{"id":6443,"date":"2022-05-09T22:17:36","date_gmt":"2022-05-09T22:17:36","guid":{"rendered":"https:\/\/myeducationstation.net\/?p=6443"},"modified":"2022-06-12T19:31:00","modified_gmt":"2022-06-12T19:31:00","slug":"defining-light","status":"publish","type":"post","link":"https:\/\/myeducationstation.net\/sv\/definierande-ljus\/","title":{"rendered":"Definiera ljus"},"content":{"rendered":"
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Grunderna <\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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L\u00e5t det bli ljus!<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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Lektion 1: Vad \u00e4r ljus?<\/h2><\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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  • \n\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t<\/i>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\tDefiniera ljus<\/span>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t
  • \n\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t<\/i>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\tLjusets k\u00e4lla<\/span>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t
  • \n\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t<\/i>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\tLjusets anatomi<\/span>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t<\/ul>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t
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    I den h\u00e4r lektionen kommer du att l\u00e4ra dig vad ljus \u00e4r, var det kommer ifr\u00e5n och varf\u00f6r det blir ett spektrum n\u00e4r det uts\u00e4tts f\u00f6r ett prisma.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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    Definiera ljus<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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    Du vet det n\u00e4r du ser det, eller n\u00e4r du inte g\u00f6r det. Men be vilka tv\u00e5 personer som helst att definiera ljus, och om de inte \u00e4r skolade i fysik, kommer du f\u00f6rmodligen att f\u00e5 n\u00e5gra riktigt grundl\u00e4ggande svar, som i "Det \u00e4r den d\u00e4r saken som kommer fr\u00e5n solen och g\u00f6r allt, du vet ... inte m\u00f6rkt". Men som allt i naturen har ljus en komposition. Den har en struktur, en anatomi som kan brytas ner i delar. Och det spelar roll f\u00f6r utan ljus skulle vi inte ha n\u00e5got s\u00e4tt att uppfatta f\u00e4rg.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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    Ljusets k\u00e4lla<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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    Ljus kommer inte bara fr\u00e5n ingenstans. Allt ljus har en k\u00e4lla. Vissa ljusk\u00e4llor \u00e4r artificiella, som lampor och spotlights. Men den st\u00f6rsta naturliga ljusk\u00e4llan som v\u00e5r art k\u00e4nner till \u00e4r "Sol" ... det tekniska namnet f\u00f6r v\u00e5r sol. Vi f\u00e5r huvuddelen av v\u00e5rt ljus fr\u00e5n solen. Vi kallar det naturliga ljuset "omgivande" ljus. Omgivande ljus \u00e4r ljuset som \u00e4r synligt n\u00e4r alla artificiella ljusk\u00e4llor \u00e4r avst\u00e4ngda.<\/span><\/p>

    De flesta av oss l\u00e4rde oss i skolan att l\u00e4tta resor f\u00e4rdas v\u00e4ldigt snabbt med 186 000 miles per sekund. Men exakt HUR reser det? Ljus "str\u00e5lar ut" och f\u00e4rdas bort fr\u00e5n sin k\u00e4lla genom rymden. Ljus f\u00e4rdas i form av str\u00e5lar som vi kallar "str\u00e5lar". Den b\u00f6jer sig inte eller v\u00e4nder p\u00e5 h\u00f6rn. Ljus f\u00e4rdas i en rak linje. Men om vi kunde ta en r\u00f6ntgen av ljus, hur skulle det se ut? Tja, det ser ut som ett spektrum.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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    Ljusets anatomi<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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    Vi anv\u00e4nder ett prisma f\u00f6r att fungera som v\u00e5r r\u00f6ntgen. Innan vi kom med den enheten var det enda s\u00e4ttet vi ens visste att det fanns ett spektrum p\u00e5 f\u00f6r att naturen f\u00f6rs\u00e5g oss med de atmosf\u00e4riska f\u00f6rh\u00e5llanden som kr\u00e4vdes f\u00f6r att se en regnb\u00e5ge. Prismat gav oss v\u00e5r f\u00f6rsta kontrollerade blick p\u00e5 ljusets anatomi. Ljus kan se vitt ut med blotta \u00f6gat, men prismat visar oss hur ljus verkligen ser ut...p\u00e5 insidan. Vi kallar det arrangemanget av f\u00e4rg ett spektrum.<\/span><\/p>

    Denna spektrala syn p\u00e5 ljus ber\u00e4ttar alla m\u00f6jliga saker om dess anatomi. Vi kallar denna regnb\u00e5ge f\u00f6r det "synliga" spektrumet ... den del av spektrumet som faktiskt kan uppfattas av det m\u00e4nskliga \u00f6gat. Prismat visar oss det synliga spektrumet n\u00e4r vi riktar det mot solen och l\u00e5ter naturligt ljus lysa igenom det. Det \u00e4r inte hela spektrumet. Det "osynliga" spektrumet inkluderar ultraviolett och infrar\u00f6tt ljus, som det blotta \u00f6gat inte kan uppfatta men det finns mycket definitivt d\u00e4r. Det synliga spektrumet visar oss inte heller alla f\u00e4rger som det m\u00e4nskliga \u00f6gat kan uppfatta. Det beror p\u00e5 att vissa f\u00e4rger skapas genom att blanda. Vi kommer att prata mer om detta n\u00e4r vi kommer in p\u00e5 \u00e4mnet prim\u00e4ra, sekund\u00e4ra och terti\u00e4ra f\u00e4rger.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"

    Vi k\u00e4nner alla ljus n\u00e4r vi ser det. Men s\u00e4llan t\u00e4nker vi p\u00e5 hur det \u00e4r gjort, hur det r\u00f6r sig och hur det g\u00f6r f\u00e4rg m\u00f6jligt. <\/p>","protected":false},"author":1,"featured_media":6326,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_bbp_topic_count":0,"_bbp_reply_count":0,"_bbp_total_topic_count":0,"_bbp_total_reply_count":0,"_bbp_voice_count":0,"_bbp_anonymous_reply_count":0,"_bbp_topic_count_hidden":0,"_bbp_reply_count_hidden":0,"_bbp_forum_subforum_count":0,"footnotes":""},"categories":[136],"tags":[173],"class_list":["post-6443","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tutorial","tag-light"],"acf":[],"_links":{"self":[{"href":"https:\/\/myeducationstation.net\/sv\/wp-json\/wp\/v2\/posts\/6443","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/myeducationstation.net\/sv\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/myeducationstation.net\/sv\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/myeducationstation.net\/sv\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/myeducationstation.net\/sv\/wp-json\/wp\/v2\/comments?post=6443"}],"version-history":[{"count":43,"href":"https:\/\/myeducationstation.net\/sv\/wp-json\/wp\/v2\/posts\/6443\/revisions"}],"predecessor-version":[{"id":6741,"href":"https:\/\/myeducationstation.net\/sv\/wp-json\/wp\/v2\/posts\/6443\/revisions\/6741"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/myeducationstation.net\/sv\/wp-json\/wp\/v2\/media\/6326"}],"wp:attachment":[{"href":"https:\/\/myeducationstation.net\/sv\/wp-json\/wp\/v2\/media?parent=6443"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/myeducationstation.net\/sv\/wp-json\/wp\/v2\/categories?post=6443"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/myeducationstation.net\/sv\/wp-json\/wp\/v2\/tags?post=6443"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}