Alexander Fleming• Sir Alexander Fleming (6 August 1881• – 11 March 1955) was a Scottish • biologist and pharmacologist.• "When I woke up just after dawn on September 28, 1928,I certainly

didn't plan to revolutionize all medicine by discovering the world's first antibiotic, or bacteria killer," Fleming would write later, "But I guess that's exactly what I did.“

• Sir Alexander Fleming (6 august 1881-11 martie 1955)-biolog si farmacist.

• “Cand m-am trezit in zorii zilei de 28 sept.1928,nu visam ca voi revolutiona toata medicina prin descoperirea primului antibiotic din lume, sau ucigasul bacteriilor…Dar cred ca exact asta am facut”

Alexander Fleming

• Fleming's accidental discovery and isolation of penicillin in September 1928 marks the start of modern antibiotics.

• Descoperirea accidentala a lui Fleming si izolarea penicilinei in septembrie 1928 marcheaza debutul antibioticelor moderne .

• Aşadar, aportul lui Fleming la descoperirea penicilinei a fost foarte important, dar nu i se poate atribui meritul în totalitate. În schimb, cu siguranţă, el a descoperit singur în anul 1921 o altă substanţă, o enzimă naturală care distruge bacteriile - lizozim. În cazul lizozimului, descoperirea a venit în urma cercetărilor efectuate asupra propriilor mucozităţi. Această substanţă apare în secreţiile omului dar şi în afara organismului uman şi are proprietăţi antibacteriene.

IAN NICHOLAS STEWART• Ian Nicholas Stewart FRS born 24 September 1945 is a professor of mathematics at the

University of Warwick, England, and a widely known popular-science and science-fiction writer. He is the first recipient of the Christopher Zeeman Medal, awarded jointly by the LMS and the IMA for his work on promoting mathematics.

• Ian Nicholas Stewart is an English mathematician who has made considerable contributions to the field of catastrophe theory.

• He is more famous, however, as a popular writer and publicist of mathematics. • As one of the contributors to the Science of Discworld series, he was created an honorary Wizard of

Unseen University. • Contrary to popular belief, he is not in fact Scottish. • Nicolae Ian Stewart FRS născut 24 septembrie 1945 este profesor de matematică la Universitatea din

Warwick, Anglia, şi un cunoscut scriitor science-fiction El este primul care a primit Medalia Zeeman Christopher, acordata în comun de LMS şi IMA pentru munca sa de promovarea matematicii

• Nicolae Ian Stewart este un matematician englez care a contribuit în mod considerabil la domeniul teoriei catastrofei.

• El este mai faimos, cu toate acestea, ca un scriitor popular şi publicist de matematică. • Ca unul dintre contribuabilii la Stiinta din seria Discworld,pentru el a fost creat un titlu onorific de

Vrajitor al Universitatii Nevazute.

David Livingstone• Livingstone was a Scottish missionary and one of the greatest European explorers of Africa,

whose opening up the interior of the continent contributed to the 'Scramble for Africa'.• David Livingstone was born at Blantyre, south of Glasgow on 19 March 1813. At 10 he began

working in the local cotton mill, with school lessons in the evenings. In 1836, he began studying medicine and theology in Glasgow and decided to become a missionary doctor. In 1841, he was posted to the edge of the Kalahari Desert in southern Africa. In 1845, he married Mary Moffat, daughter of a fellow missionary.

• Livingstone became convinced of his mission to reach new peoples in the interior of Africa and introduce them to Christianity, as well as freeing them from slavery. It was this which inspired his explorations. In 1849 and 1851, he travelled across the Kalahari, on the second trip sighting the upper Zambezi River. In 1842, he began a four year expedition to find a route from the upper Zambezi to the coast. This filled huge gaps in western knowledge of central and southern Africa. In 1855, Livingstone discovered a spectacular waterfall which he named 'Victoria Falls'. He reached the mouth of the Zambezi on the Indian Ocean in May 1856, becoming the first European to cross the width of southern Africa.