1. Willard F. Libby - Biography willard frank libby was born in Grand Valley, Colorado, on 17th libby is a PhysicalChemist, and specialist in Besides the nobel Prize in Chemistry for 1960 http://www.nobel.se/chemistry/laureates/1960/libby-bio.html

Willard Frank Libby was born in Grand Valley, Colorado, on 17th December, 1908, to Ora Edward Libby and his wife Eva May ( Rivers). He attended grammar and high schools near Sebastopol, California, between 1913 and 1926, moving to the University of California at Berkeley in 1927, where he studied till 1933, taking his B.Sc. and Ph.D. degrees in 1931 and 1933 respectively. He was appointed Instructor in the Department of Chemistry at California University (Berkeley) in 1933 and during the next ten years was promoted successively to Assistant and then Associate Professor of Chemistry. He was awarded a Guggenheim Memorial Foundation Fellowship in 1941 and elected to work at Princeton University , but on 8th December, 1941, this Fellowship was interrupted for war work on America's entry into World War II, and Libby went to Columbia University on the Manhattan District Project, on leave from the Department of Chemistry, California University, till 1945.

2. Willard Frank Libby Winner Of The 1960 Nobel Prize In Chemistry willard frank libby, a nobel Prize Laureate in Chemistry, at the nobelPrize Internet Archive. willard frank libby. 1960 nobel Laureate http://almaz.com/nobel/chemistry/1960a.html

W ILLARD F RANK L IBBY 1960 Nobel Laureate in Chemistry for his method to use carbo 14 for age determination in archaeology, geology, geophysics, and other branches of science. Background Residence: U.S.A. Affiliation: University of California, Los Angeles, CA Featured Internet Links Search WWW Search The Nobel Prize Internet Archive Links added by Nobel Internet Archive visitors Willard Frank Libby – Biography (submitted by Chinnappan Baskar Back to The Nobel Prize Internet Archive Literature Peace ... Medicine We always welcome your feedback and comments

3. Index Of Nobel Laureates In Chemistry ALPHABETICAL LISTING OF nobel PRIZE LAUREATES IN CHEMISTRY. Name, Year Awarded.Alder, Kurt, 1950. Leloir, Luis F. 1970. libby, willard frank, 1960. http://almaz.com/nobel/chemistry/alpha.html

ALPHABETICAL LISTING OF NOBEL PRIZE LAUREATES IN CHEMISTRY Name Year Awarded Alder, Kurt Altman, Sidney Anfinsen, Christian B. Arrhenius, Svante August ... Medicine We always welcome your feedback and comments

4. Libby, Willard Frank libby, willard frank. willard libby. Copyright Archive Photos. (b. Dec. For thisdevelopment he was honoured with the nobel Prize for Chemistry in 1960. http://www.britannica.com/nobel/micro/348_3.html

Libby, Willard Frank Willard Libby (b. Dec. 17, 1908, Grand Valley, Colo., U.S.d. Sept. 8, 1980, Los Angeles, Calif.), American chemist whose technique of carbon-14 (or radiocarbon) dating provided an extremely valuable tool for archaeologists, anthropologists, and earth scientists. For this development he was honoured with the Nobel Prize for Chemistry in 1960. Libby received his Ph.D. from the University of California, Berkeley, where he was a member of the faculty from 1933 to 1945. He was with the Institute for Nuclear Studies at the University of Chicago (1945-59) and then was professor of chemistry at the University of California, Los Angeles, until his death. While associated with the Manhattan Project (1941-45), Libby helped develop a method for separating uranium isotopes, an essential step in the creation of the atomic bomb. In 1946 he showed that tritium, the heaviest isotope of hydrogen, was produced by cosmic radiation. The following year he and his students developed the carbon-14 dating technique. This technique is used to date material derived from former living organisms as old as 50,000 years. It measures small amounts of radioactivity from the carbon-14 in organic or carbon-containing materials and is able to identify older objects as those having less radioactivity. Libby also served on the U.S. Atomic Energy Commission (1955-59) and wrote Radiocarbon Dating

5. BRITANNICA Guide To The Nobel Prizes Over the past century, more than 80 nobel Prize winners, all experts in theirfield libby, willard frank (Chemistry, 1960) Radiocarbon Dating 14th Edition. http://www.britannica.com/nobel/bolnobelists.html

Many notable scholars have written for the since it began publication in 1768. Over the past century, more than 80 Nobel Prize winners, all experts in their field, have shared their knowledge with Britannica readers, contributing about 150 articles to the 9th-15th editions. A handful of these classic articles are available here ( see Albert Einstein Milton Friedman Linus Pauling Bertrand Russell ... Herbert Alexander Simon and George J. Stigler Adrian, Edgar Douglas Adrian, 1st Baron (Medicine, 1932) Chronaxie 14th Edition Equilibrium, Animal 14th Edition Nerve in part ) 14th Edition Allais, Maurice (Economics, 1988) Customs Unions and Trade Agreements 15th Edition International Trade in part ) 15th Edition Alvarez, Luis W. (Physics, 1968) Accelerators, Particle in part ) 14th Edition Angell, Sir Norman (Peace, 1933) Outlawry of War 14th Edition Pacifism 14th Edition Security in part ) 14th Edition War in part ) 14th Edition Appleton, Sir Edward Victor (Physics, 1947) Radiotelegraphy in part ) 14th Edition Wireless Telegraphy in part ) 14th Edition Aston, Francis William

6. Les Prix Nobel De Chimie Translate this page Les Prix nobel de Chimie. Scientifiques. Nationalités. 1901. Jacobus Henricus Van'tHoff. Pays-Bas. 1902. Tchécoslovaquie. 1960. willard frank libby. Etats-Unis. 1961. http://isimabomba.free.fr/prix_nobel/prix_nobel.htm

Les Prix Nobel de Chimie Scientifiques Jacobus Henricus Van't Hoff Pays-Bas Emil Hermann Fischer Allemagne August Svante Arrhenius Sir William Ramsay Royaume-Uni Adolf Von Baeyer Allemagne Henri Moissan France Eduard Buchner Allemagne Lord Ernest Rutherford Royaume-Uni Wilhelm Ostwald Allemagne O. Wallach Allemagne Marie Curie France Victor Grignard Paul Sabatier France France Alfred Werner Suisse T Richards Etats-Unis R Willstatter Allemagne F Haber Allemagne Walter Hermann Nernst Allemagne Royaume-Uni F Waston Royaume-Uni F Pregl Autriche R Zsigmondy Allemagne Theodor Svedberg H Wieland Allemagne Adolf Windaus Allemagne A Harden H Von Euler-Chelpin Royaume-Uni Allemagne H Fischer Allemagne Carl Bosch Friedrich Karl Rudolph Bergius Allemagne Allemagne Irving Langmuir Etats-Unis Harold Clayton Urey Etats-Unis France France Petrus Josephus Wilhelmus Debye Pays-Bas Sir Walter Norman Haworth Paul Karrer Royaume-Uni Suisse Allemagne Adolf Butenandt Leopold Ruzicka Allemagne Suisse Georg Hevesy de Heves Hongrie Otto Hahn Allemagne AJ Virtanen Finlande JB Sumer JH Northrop WM Stanley Etats-Unis Etats-Unis Etats-Unis R Robinson Royaume-Uni Arne Wilhelm Kaurin Tiselius William Francis Giauque Etats-Unis Otto Paul Hermann Diels Kurt Alder Allemagne Allemagne Glenn Theodore Seaborg Edwin Mattison McMillan Etats-Unis Etats-Unis AJP Martin LM Synge Royaume-Uni Royaume-Uni Hermann Staudinger Allemagne Linus Carl Pauling Etats-Unis Vincent du Vigneaud Etats-Unis CN Hinshelwood Royaume-Uni Russie A Todd Royaume-Uni Frederick Sanger Royaume-Uni J Heyrovsky Willard Frank Libby Etats-Unis Melvin Calvin Etats-Unis

7. Libby, Willard Frank libby, willard frank, 1908–80, American chemist, b. Grand Valley, Colo., grad. ofCalifornia at Los Angeles. libby was awarded the 1960 nobel Prize in http://www.infoplease.com/cgi-bin/id/A0829654

The # 1 wireless color security cam! Ultimate home movie ! Genuine Indian and Asian astrology reports and consultations by reputed Vedic Astrologers. Step-by-step guide to finding money for a growing business All Infoplease All Almanacs General Entertainment Sports Biographies Dictionary Encyclopedia Infoplease Home Almanacs Atlas Dictionary ... Fact Monster Kids' reference Info:Daily Fun facts Homework Center Newsletter You've got info! Help Site Map Visit related sites from: Family Education Network Encyclopedia Libby, Willard Frank Libby, Willard Frank, dating . He was the recipient of several other prizes, including the 1959 Albert Einstein award. Libby wrote Radiocarbon Dating Liard Libby Prison Search Infoplease Info search tips Search Biographies Bio search tips About Us Contact Us Link to Infoplease ... Privacy

8. Libby, Willard Frank. The Columbia Encyclopedia, Sixth Edition. 2001 2001. libby, willard frank. libby was awarded the 1960 nobel Prize in Chemistryfor his development (c.1946) of radioactive carbon14 dating. http://www.bartleby.com/65/li/Libby-Wi.html

Select Search All Bartleby.com All Reference Columbia Encyclopedia World History Encyclopedia World Factbook Columbia Gazetteer American Heritage Coll. Dictionary Roget's Thesauri Roget's II: Thesaurus Roget's Int'l Thesaurus Quotations Bartlett's Quotations Columbia Quotations Simpson's Quotations English Usage Modern Usage American English Fowler's King's English Strunk's Style Mencken's Language Cambridge History The King James Bible Oxford Shakespeare Gray's Anatomy Farmer's Cookbook Post's Etiquette Bulfinch's Mythology Frazer's Golden Bough All Verse Anthologies Dickinson, E. Eliot, T.S. Frost, R. Hopkins, G.M. Keats, J. Lawrence, D.H. Masters, E.L. Sandburg, C. Sassoon, S. Whitman, W. Wordsworth, W. Yeats, W.B. All Nonfiction Harvard Classics American Essays Einstein's Relativity Grant, U.S. Roosevelt, T. Wells's History Presidential Inaugurals All Fiction Shelf of Fiction Ghost Stories Short Stories Shaw, G.B. Stein, G. Stevenson, R.L. Wells, H.G. Reference Columbia Encyclopedia PREVIOUS NEXT ... BIBLIOGRAPHIC RECORD The Columbia Encyclopedia, Sixth Edition. Libby, Willard Frank

9. Libby, Willard Frank. The American Heritage® Dictionary Of The English Language libby, willard frank. SYLLABICATION Lib·by. PRONUNCIATION l b. DATES 1908–1980.American chemist. He won a 1960 nobel Prize for developing the method of http://www.bartleby.com/61/81/L0148100.html

Select Search All Bartleby.com All Reference Columbia Encyclopedia World History Encyclopedia World Factbook Columbia Gazetteer American Heritage Coll. Dictionary Roget's Thesauri Roget's II: Thesaurus Roget's Int'l Thesaurus Quotations Bartlett's Quotations Columbia Quotations Simpson's Quotations English Usage Modern Usage American English Fowler's King's English Strunk's Style Mencken's Language Cambridge History The King James Bible Oxford Shakespeare Gray's Anatomy Farmer's Cookbook Post's Etiquette Bulfinch's Mythology Frazer's Golden Bough All Verse Anthologies Dickinson, E. Eliot, T.S. Frost, R. Hopkins, G.M. Keats, J. Lawrence, D.H. Masters, E.L. Sandburg, C. Sassoon, S. Whitman, W. Wordsworth, W. Yeats, W.B. All Nonfiction Harvard Classics American Essays Einstein's Relativity Grant, U.S. Roosevelt, T. Wells's History Presidential Inaugurals All Fiction Shelf of Fiction Ghost Stories Short Stories Shaw, G.B. Stein, G. Stevenson, R.L. Wells, H.G. Reference American Heritage Dictionary libber ... BIBLIOGRAPHIC RECORD The American Heritage Dictionary of the English Language: Fourth Edition. Libby, Willard Frank

10. Willard Frank Libby willard frank libby. 1908 1980. For his technique and contributions, willardlibby was awarded the nobel Prize for Chemistry in 1960. http://emuseum.mnsu.edu/information/biography/klmno/libby_willard.html

Willard Frank Libby Willard Libby was an American Chemist, best known for his development of Carbon 14 (radiocarbon) dating techniques. Libby was born Dec. 17, 1908 in Grand Valley, Colorado. He obtained his Ph.D. from the University of California-Berkeley University of Chicago . He also conducted research there at the Institute of Nuclear Studies until 1959. Libby then found himself back at the University of California as Director of the Institute of Geophysics and Planetary Physics. He served in that capacity until his death. In 1947, Libby and his students at the Institute for Nuclear Studies developed the method of C14 dating using a highly sensitive Geiger counter. Carbon 14 is an unstable radioactive isotope that decays at a measurable rate upon the death of an organism. Libby was able to determine the age of organic artifacts by measuring the amount of remaining C14. He tested his process on objects of known age, such as timbers from Egyptian tombs. The tests proved reliable and it was assumed that this technique was accurate for objects up to 50,000 years of age. Later, this was extended to 70,000 years. Radiocarbon Dating Libby died Sept. 8, 1980 in Los Angeles of a lung ailment. He was cremated.

11. Libby, Willard Frank libby, willard frank (19081980). in 1947 of radiocarbon dating as a means of determiningthe age of organic or fossilized material won him a nobel prize in 1960 http://www.cartage.org.lb/en/themes/Biographies/MainBiographies/L/Libby/1.html

Libby, Willard Frank US chemist whose development in 1947 of radiocarbon dating as a means of determining the age of organic or fossilized material won him a Nobel prize in 1960. Libby was born in Grand Valley, Colorado, and studied at the University of California, Berkeley. During World War II he worked on the development of the atomic bomb (the Manhattan Project). In 1945 he became professor at the University of Chicago's Institute for Nuclear Studies. He was a member of the US Atomic Energy Commission 1954-59, and then became director of the Institute of Geophysics at the University of California. Having worked on the separation of uranium isotopes for producing fissionable uranium-238 for the atomic bomb, he turned his attention to carbon-14, a radioactive isotope that occurs in the tissues of all plants and animals, decaying at a steady rate after their death. He and his co-workers accurately dated ancient Egyptian relics by measuring the amount of radiocarbon they contained, using a sensitive Geiger counter. By 1947 they had developed the technique so that it could date objects up to 50,000 years old.

12. Willard Frank Libby willard frank libby (19081980) won the 1960 nobel prize in chemistry for discoveringa technique for dating objects of biological origin and used in http://www.cartage.org.lb/en/themes/Arts/scistamp/chm2/10.html

13. Libby, Willard Frank libby, willard frank. libby was awarded the 1960 nobel Prize in Chemistryfor his development (c.1946) of radioactive carbon14 dating. http://www.slider.com/enc/31000/Libby_Willard_Frank.htm

femail.com.au Home Encyclopeadia L Lem - Let ... Rope Ladders Trellian WebPage Slider Search: The Web Encyclopaedia Shopping Index Help Encyclopaedia Libby, Willard Frank 1908-80, American chemist, b. Grand Valley, Colo., grad. Univ. of California (B.S., 1931; Ph.D., 1933). He taught (1933-45) at the Univ. of California and was a chemist (1941-45) in the war research division at Columbia. From 1945 to 1954 he was with the Univ. of Chicago and was a member of the committee of reviewers for the Atomic Energy Commission (AEC); he was then (1954-59) an AEC commissioner. In 1959 he joined the faculty of the Univ. of California at Los Angeles. Libby was awarded the 1960 Nobel Prize in Chemistry for his development (c.1946) of radioactive carbon-14 dating . He was the recipient of several other prizes, including the 1959 Albert Einstein award. Libby wrote Radiocarbon Dating Add URL Advertise Contact Us dating Rope Ladder

14. Nobel Prize Winning Chemists nobel Prize Winning Chemists. 1959 1961 willard frank libby. The nobelPrize in Chemistry 1960. willard frank libby was born in Grand http://www.sanbenito.k12.tx.us/district/webpages2002/judymedrano/Nobel Winners/w

Nobel Prize Winning Chemists Willard Frank Libby The Nobel Prize in Chemistry 1960 Willard Frank Libby was born in Grand Valley, Colorado, on December 17, 1908 to Ora Edward Libby and his wife Eva May. He attended grammar and high schools near Sebastopol, California, between 1913 and 1926, moving to the University of California at Berkeley in 1927, where he studied till 1933, taking his B. Sc. and Ph. D. degrees in 1931 and 1933 respectively. Libby has performed a wide range of scientific advisory and technical consultant work with industrial firms associated with the Institute for Nuclear Studies, as well as with defense departments, scientific organizations and universities. Libby is a physical chemist and a specialist in radiochemistry particularly hot atom chemistry, tracer techniques, and isotope tracer work. He became well-known at Chicago University for his work on natural carbon-14 and its use in dating archaeological artifacts, and natural tritium, and its use in hydrology and geophysics. He was awarded the Nobel Prize In chemistry 1960 "for his method to use carbon-14 for age determination in archaeology, geology and geophysics, and other branches of science.

15. Nobel nobelWinning Chemists. Kurt Alder. Sidney Altman. Christian B. Anfinsen. Jean-MarieLehn. Luis F. Leloir. willard frank libby. William N. Lipscomb. Alan G. MacDiarmid. http://www.sanbenito.k12.tx.us/district/webpages2002/judymedrano/Nobel Winners/n

Nobel-Winning Chemists Kurt Alder Sidney Altman Christian B. Anfinsen Svante August Arrhenius ... Eduard Buchner Adolf Friedrick Johann Butenandt Melvin Calvin Thomas Robert Cech Hans von Euler-Chelpin John Warcup Cornforth Donald J. Cram Marie Curie Elias James Corey Petrus (Peter) Josephus Wilhelmus Debye Paul J. Crutzen Robert F. Curl, Jr. Johann Deisenhofer Otto Diels ... Dorothy Crowfoot Hodgkin Jacobus Henricus van't Hoff Roald Hoffman Robert Huber Jean Frederic Joliot Irene Joliot-Curie ... Back To Main Page

16. Willard Frank Libby Translate this page WF libby reçut le prix nobel de Chimie en 1960 pour sa méthode Finalement, le chimisteWillard frank libby a permis grâce à sa découverte d'établir une http://mendeleiev.cyberscol.qc.ca/chimisterie/9606/VWatier.html

Willard Frank Libby Datation au carbone-14 Biographie la technique de datation au carbone-14 T = 8040 log Ao/A Principes de base thermoluminescence BIBLIOGRAPHIE RENFREW, Colin. Les origines de l'Europe , Flammarion, 1979, 292 p. SEABORG, Glenn T. Willard Frank Libby , Physics Today, February 1981. , Science et Vie Junior, No13, 1er mars 1990. GRAVEL, Pauline. , Omniscience, No 66, 1er janvier 1992. , Lidis, 1974 p. 270. McGraw-Hill Encyclopedia of Science and Technology , Tome 10, Tome 14, 1992. Encyclopedia Universalis Document dans Internet: Higham Thomas. Radiocarbon Dating http://www2.waikato.ac.nz/c14/webinfo/int.html , Sherbrooke, QC Willard Frank Libby Liste - Chimie et chimistes Chimisterie Les mondes de CyberScol CyberScol

17. Liste - Chimie Et Chimistes Translate this page Lewis, Gilbert Newton Liens covalents. libby, willard frank Datation aucarbone-14. M. N. nobel, Alfred Dynamite nobel, Alfred Ses inventions. O.P. http://mendeleiev.cyberscol.qc.ca/chimisterie/listecc.html

Liste des recherches Guides de la Chimisterie. A Arrhenius, Svante August Changements climatiques Avogadro, Amedeo B Barton, Derek Harold Richard Bayer, Karl Joseph Purification de l'aluminium Becquerel, Henri Black, Joseph Identification du CO Bohr, Niels Structure de l'atome Bolton, Werner Von Boyle, Robert Acides et bases Bunsen, Robert Wilhelm C Cannizzaro, Stanislao Carothers, Wallace Nylon Cavendish, Henry Corryel, Charles Dubois Coulomb, Charles Augustin de Curie, Marie Historique de son oeuvre Curie, Marie Radium et polonium Curie, Pierre Curie, Pierre et Marie D Dalton, John Davy, Humphry E Einstein, Albert F Faraday, Michael G Gay-Lussac, Louis Joseph Volumes des gaz Geiger, Hans Compteur Geiger Guyton de Morveau, Louis-Bernard Nomenclature chimique H Hahn, Otto Hess, Henri Heisenberg, Werner Hodgkin, Dorothy Crowfoot I J K La structure du benzène L Langmuir, Irving Lavoisier, Antoine-Laurent de Balance Lavoisier, Antoine-Laurent de

18. University Of Chicago News: Nobel Laureates Other University of Chicago nobel Laureates include Enrico Fermi (Physics 1963), MertonMiller (Economic Sciences, 1990) and willard frank libby (Chemistry, 1960 http://www-news.uchicago.edu/resources/nobel/

Nobel Prize Centennial 1901-2001 University of Chicago News: Resources University of Chicago Nobel Laureates Seventy-four Nobel Laureates have been faculty members, students or researchers at the University of Chicago at some point in their careers. Eleven have won the Nobel Prize in the last decade alone. Of the 74 Laureates, 25 have won in Physics , 22 in Economic Sciences , 14 in Chemistry , 11 in Physiology or Medicine and two in Literature Michelson was the first American to win the Nobel Prize in any of the sciences. Six Laureates are currently members of the faculty: James Heckman (Economic Sciences, 2000), Robert Lucas (Economic Sciences, 1995), Robert Fogel (Economic Sciences, 1993), Gary Becker (Economic Sciences, 1992), Ronald Coase (Economic Sciences, 1991) and James Cronin (Physics, 1980). James Heckman , a Professor in Economics and Public Policy, studies methodologies used to measure the impact of social programs, such as minimum-wage legislation and anti-discrimination law. He shared the Nobel Memorial Prize in Economic Sciences for work on analyzing selective samples. Robert Lucas Robert Fogel , a Professor in the Graduate School of Business, shared the award for applying economics and statistics to the study of history. In his work on slavery in the United States, Fogel has argued that the market would not have ended slavery, as it remained a profitable and efficient system for slave owners.

19. University Of Chicago News: Nobel Laureates , willard frank libby Professor of Chemistry in the Department of Chemistry andthe Institute for Nuclear Studies, 194554. The nobel Prize in Chemistry 1960 http://www-news.uchicago.edu/resources/nobel/chemistry.html

University of Chicago News: Resources University of Chicago Chemistry Nobel Laureates Seventy-four Laureates have been faculty, students or researchers at the University of Chicago. Fourteen of those Laureates won prizes in Chemistry. Richard E. Smalley Research Associate in the James Franck Institute The Nobel Prize in Chemistry 1996 with Sir Harold W. Kroto and Robert F. Curl, Jr. F. Sherwood Rowland S.M., 1951; Ph.D., 1952; D.Sc (honorary), 1989. The Nobel Prize in Chemistry 1995 with Paul J. Crutzen and Mario Molina Paul Crutzen Visiting Professor in the Geophysical Sciences Division The Nobel Prize in Chemistry 1995 with F. Sherwood Rowland and Mario Molina Yuan T. Lee Assistant Professor in the Department of Chemistry , 1968-1971; Associate Professor, 1971-73; Professor, 1973-74. The Nobel Prize in Chemistry 1986 with Dudley Herschbach and John Polanyi Henry Taube Assistant Professor in the Department of Chemistry , 1946-1948; Associate Professor, 1948-1953; Professor, 1954-1960; Chairman, 1955-1958; Carl William Eisendrath Professor, 1960-1961. The Nobel Prize in Chemistry 1983 Herbert C. Brown

20. Willard Frank Libby willard frank libby was born in Grand Valley, Colorado, on December 17, 1908 (1)However, libby is most of Sciences upon his presentation of the nobel prize for http://inst.augie.edu/~kbhartma/libby.html

Willard Frank Libby The practice of radiocarbon dating is used to date deceased organic material. Carbon-14 is created in the upper atmosphere as cosmic rays bombard the earth with neutrons. These neutrons occasionally collide with a nitrogen atom, knocking the proton from the nucleus, thus creating a carbon-14 atom. Every living organism contains carbon-14 a radioactive isotope of carbon, in definite proportions to carbon-12 (the most abundant form of carbon). While the carbon-14 in an organism is constantly decaying, the consumption and respiration of the organism replenish it. Once an organism dies, carbon-14 can obviously no longer be replaced, and therefore, decays without replenishment as time goes on. Scientifical tests have determined that the half-life of carbon-14 is 5730 years, meaning that every 5730 years, half of the carbon-14 will have decayed from the original amount. As is evidenced by the graph, very little carbon-14 is left after 4 or 5 half-lifes, greatly limiting its range. After creating the device, the next thing to do was test it. Libby started by carbon dating the remains of recently deceased plant material, then proceeded to test petroleum samples. As was predicted the plant material had practically all of the carbon 14 still intact, while the petroleum had no detectable carbon-14, obviously because it is from deceased plant material millions of years old. Libby then tested wood from tombs of Egyptian kings that were known to be roughly 5,000 years old. Again the testing proved to be very accurate. While dating was not a revolutionary technique for the time, it was the first technique to be highly accurate, complementing the other methods of the time, pollen analysis and counting clay layers. Institutions around the world quickly developed carbon dating labs. A portable device was also invented for geologists in the field. However, this proved to be too large and bulky and couldn’t be transported by any trucks at the time. (2)

A  B  C  D  E  F  G  H  I  J  K  L  M  N  O  P  Q  R  S  T  U  V  W  X  Y  Z

Page 1     1-20 of 90    1  | 2  | 3  | 4  | 5  | Next 20