WIT

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Pet tjedana u balonu

Pet tjedana u balonu ili Pet nedjelja u balonu pustolovni je roman Julesa Vernea objavljen 1863. godine. Ovo je njegov prvi roman u kojem je usavršio sastojke za svoja kasnija djela, vješto miješajući radnju pune pustolovina s nevjerojatnim obrtima koji drže pažnju čitatelja preko tehničkih, zemljopisnih, i povijesnih opisa. U knjizi je dat kratak pogled na istraživanja Afrike, koja u to vrijeme Europljanima nije bila u potpunosti poznata. Tadašnja čitalačka publika veoma je bila zainteresirana za priče o istraživanjima Afrike, stoga je ovaj roman odmah postao hit. Roman je Julesu Verneu omogućio financijsku neovisnost i dugotrajni ugovor s izdavačkom kućom Pierre-Julesa Hetzela, koja je tijekom naredna četiri desetljeća objavila šezdesetak njegovih knjiga.

Andrew Sledd

Andrew Warren Sledd was an American theologian, university professor and university president. A native of Virginia, he was the son of a prominent Methodist minister, and was himself ordained as a minister after earning his bachelor's and master's degrees. He later earned a second master's degree and his doctorate. After teaching for several years, Sledd was chosen to be the last president of the University of Florida at Lake City, from 1904 to 1905, and the first president of the modern University of Florida, from 1905 to 1909. He was also president of Southern University from 1910 to 1914, and later became a professor and an influential biblical scholar at Emory University's Candler School of Theology from 1914 to 1939. Sledd first gained national recognition after he wrote a 1902 magazine article advocating better legal and social treatment of African-Americans. He is also prominently remembered for his role in founding the modern University of Florida, his scholarly analysis of biblical texts as literature, his call for an end to racial violence, and his influence on a generation of Methodist seminary students, scholars and ministers.

타마린드

타마린드는 콩과에 속하는 나무로, 열대 아프리카가 기원이다. 타마린드속은 하나의 종만 지니고 있는 단형이다.

ثنائي باعث للضوء

الثنائي الباعث للضوء ‏ هو مصدر ضوئي مصنوع من مواد أشباه الموصلات تبعث الضوء حينما يمر خلاله تيار كهربائي. يكثر استخدامه كما يكثر تسميته بـ LED أو الإضاءة الثبلية، "ثبل". يعتبر مصباح إل إي دي أوفر المصابيح الكهربائية من وجهة استهلاكه للكهرباء، فمثلا فإذا كانت قوة لمبة عادية من التي تعمل بفتيل من التنجستن قدرتها 25 واط فإن مصباحا إل إي دي يعوضها بقدرة 4 - 5 واط فقط، على الرغم من أن كل واحد منهما ينتج شدة إضاء تبلغ 190 لومن. تنتج مصابيح "إل إي دي" بقدرات بين 4 واط إلى 100 واط. بتاريخ 7 أكتوبر/تشرين الأول، تم منح جائزة نوبل في الفيزياء لمخترعي الصمام الثنائي الباعث للضوء، إيسامو اكاساكي وهيروشي أمانو وشوجي ناكامورا لـ"اختراع الصمام الثنائي الباعث للضوء الأزرق المتميز بكفائته والذي ادى إلى إمكانية توفير مصادر ساطعة وموفرة للطاقة للضوء الأبيض".