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"We have conquered pain." A Celebration of Ether 1846-1996 Medicine's Greatest Gift Ether by John C. Warren, M.D. Conquering Surgical Pain: Four men stake their claim An Artist's Interpretation The Ether Dome: The resoration of an icon Surgery before Anesthesia The evolution of ether: Today's anesthesiology [ Used with Permission ] MGH Hotline is published weekly by the MGH Development and Public Affairs Office. Submit news tips and story ideas to ...


Multiple Choices The document name you requested (/vaccines-diseases/history/history.htm) could not be found on this server. However, we found documents with names similar to the one you requested. Available documents: /vaccines-diseases/history/history.shtml (common basename)


To be published in Chimia, 1998, 11/98. A Web version has been available since 4/06/98 as http://www.ch.ic.ac.uk/rzepa/chimia/ A History of Hyperactive Chemistry on the Web: From Text and Images to Objects, Models and Molecular Components. Henry S. Rzepa Department of Chemistry, Imperial College of Science, Technology and Medicine, London, SW7 2AY. Introduction: 1970-1993 A retrospective view of the development of the scientific and chemical Internet suggests that the chronology ...


About Temperature This document was prepared for the middle school math teachers who are taking part in Project Skymath. It is also hoped that the general public will find it interesting. Disponible en espanol, toque aqui. Contents (click on star) What is Temperature The Development of Thermometers and Temperature Scales Heat and Thermodynamics The Kinetic Theory Thermal Radiation 3 K - The Temperature of the Universe Summary Acknowledgments References What is Temperature? ...


The Discovery of Argon: a Case Study in Scientific Method Carmen J. Giunta, Department of Chemistry, Le Moyne College, Syracuse, NY 13214 Presented at the 211th ACS National Meeting, New Orleans, LA, March 24, 1996. Copyright © 1996 Abstract The history of science is full of stories which exhibit scientific methodology to an exemplary degree. Such stories can be vehicles for the teaching of scientific thought to non-science majors in general education science courses, particularly if they d ...


Welcome to the Official Anglesey Sea Zoo Website - Rollover / Click the buttons above for links to our various pages ... Click Here for the latest Flash Plugin We look forward to welcoming you to Anglesey Sea Zoo We will be open from 11th February 2006 until 5th November 2006. Byddwn ar agor o Chwefror 11eg 2005 hyd at 5eg Tachwedd 2006. Click here for our opening times and prices for 2006 The Anglesey Sea Zoo is Wales lar ...






BEGINNINGS OF PHOTOGRAPHY, The First, the name. We owe the name "Photography" to Sir John Herschel , who first used the term in 1839, the year the photographic process became public. (*1) The word is derived from the Greek words for light and writing. Before mentioning the stages that led to the development of photography, there is one amazing, quite uncanny prediction made by a man called de la Roche (1729- 1774) in a work called Giphantie. In this imaginary tale, it was possible to capture ...


Chemical & Engineering News January 12, 1998 Copyright © 1998 by the American Chemical Society From Coal Tar to Crafting a Wealth of Diversity Shaped in part by the demands and spoils of war and in part by boundless ingenuity and entrepreneurial spirit, the chemical industry has changed the face of the world Marc S. Reisch C&EN Northeast News Bureau A history of the chemical enterprise over the 75-year period from 1923 to 1998 doesn't begin with a single cataclysmic event o ...


50 Chemical Anniversaries 1997 What exciting events can be commemorated in 1997? Sugar from sugar beet, the first real photograph, and the discovery of chromium, nitrogen and oxygen, nitroglycerine and the electron can all be celebrated in 1997. Each year the first issue of Nature has an article on notable anniversaries by J.L. Heilbron and W.F.Bynum. In their introduction this year (2/1/97) they pick the electron as the star of 1997: "The anniversary of the year is the discovery in ...


[The views here are my own, and do not represent the policy of any organisation with which I am associated.] A recent issue of Education in Chemistry (the Journal of the Royal Society of Chemistry) has an article in its EndPoint series querying ‘Why are a lot of intelligent people turned off from studying Chemistry?’. Two reasons suggested were that Chemistry is too abstract in its use of the particle model, and that Chemistry needs to be ‘imbued with real life [and make] more use of co ...


DDT @ 3Dchem.com Banned Insecticide Links : Molecules of the Month, A to Z Index of Structures, Top 50 Prescription Medicines, Gallery, Library of Inorganic Structures (over 1600 structures), Interactive 3D Periodic Table, 3D Stereo Glasses, Desktop Wallpaper, Medical Advise and Search 3Dchem.com Home > DDT (Molecule of the Month for August 1997) click on the picture above to interact with the 3D model of the DDT structure DDT the first of the chlorinated organic insecticides, ...


[ Home ] [ Water ] [ Surfactants ] [ Detergent Books ] [ History ] [ Synthetics ] [ Soil ID ] Home Development of the Detergent Industry Although the start of the synthetic detergent industry is not shrouded in the veils of history as were the beginnings of the soap industry, it is nevertheless not easy to pinpoint exactly when the detergent industry, as such, came into being. The primary problem is to decide exactly what is being referred to as a synthetic detergent. The term ...


Development of Dalton's Atomic Theory The question of what the matter of the universe consists of attracted the consideration of philosophers and scientists over many centuries. By the early nineteenth century, the atomic theory was generally accepted. Consider the ideas of some ancient Greeks Galileo, Bacon, Boyle and Newton How did Dalton's atomic theory develop? Dalton's atomic theory Contributions from scientists up to Rutherford and Bohr




Advanced Search 200 Years of History Company at a Glance DuPont Heritage 200th Anniversary Board of Directors Meet the Executives DuPont Businesses & Joint Ventures Subsidiaries DuPont Worldwide DuPont Motorsports Timeline 1788 | 1800s | 1900s | 1910s | 1920s | 1930s | 1940s | 1950s | 1960s | 1970s | 1980s | 1990s | 2000s 1788 Eleuthère Irénée du Pont de Nemours, at age 16, works a ...


UP to Leo Szilard Online Einstein to Roosevelt, August 2, 1939 In the summer of 1939, six months after the discovery of uranium fission, American newspapers and magazines openly discussed the prospect of atomic energy. However, most American physicists doubted that atomic energy or atomic bombs were realistic possibilities. No official U.S. atomic energy project existed. Leo Szilard was profoundly disturbed by the lack of American action. If atomic bombs were possible, as he believed they ...


Molecules 1998, 3, 94 - 99 Elemental and Molecular Heritage: An Internet-based Display Henry S. Rzepa Department of Chemistry, Imperial College of Science, Technology and Medicine, London, SW7 2AY, UK E-mail: h.rzepa@ic.ac.uk Received: 3 March 1998 / Accepted: 6 March 1998 / Published: 9 March 1998 Abstract: The background to a Web page describing elemental and molecular heritage at Imperial College chemistry department is described. Photographs are shown of the original ...


The names of the elements often have interesting historical associations – and sometimes obscure ones. Their origin is given briefly here, as well as the date of their discovery. You might give some thought as to why elements were discovered when they were. The date given is for the isolation of the element; in a number of cases, boron for example, compounds of the element were recognised long before the element itself could be isolated. Name ZAOrigin of nameDate & discoverer(s) Act ...


Image credits From Primordial Soup to the Prebiotic Beach An interview with exobiology pioneer, Dr. Stanley L. Miller, University of California San Diego By Sean Henahan, Access Excellence Join the exobiology discussion 1n 1953, a University of Chicago graduate student named Stanley Miller working in Harold Urey's lab flipped a switch sending electric current through a chamber containing a combination of methane, ammonia, hydrogen and water. The experiment yielded organic ...


Section II The Discovery of C Index Original Motivation for Experiments The Apparatus The Experimental Results Eureka: The Structural Conjuncture Activity II.D Original Motivation for Experiments The experiments that led to the discovery of C were aimed at simulating in the laboratory the conditions under which carbon nucleates in the atmosphere of a cool carbon-rich red giant star. The specific goal of the work was to explore the possibility that long carbo ...


Andersen Group El.-Phon. QMC C60 GW Resistivity saturation A brief history of C60 C60 is a molecule that consists of 60 carbon atoms, arranged as 12 pentagons and 20 hexagons. The shape is the same as that of a soccer ball: The black pieces of leather are the pentagons, the hexagons are white. There are 60 different points where three of the leather patches meet. Imagine a carbon atom sitting at each of these points, and you have a model of the C60 molecule. That model, however, ...


Chemistry at the University of Texas: Great Chemists Quiz Libraries Web > Mallet Chemistry Library > Departmental History > Quiz On the outside of the old wing of Welch Hall there are 16 panels, inscribed with the names of great chemists of the past. Test your knowledge of chemical history by matching the names on the left with their major achievements on the right. To make things interesting, there are more achievements on the right than there are names on the left. How many of the extra ...


Henry Cavendish (1731-1810) Experiments on Air Philosophical Transactions 75, 372 (1785) In a paper, printed in the last volume of the Philosophical Transactions, in which I gave my reasons for thinking that the diminution produced in atmospheric air by phlogistication, is not owing to the generation of fixed air, I said it seemed most likely, that the phlogistication of air by the electric spark was owing to the burning of some inflammable matter in the apparatus; and that the fixed air, sup ...


Brief History of Radiotracer Chemistry 1895 William Roentgen discovers X-rays (1901 Nobel Prize in Physics). 1896 Henry Becquerel discovers natural radioactivity of uranium (1903 Nobel Prize in physics). 1898 Pierre and Marie Curie discover polonium and radium (1903 Nobel Prize in physics). 1911 George Hevesy uses radioactive lead as a tracer to proof left-over food being recycled into his meals (the Father of Nuclear Medicine). 1923 George Hevesy demonstrates the distribution of radioa ...


Nuclear Chemistry Discovery of the , ß, & ParticlesGrowth and Decay CurvesThe Structure of the Atom Discovery of , ß, & Particles The discovery of x-rays by William Conrad Roentgen in November of 1895 excited the imagination of a generation of scientists who rushed to study this phenomenon. Within a few months, Henri Becquerel found that both uranium metal and salts of this element gave off a different form of radiation, which could also pass through solids. By 1898, Marie Curie found th ...


You are here:About>Business & Finance>Inventors> Famous Inventions> Invention History Databases> Inventions A to Z Listings> G Start Inventions> History of Gasoline Business & Finance Inventors Essentials Beginners 101 Turn Ideas Into Money Beginners 101 Tips & Tutorials Find: A to Z Inventions Find: A to Z Inventors 20th Century Timeline Topics Inventing 101 - Beginners Patent Trademark Copyright Selling Ideas Non Disclosure Agreements Famous Inventions Famous Inventors Technolo ...


Humphry Davy Spartacus, USA History, British History, Second World War, First World War, Germany, Child Labour, Parliamentary Reform, Textile Industry, Author, Search Website, Email Humphry Davy, a woodcarver's son, was born in Penzance in 1778. After being educated in Truro, Davy was apprenticed to a Penzance surgeon. In 1797 he took up chemistry and was taken on by Thomas Beddoes, as an assistant at his Medical Pneumatic Institution in ...


Select Element------------------------Home------------------------ActiniumAluminiumAmericiumAntimonyArgonArsenicAstatineBariumBerkeliumBerylliumBismuthBohriumBoronBromineCadmiumCalciumCaliforniumCarbonCeriumCesiumChlorineChromiumCobaltCopperCuriumDubniumDysprosiumEinsteiniumErbiumEuropiumFermiumFluorineFranciumGadoliniumGalliumGermaniumGoldHafniumHassiumHeliumHolmiumHydrogenIndiumIodineIridiumIronKryptonLanthanumLawrenciumLeadLithiumLutetiumMagnesiumManga ...




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Nuclear Chemistry Discovery of the Neutron (1932) Dr. Frank Settle The story begins in 1932, with the discovery of the neutron by Sir James Chadwick, an English physicist. Sir James Chadwick (Courtesy of the American Institute of Physics) (left), Lord Rutherford at Cambridge (right)Until 1932, the atom was known to consist of a positively charged nucleus surrounded by enough negatively charged electrons to make the atom electrically neutral. Most of the atom was empty ...


Show menu RSS feeds | Free newsletterSource: University Of Pennsylvania Posted: February 7, 2001Yahoo: del.icio.us: Save This Page Collaboration Between Penn Chemist And Secret Service Points The Way To Improved Gathering Of Fingerprints Philadelphia -- What do you get when you cross an organic chemist with the U.S. Secret Service? In at least one case, such a partnership has resulted in a means of developing fingerprints at crime scenes that's less damaging to evidence, more ...


Show menu RSS feeds | Free newsletterSource: University Of Pennsylvania Posted: February 7, 2001Yahoo: del.icio.us: Save This Page Collaboration Between Penn Chemist And Secret Service Points The Way To Improved Gathering Of Fingerprints Philadelphia -- What do you get when you cross an organic chemist with the U.S. Secret Service? In at least one case, such a partnership has resulted in a means of developing fingerprints at crime scenes that's less damaging to evidence, more ...


Show menu RSS feeds | Free newsletterSource: University Of Pennsylvania Posted: February 7, 2001Yahoo: del.icio.us: Save This Page Collaboration Between Penn Chemist And Secret Service Points The Way To Improved Gathering Of Fingerprints Philadelphia -- What do you get when you cross an organic chemist with the U.S. Secret Service? In at least one case, such a partnership has resulted in a means of developing fingerprints at crime scenes that's less damaging to evidence, more ...


Battery, Baghdad, 250 BCE by Dennielle Downs,'00 and Ava Meyerhoff, '99 The Baghdad Battery is believed to be about 2000 years old (from the Parthian period, roughly 250 BCE to CE 250). The jar was found in Khujut Rabu just outside Baghdad and is composed of a clay jar with a stopper made of asphalt. Sticking through the asphalt is an iron rod surrounded by a copper cylinder. When filled with vinegar - orany other electrolytic solution - the jar produces about 1.1 volts. There is no wr ...


Home of the Ava Helen and Linus Pauling Papers.






Page 599 Technology in Australia 1788-1988 Table of Contents Chapter 9 I Introduction i The impact of British scientific ethos and technology ii The science/technology gap II The Australian Chemical Industry III Pharmaceuticals IV Chemists In Other Industries V The Dawn Of Modern Chemical Industry - High Pressure Synthesis VI The Growth Of Synthetic Chemicals - Concentration, Rationalisation And International Links VII Australian Industrial Chemical Research Lab ...


the classics pagesathenian painted pottery the chemistry of athenian pottery The Classics Pages Home What's New The Oracleof Loxias About Loxias Search Bookshop Classics news Acknowledgments Contact Loxias Letters Top 21 sites Entertainment Games and Quizzes Fun with Latin Words Maths & Classics Rude Latin Classic Cars Legal Latin Sporting Quotes Why Classics? Classical clichés Philosophy Plato's Republic A ...


Humboldt State University ® Department of Chemistry Robert A. Paselk Scientific Instrument Museum The article below appeared in Bulletin of the Scientific Instrument Society 62 (September1999) pp 19-22. The Evolution of the Abbe Refractometer Richard A. Paselk Department of Chemistry Humboldt State University, Arcata CA 95521 © 1998 Richard A. Paselk Nearly every student of organic chemistry has used a refractometer to aid in the identification of compounds. Today it is predomin ...


The history and chemistry of the Murexide dye There are four historical periods in the life of the purple murexide dye: When it was a chemical curiosity, made from boa constrictor excrement 1776-1820 more other pages can be found here ... When the chemistry began to be understood 1820-1840 more chemical equations for the synthesis of murexide from uric acid and a molecular model When industrial production began, based on guano 1840-1865 more ...


Introduction & Overview! Welcome to our History of Chemical Engineering & Chemical Technology. Our goal is to bring you a history of chemical engineering that encompasses its conceptual origins in Great Britain, subsequent struggle for survival in the United States, and concludes with a cornucopia of contributions made in this Century. Along the way, many tables and figures help illustrate the growth and change in the chemical industry, the chemical engineering profession, and its education ...


Home Browse and Comment Search Buy Books and CD-ROMs Help On the Nature of Things By Lucretius Written 50 B.C.E Translated by William Ellery Leonard On the Nature of Things has been divided into the following sections: Book I [94k] Book II [106k] Book III [95k] Book IV [117k] Book V [139k] Book VI [122k] Commentary: Many comments have been posted about On the Nature of Things. Read them or add your own. Reader Recommendations: Recommend a Web site you feel is appropriate to this work, list recommended Web sites, or visit a random recommended Web site. Download: A 415k text-only version is available for download. © 1994-2000


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Navigation Department of Chemistry This is the legacy site of the old Department of Chemistry, Manchester University. Chemistry at Manchester A Potted History of Chemistry at The University of Manchester This Department is one of the largest Chemistry Departments in Britain with a long and distinguished history as a leading Research School. Henry Roscoe, Professor of Chemistry from 1857 to 1886, built the first ever practical chemistry laboratory ...


DDT was first made by Zeidler1 way back in 1874, but its insecticidal properties were not discovered until 1938 by Paul Muller2 and colleagues working at the Swiss Geigy company. Today DDT is often portrayed as one of mankind's biggest mistakes, an environmental disaster with no redeeming features. So it comes as somewhat of a surprise to many that DDT is widely regarded as having saved more lives than any other manmade chemical (including such medicinal marvels as penicillin). In ...





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