1. Hans Karl August Simon Von Euler-Chelpin Winner Of The 1929 Nobel Prize In Chemi hans karl august simon von eulerchelpin. 1929 nobel Laureate in Chemistry fortheir investigations on the fermentation of sugar and fermentative enzymes. http://almaz.com/nobel/chemistry/1929b.html

H ANS K ARL A UGUST S IMON V ON E ULER -C HELPIN 1929 Nobel Laureate in Chemistry for their investigations on the fermentation of sugar and fermentative enzymes. Background Place of Birth: Augsburg, Germany Residence: Sweden Affiliation: Stockholm University Featured Internet Links Prize Co-recipient: Sir Arthur Harden Presentation Speech Biography His son and Nobel Laureate in Physiology, Ulf von Euler Search WWW Search The Nobel Prize Internet Archive Links added by Nobel Internet Archive visitors Back to The Nobel Prize Internet Archive Literature Peace Chemistry ... Medicine We always welcome your feedback and comments

2. Euler-Chelpin, Hans Von, hans karl august simon von eulerchelpin (b. Feb. 15, 1873, Augsburg, Ger.d. Nov.7, 1964, Stockholm, Swed.), Swedish biochemist who shared the 1929 nobel http://www.britannica.com/nobel/micro/198_45.html

Euler-Chelpin, Hans von, Euler-Chelpin Bavaria-Verlag in full HANS KARL AUGUST SIMON VON EULER-CHELPIN (b. Feb. 15, 1873, Augsburg, Ger.d. Nov. 7, 1964, Stockholm, Swed.), Swedish biochemist who shared the 1929 Nobel Prize for Chemistry with Sir Arthur Harden for work on enzymes in the fermentation of sugar. After graduating from the University of Berlin (1895), Euler-Chelpin worked with Walther Nernst and in 1897 became assistant to Svante Arrhenius at the Royal Institute of Technology in Stockholm. He joined the faculty at the University of Stockholm (1900), where he became professor of general and inorganic chemistry (1906) and director of the new biochemical institute (1929). Euler-Chelpin identified the various substrates acted upon by enzymes in the course of fermentation reactions, and he traced the role of phosphates in the fermentation of sugar. He particularly studied coenzymes, which act or "coact" with enzymes and are necessary for their action. In the case of zymase, an enzyme in yeast, he isolated its coenzyme, cozymase, and determined its chemical structure. He also helped determine the chemical structure of several vitamins, which form portions of coenzymes.

3. Encyclopædia Britannica - The Online Encyclopedia You Can Trust in full hans karl august simon von eulerchelpin Swedish biochemist who shared the1929 nobel Prize for Chemistry with Sir Arthur Harden for work on the role http://www.britannica.com/seo/h/hans-von-euler-chelpin/

Home Browse Store Subscribe Log In or Subscribe Now Log-in Password Remember me Forgot your password? Not a subscriber yet? Learn about the service Account Management Shopping NEW! Britannica 2003 Print Set Suite Price: USD $150 Plus 18 additional payments of $69.16 - 0% interest! NEW! Britannica 2002 Year in Review Price: USD $24.95 The entire year...the entire world...in words and pictures. NEW! Britannica 2003 Ultimate Reference Suite DVD Price: USD $69.95 Only $49.95 after mail-in rebate! Visit Britannica Store All Britannica.com Britannica Student Encyclopedia Britannica Concise Encyclopedia Websites Video and Media Dictionary Thesaurus Not sure of the spelling? Search Tips Suggested Searches: poetry Islam brain Collegiate Dictionary Collegiate Thesaurus Browse Britannica Delve into the rich content of using our selection of browse features. Browse Alphabetically A B C D ... Z Browse Britannica's World Atlas The World Africa Asia and Russia Australia and Oceania ... South America Browse Timelines Trace selected topics through history with illustrations and key dates.

4. Nobel Prize In Chemistry - Wikipedia http//www.nobel.se/chemistry/laureates/index.html. 1928 Adolf Otto Reinhold Windaus1929 Arthur Harden, hans karl august simon von eulerchelpin 1930 hans http://www.wikipedia.org/wiki/Nobel_Prize/Chemistry

Main Page Recent changes Edit this page Page history Special pages Set my user preferences My watchlist Recently updated pages Upload image files Image list Registered users Site statistics Random article Orphaned articles Orphaned images Popular articles Most wanted articles Short articles Long articles Newly created articles Interlanguage links All pages by title Blocked IP addresses Maintenance page External book sources Printable version Talk Log in Help Other languages: Dansk Italiano Nederlands Deutsch ... Polski Nobel Prize in Chemistry (Redirected from Nobel Prize/Chemistry Winners of the Nobel Prize in Chemistry , listed by year of award in ascending order. Jacobus Henricus van't Hoff Hermann Emil Fischer Svante August Arrhenius Sir William Ramsay ... Richard Adolf Zsigmondy The (Theodor) Svedberg Heinrich Otto Wieland Adolf Otto Reinhold Windaus Arthur Harden Hans Karl August Simon von Euler-Chelpin ... Robert Curl , Sir Harold Kroto Richard Smalley Paul D. Boyer John E. Walker ... Koichi Tanaka Source: http://www.nobel.se/chemistry/laureates/index.html Edit this page Discuss this page Page history ... Related changes Other languages: Dansk Italiano Nederlands Deutsch ... Recent changes It was last modified 18:30 Mar 13, 2003. All text is available under the terms of the

5. Prix Nobel De Chimie - Wikipedia Voir aussi Prix nobel. 1929 Arthur Harden, hans karl august simon von eulerchelpin;1930 hans Fischer; 1931 Carl Bosch, Friedrich Bergius; http://fr.wikipedia.org/wiki/Prix_Nobel_de_Chimie

Accueil Modifications récentes Modifier cette page Historique Pages spéciales Préférences Liste de suivi Modifications récentes Copier un fichier Liste des images Liste des participants Statistiques Une page au hasard Pages orphelines Images orphelines Les plus populaires Les plus demandées Articles courts Articles longs Nouvelles pages Toutes les pages Adresses IP bloquées Page de Maintenance Librairies en ligne Version imprimable Discuter Identification Aide Autres langues: English Dansk Español Italiano ... Polski Prix Nobel de chimie (Redirigé depuis Prix Nobel de Chimie Voir aussi Prix Nobel Jacobus Henricus van't Hoff Hermann Emil Fischer Svante August Arrhenius Sir William Ramsay Johann Friedrich Wilhelm Adolf von Baeyer Henri Moissan Eduard Buchner ... Wendell Meredith Stanley Sir Robert Robinson Arne Wilhelm Kaurin Tiselius William Francis Giauque Otto Paul Hermann Diels ... Vincent du Vigneaud Sir Cyril Norman Hinshelwood Nikolay Nikolaevich Semenov Lord Alexander R. Todd Frederick Sanger Jaroslav Heyrovsky Willard Frank Libby ... Robert Curl , Sir Harold Kroto Richard Smalley Paul D. Boyer

6. ALPHABETICAL LISTING OF NOBEL PRIZE LAUREATES IN CHEMISTRY ALPHABETICAL LISTING OF nobel PRIZE LAUREATES IN CHEMISTRY. Name, Year Awarded. Ernst,Richard R. 1991. eulerchelpin, hans karl august simon von, 1929. http://www.bioscience.org/urllists/nobelc.htm

FRONTIERS IN BIOSCIENCE; ALPHABETICAL LISTING OF NOBEL PRIZE LAUREATES IN CHEMISTRY, PHYSIOLOGY AND MEDICINE ALPHABETICAL LISTING OF NOBEL PRIZE LAUREATES IN CHEMISTRY Name Year Awarded Alder, Kurt Altman, Sidney Anfinsen, Christian B. Arrhenius, Svante August ... Zsigmondy, Richard Adolf ALPHABETICAL LISTING OF NOBEL PRIZE LAUREATES IN PHYSIOLOGY AND MEDICINE Name Year Awarded Adrian, Lord Edgar Douglas Arber, Werner Axelrod, Julius Baltimore, David ... Zinkernagel, Rolf M. Source: The Nobel Prize Internet Archive

7. Biographies: Winners Of The Nobel Prize In Chemistry of Science History of Chemistry Winners of the nobel Prize in Otto Paul Hermann;Eigen, Manfred; Ernst, Richard R. eulerchelpin, hans karl august simon von; http://www.infochembio.ethz.ch/links/en/history_chem_nobel_bio.html

Deutsch Links Libraries Publishers Database producers Database hosts ... Organisations Search this website: Website Index Subject Index Impressum Chemistry, Biology and related disciplines in the WWW Biographies: Winners of the Nobel Prize in Chemistry Home Links History of Science History of Chemistry ... Zsigmondy, Richard Adolf

8. Premi Nobel Per La Chimica von euler-chelpin hans karl august simon; Enrico;Fischer Ernst Otto; Fischer hans; Norman; Heisenberg Werner karl; von Helmholtz http://www.itchiavari.org/chimica/tabelle/biografie.html

Biografie di Chimici Alder Kurt Anfinsen Christian B Arrhenius Svante August Aston Francis William ... Home Page Istituto tecnico statale commerciale e per geometri di Chiavari (Genova - Italia)

9. International: Italiano: Scienze: Chimica: Chimici_e_Ricercatori: Euler-Chelpin, Translate this page e Ricercatori euler-chelpin, hans karl august simon von (0) Vedi anche InternationalItaliano Società Strutture Sociali Persone Biografie Premio nobel. http://open-site.org/International/Italiano/Scienze/Chimica/Chimici_e_Ricercator

Open Site The Open Encyclopedia Project Pagina Principale Aggiungi Contenuti Diventa Editore In tutta la Directory Solo in Chimici_e_Ricercatori/Euler-Chelpin,_Hans_Karl_August_Simon_von Top International Italiano Scienze ... Chimici e Ricercatori : Euler-Chelpin, Hans Karl August Simon von Vedi anche: International: Italiano: Societ : Strutture Sociali: Persone: Biografie: Premio Nobel Questa Categoria ha bisogno di un Editore - Richiedila Open Site Code 0.4.1 modifica

10. Fq - Prémios Nobel Da Química 1929 Arthur Harden, hans karl august simon von euler-chelpin; 1928 Adolf http://atelier.uarte.mct.pt/fq/quem/nobelqui.htm

Temas disponíveis Ácido-base Astronomia Átomo Dinâmica Electricidade Energia Estado gasoso Laboratório Orgânica Precipitação Reacções Soluções Substâncias Quem? Tabelas Outros links Índice Menu principal quem? Páginas neste tema Bibliografia Biografias Prémios Nobel da Física Prémios Nobel da Química Prémios Nobel da Química Galardoados com o Prémio Nobel da Química, atribuído pela Fundação Nobel , para distinguir trabalhos de grande importância na investigação Química: 2002 John B. Fenn, Koichi Tanaka, Kurt Wüthrich 2001 William S. Knowles, Ryoji Noyori, K. Barry Sharpless 2000 Alan J. Heeger, Alan G. MacDiarmid, Hideki Shirakawa 1999 Ahmed H. Zewail 1998 Walter Kohn, John A. Pople 1997 Paul D. Boyer, John E. Walker, Jens C. Skou 1996 Robert F. Curl Jr., Sir Harold W. Kroto, Richard E. Smalley 1995 Paul J. Crutzen, Mario J. Molina, F. Sherwood Rowland 1994 George A. Olah 1993 Kary B. Mullis, Michael Smith 1992 Rudolph A. Marcus

11. Nobel For Chemistry: All Laureates 1929 Arthur Harden, hans karl august simon von eulerchelpin 1928 Adolf Johann FriedrichWilhelm Adolf von Baeyer 1904 Ramsay 1903 Svante august Arrhenius 1902 http://www.popular-science.net/nobel/chem-list.html

NOBEL Read More on the Nobel Prize: Nobel Minds 2001 Awards John Nash Women Nobel Prize ... Prize Amounts MINI ALMANAC Calendar Moon phase Popular Science Highlights: IG Nobel 2002 The invention of :-) West Nile Virus Asteroid Impact? ... Book: Russell Read also: Nobel Prize Women in Science : Their Lives, Struggles, and Momentous Discoveries by Sharon Bertsch McGrayne THE NOBEL PRIZE FOR CHEMISTRY: ALL WINNERS 2001 William Knowles, K. Barry Sharpless, Ryoji Noyori 2000 Alan J. Heeger, Alan G. MacDiarmid, Hideki Shirakawa 1999 Ahmed H. Zewail 1998 Walter Kohn, John A. Pople 1997 Paul D. Boyer, John E. Walker, Jens C. Skou 1996 Robert F. Curl Jr., Sir Harold W. Kroto, Richard E. Smalley 1995 Paul J. Crutzen, Mario J. Molina, F. Sherwood Rowland 1994 George A. Olah 1993 Kary B. Mullis, Michael Smith 1992 Rudolph A. Marcus

12. So Biografias: Nobel Quimica Translate this page Lista dos Ganhadores dos Prêmio nobel de Química. 1929 Dois ganhadores Sir ARTHURHARDEN / hans karl august simon von euler-chelpin Por suas pesquisas em http://www.sobiografias.hpg.ig.com.br/RolNobQ2.html

Lista dos Ganhadores dos THEODOR SVEDBERG Por seu trabalho em sistemas dispersos. HEINRICH OTTO WIELAND ADOLF OTTO REINHOLD WINDAUS Dois ganhadores: Sir ARTHUR HARDEN HANS KARL AUGUST SIMON VON EULER-CHELPIN HANS FISCHER hematina. Dois ganhadores: CARL BOSCH FRIEDRICH BERGIUS IRVING LANGMUIR (Sem ganhadores) HAROLD CLAYTON UREY H Dois ganhadores: PETRUS (PETER) JOSEPHUS WILHELMUS DEBYE Dois ganhadores: Sir WALTER NORMAN HAWORTH PAUL KARRER HAWORTH : Por suas pesquisaas em carboidratos e vitamina C. KARRER RICHARD KUHN Dois ganhadores: ADOLF FRIEDRICH JOHANN BUTENANDT LEOPOLD RUZICKA BUTENANDT RUZICKA : Por seus trabalhos sobre polimetilenos e terpenos superiores. (Sem ganhador) GEORGE CHARLES [ ou Georg Karl von] DE HEVESY OTTO HAHN ... SUMNER Pela descoberta de que enzimas podem ser cristalizadas NORTHROP STANLEY Sir ROBERT ROBINSON ... WILLIAM FRANCIS GIAUQUE Dois ganhadores: OTTO PAUL HERMANN DIELS KURT ALDER dienos. Fonte principal: Museu Nobel

13. Premio Nobel De Química - Wikipedia Translate this page Ver enlace http//www.nobel.se/chemistry/laureates/index.html. 1930 hans Fischer1929 Arthur Harden, hans karl august simon von euler-chelpin 1928 Adolf Otto http://es.wikipedia.org/wiki/Premio_Nobel/Química

Portada Cambios Recientes Edita esta página Historia Páginas especiales Preferencias de usuario Mi lista de seguimiento Cambio Recientes Subir una imagen Lista de imágenes Usuarios registrados Estadísticas del sitio Artículo aleatorio Artículos huérfanos Imágenes huérfanas Artículos populares Artículos más solicitados Artículos cortos Artículos largos Artículos nuevos Todas las páginas (alfabético) Direcciones IP bloqueadas Página de mantención Fuentes externas de libros Versión para imprimir Discusión Registrase/Entrar Ayuda Otros idiomas: Dansk(Danés) English (Inglés) Italiano Nederlands (Holandés) Premio Nobel de Química (Redirigido desde Premio Nobel/Química Ver enlace: http://www.nobel.se/chemistry/laureates/index.html William S. Knowles Ryoji Noyori K. Barry Sharpless Alan J Heeger, Alan G MacDiarmid, Hideki Shirakawa Ahmed H. Zewail Walter Kohn, John A. Pople Paul D. Boyer, John E. Walker, Jens C. Skou Robert Curl , Sir Harold Kroto Richard Smalley Paul J. Crutzen, Mario J. Molina, F. Sherwood Rowland George A. Olah Kary B. Mullis, Michael Smith Rudolph A. Marcus

14. Nobel Peace Prize and inventor of the mass spectrograph, wins nobel Prize for prize was divided betweenSir Arthur Harden and hans karl august simon von eulerchelpin for their http://din-timelines.com/1920s-npp.shtml

Din Timelines World History Timelines The Depression- 1930s Home 1920s Links? Nobel Prizes Sports ... Contact Us Can't find it? Try this search of the Web Search Page Search the Web. We are offering an exclusive Din Timelines version of the award winning Alexa Toolbar . The toolbar is loaded with useful information about every site on the web, like customer reviews, traffic rankings, and related links. Download this IE plugin and use the toolbar to help support Din Timelines. amazon books Dinosaurs in the Attic: An Excursion into the American Museum of Natural History by Douglas J. Preston Our Price: Good to Great: Why Some Companies Make the Leap... and Others Don't by Jim Collins Our Price: Krakatoa : The Day the World Exploded: August 27, 1883 by Simon Winchester Our Price: Once Upon a Time: Behind the Fairy Tale of Princess Grace and Prince Rainier by J. Randy Taraborrelli Our Price: Lee: The Last Years by Charles Bracelen Flood Our Price: The Civil War Trilogy: Gods and Generals/the Killer Angels/the Last Full Measure by Michael Shaara Our Price: The Language Police: How Pressure Groups Restrict What Students Learn by Diane Ravitch Our Price: DNA: The Secret of Life by James D. Watson

15. PREMIOS NOBEL EN QUIMICA Translate this page PREMIOS nobel EN QUIMICA. NOMBRE. AÑO. NOMBRE. AÑO. Hinshelwood, Sir Cyril Norman.1956. euler-chelpin, hans karl august simon von. 1929. Semenov, Nikolay Nikolaevich. http://galeon.hispavista.com/labquimica/sopacademico/pnobel/nobel.htm

PREMIOS NOBEL EN QUIMICA NOMBRE AÑO NOMBRE AÑO Hoff, Jacobus Henricus Van't Debye, Petrus Josephus Wilhelmus Fischer, Hermann Emil Haworth, Sir Walter Norman Arrhenius, Svante August Karrer, Paul Ramsay, Sir William Kuhn, Richard Baeyer, Johann Friedrich Wilhelm Adolf Von Butenandt, Adolf Friedrich Johann Moissan, Henri Ruzicka, Leopold Buchner, Eduard De Hevesy, George Rutherford, Lord Ernest Hahn, Otto Ostwald, Wilhelm Virtanen, Artturi Ilmari Wallach, Otto Northrop, John Howard Curie, Marie Stanley, Wendell Meredith Grignard, Victor Sumner, James Batcheller Sabatier, Paul Robinson, Sir Robert Werner, Alfred Tiselius, Arne Wilhelm Kaurin Richards, Theodore William Giauque, William Francis Willstatter, Richard Martin Alder, Kurt Haber, Fritz Diels, Otto Paul Hermann Nernst, Walther Hermann McMillan, Edwin Mattison Soddy, Frederick Seaborg, Glenn Theodore Aston, Francis William Martin, Archer John Porter Pregl, Fritz Synge, Richard Laurence Millington Zsigmondy, Richard Adolf Staudinger, Hermann Svedberg, The Pauling, Linus Carl Wieland, Heinrich Otto

16. GK- National Network Of Education Wieland, Heinrich Otto, 1927. Windaus, Adolf Otto Reinhold, 1928. eulerchelpin,hans karl august simon von, 1929. Harden, Sir Arthur, 1929. Fischer, hans, 1930. http://www.indiaeducation.info/infomine/nobel/nobelarchive.htm

Associated Agencies Booker Prize Winners International Awards World Nations: Famous Industrial Town ... Nobel Prize Winners Nobel Prize Winners Chemistry Literature Medicine Peace ... Economics Chemistry Hoff, Jacobus Henricus Van't Fischer, Hermann Emil Arrhenius, Svante August Ramsay, Sir William Baeyer, Johann Friedrich Wilhelm Adolf Von Moissan, Henri Buchner, Eduard Rutherford, Lord Ernest Ostwald, Wilhelm Wallach, Otto Curie, Marie Sabatier, Paul Grignard, Victor Werner, Alfred Richards, Theodore William

17. CNN.com 1930 hans Fischer. 1929 Arthur Harden, hans karl august simon von eulerchelpin.1928 Adolf Otto Reinhold Windaus. 1927 Heinrich Otto Wieland. http://www.cnn.com/SPECIALS/2001/nobel.100/chemistry.html

HOME OVERVIEW PROFILE: ANNAN PURSUIT OF PEACE ... RESOURCES Chemistry 2001 William Knowles, K. Barry Sharpless, Ryoji Noyori 2000 Alan J. Heeger, Alan G. MacDiarmid, Hideki Shirakawa 1999 Ahmed H. Zewail 1998 Walter Kohn, John A. Pople 1997 Paul D. Boyer, John E. Walker, Jens C. Skou 1996 Robert F. Curl Jr., Sir Harold W. Kroto, Richard E. Smalley 1995 Paul J. Crutzen, Mario J. Molina, F. Sherwood Rowland 1994 George A. Olah 1993 Kary B. Mullis, Michael Smith 1992 Rudolph A. Marcus 1991 Richard R. Ernst 1990 Elias James Corey 1989 Sidney Altman, Thomas R. Cech 1988 Johann Deisenhofer, Robert Huber, Hartmut Michel 1987 Donald J. Cram, Jean-Marie Lehn, Charles J. Pedersen 1986 Dudley R. Herschbach, Yuan T. Lee, John C. Polanyi 1985 Herbert A. Hauptman, Jerome Karle 1984 Robert Bruce Merrifield 1983 Henry Taube 1982 Aaron Klug 1981 Kenichi Fukui, Roald Hoffmann 1980 Paul Berg, Walter Gilbert, Frederick Sanger 1979 Herbert C. Brown, Georg Wittig 1978 Peter D. Mitchell 1977 Ilya Prigogine 1976 William N. Lipscomb

18. Laureáti Nobelovy Ceny Za Chemii Informace o knize vydané nakladatelstvím Alda.Category World Czech Veda Chemie...... Jejich plné znení je uverejnováno v publikaci Les Prix nobel. 1929, Sir ArthurHarden. 1929, hans karl august simon von eulerchelpin. 1930, hans Fischer. http://mujweb.atlas.cz/www/nobelchemie/

Laureáti Nobelovy ceny za chemii OLOMOUC, ALDA 1998 ISBN 80-85600-54-4 Struktura stránky: Na poèátku byl dynamit struèný životopis Alfreda Bernharda Nobela a histo rie Nobelovy nadace - Nobelova cena za chemii (pøehled státù podle poètu udìlených cen) Laureáti Nobelovy ceny za chemii v letech 1901-1998 Recenze knihy Kniha - Laureáti Nobelovy ceny za chemii Alfred Bernhard Nobel 21. 10. 1833 Stockholm - 10. 12. 1896 San Remo Na poèátku byl dynamit Alfred Bernhard Nobel (21. 10. 1833 Stockholm – 10. 12. 1896 San Remo) patøil k nejvýznamnìjším vynálezcùm devatenáctého století. Pøihlásil na tøistapadesát patentù ve všech státech svìta a málokdo se dožil uplatnìní svých vynálezù jako právì on. Jeho vynálezy byly výsledkem práce Nobelových laboratoøí v Nìmecku, Francii, Skotsku, Itálii a Švédsku. Své objevy realizoval v devadesáti továrnách a firmách dvaceti zemí pìti kontinentù. Pocházel z rodiny švédského chemika a podnikatele, ale rodina záhy odešla do Ruska, kde jeho otec díky vynálezùm protipìchotních a vodních min dosáhl velmi rychle váženého postavení. Alfred Nobel je znám pøedevším jako vynálezce smutnì proslaveného dynamitu (1867), ale obrovskou senzaci zpùsobil také jeho testament, který napsal na sklonku svého života 27. listopadu 1895 v Paøíži. Vyøízení pozùstalosti se protáhlo až do roku 1900, nebo nìkteøí zákonní dìdicové se snažili zpochybnit její platnost, a potíže nastaly také kvùli Nobelovu skuteènému bydlišti a váhavému postoji institucí, které mìly podle závìti pøevzít odpovìdnost pøi udílení penìžitých odmìn. Založení Nobelovy nadace a pøedpisy pro instituce oprávnìné udìlovat ceny schválil švédský král 29. èervna 1900 a první Nobelovy ceny byly udìleny již o rok pozdìji.

19. November 7 - Today In Science History (source), Died 7 Nov 1964 (born 15 Feb 1873) hans karl august simon von eulerchelpin,a German-born Swedish biochemist, shared the 1929 nobel Prize for http://www.todayinsci.com/11/11_07.htm

NOVEMBER 7 - BIRTHS Norton David Zinder (source) Born 7 Nov 1928 American biologist and molecular geneticist who studied a species of Salmonella (bacteria that cause illnesses such as typhoid fever or food poisoning in humans and other warm- blooded animals). He discovered genetic transduction, or transfer of genetic information by viruses. Genetic material is transferred from one bacterial cell to another by means of a phage, or a virus that invades the bacterial cell, assumes control over the cell's genetic material, reproduces, then eventually destroys the cell. His discovery of this genetic transfer has led to further studies into the mapping and behavior of genes found in bacteria. Daniel Nathans in collaboration with Zinder in 1962 demonstrated that RNA from a bacterial virus directed the synthesis by cell extracts of viral coat protein. Konrad Lorenz (source) Born 7 Nov 1903; died 27 Feb 1989. Austrian zoologist , founder of modern ethology, the study of animal behaviour by means of comparative zoological methods. He was known affectionately by his pupils as the "father of the grey geese" which he studied. His ideas revealed how behavioral patterns may be traced to an evolutionary past, and he was also known for his work on the roots of aggression. He shared the 1973 Nobel Prize for Physiology and Medicine, for developing a unified, evolutionary theory of animal and human behaviour. He was also a vehement environmentalist, criticizing prodigality and believed that nature protection is necessary for the preservation of humanity. Even late in life, he participated in demonstrations even if in conflict with government and authorities.

20. February 15 - Today In Science History hans karl august simon von eulerchelpin, a German-born Swedish biochemist, sharedthe 1929 nobel Prize for Chemistry with Sir Arthur Harden for work on the http://www.todayinsci.com/2/2_15.htm

FEBRUARY 15 - BIRTHS Herman Kahn (source) Born 15 Feb 1922; died 7 Jul 1983. American physicist, military analyst (1948-61) and futurist best known for his controversial studies of nuclear warfare. Kahn won recognition for his dispassionate analysis of nuclear war in his books On Thermonuclear War (1960) which still, in its detached analysis of various nuclear-war scenarios, retains the power to shock.and Thinking About the Unthinkable (1962) which predicted the probability and survivability of nuclear war. Later books included the optimistic The Year 2000 (1967) and Why ABM ? (1969). In 1961 he founded the influential Hudson Institute in New York to make reasoned predictions on world affairs, from narcotics policy to global economics, energy, international trade, population, transportation, crime, medicine. Albert C. Gilbert (source) Born 15 Feb 1884; died 1961. Albert Carlton Gilbert was the inventor of the Erector set. Gilbert founded the A.C. Gilbert Co. New Haven, Connecticut in 1908 as a manufacturer of boxed magic sets. When he introduced Erector Sets in 1913, there were several construction toys out. The most prominent was the Meccano construction toy developed by Hornby in England, which consisted of pulleys, gears, and several 1/2" wide strips of varying length with holes evenly spaced on them. Gilbert needed something unique, and created was the square girder. Gilbert's Erector sets included several 1" wide strips with triangles cut in them and the edges bent over so 4 strips could be put together with 2 screws to form a very sturdy square girder. Erector Sets sold 30 million over the next 40 years.

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