveu\u010dili\u0161ta u Zagrebu. Povremeno sura\u0111uje s dvije inozemne institucije na temu fotometrije mladih zvijezda. Aktivna je u popularizaciji znanosti odr\u017eavanjem predavanja i radionica te sudjelovanjem u organizaciji znanstveno-popularnih doga\u0111anja, kao \u0161to su \u0161kole fizike, Festival znanosti, Otvoreni dan Sveu\u010dili\u0161nih odjela itd.<\/p>\n\n\n\n

 <\/h2>\n<\/div>","protected":false},"excerpt":{"rendered":"

Matemati\u010dki \u010dvorovi –
\nTajne \u0161ifriranja –
\n(Ne)vidljiva svjetlost <\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"_themeisle_gutenberg_block_has_review":false,"footnotes":""},"categories":[9],"tags":[29,36],"yoast_head":"\nZnanost na Korzu - Festival Znanosti, Rijeka 2021<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/festivalznanosti.uniri.hr\/2021\/znanost-na-korzu-8\/\" \/>\n<meta property=\"og:locale\" content=\"hr_HR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Znanost na Korzu - Festival Znanosti, Rijeka 2021\" \/>\n<meta property=\"og:description\" content=\"Matemati\u010dki \u010dvorovi - 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