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101 Guericke, Otto von
[br]b. 20 November 1602 Magdeburg, Saxony, Germanyd. 11 May 1686 Hamburg, Germany[br]German engineer and physicist, inventor of the air pump and investigator of the properties of a vacuum.[br]Guericke was born into a patrician family in Magdeburg. He was educated at the University of Leipzig in 1617–20 and at the University of Helmstedt in 1620. He then spent two years studying law at Jena, and in 1622 went to Leiden to study law, mathematics, engineering and especially fortification. He spent most of his life in politics, for he was elected an alderman of Magdeburg in 1626. After the destruction of Magdeburg in 1631, he worked in Brunswick and Erfurt as an engineer for the Swedish government, and then in 1635 for the Electorate of Saxony. He was Mayor of Magdeburg for thirty years, between 1646 and 1676. He was ennobled in 1666 and retired from public office in 168land went to Hamburg. It was through his attendances at international congresses and at princely courts that he took part in the exchange of scientific ideas.From his student days he was concerned with the definition of space and posed three questions: can empty space exist or is space always filled? How can heavenly bodies affect each other across space and how are they moved? Is space, and so also the heavenly bodies, bounded or unbounded? In c. 1647 Guericke made a suction pump for air and tried to exhaust a beer barrel, but he could not stop the leaks. He then tried a copper sphere, which imploded. He developed a series of spectacular demonstrations with his air pump. In 1654 at Rattisbon he used a vertical cylinder with a well-fitting piston connected over pulleys by a rope to fifty men, who could not stop the piston descending when the cylinder was exhausted. More famous were his copper hemispheres which, when exhausted, could not be drawn apart by two teams of eight horses. They were first demonstrated at Magdeburg in 1657 and at the court in Berlin in 1663. Through these experiments he discovered the elasticity of air and began to investigate its density at different heights. He heard of the work of Torricelli in 1653 and by 1660 had succeeded in making barometric forecasts. He published his famous work New Experiments Concerning Empty Space in 1672. Between 1660 and 1663 Guericke constructed a large ball of sulphur that could be rotated on a spindle. He found that, when he pressed his hand on it and it was rotated, it became strongly electrified; he thus unintentionally became the inventor of the first machine to generate static electricity. He attempted to reach a complete physical explanation of the world and the heavens with magnetism as a primary force and evolved an explanation for the rotation of the heavenly bodies.[br]Bibliography1672, Experimenta nova (ut vocantur) Magdeburgica de vacuo spatio (New Experiments Concerning Empty Space).Further ReadingF.W.Hoffmann, 1874, Otto von Guericke (a full biography).T.I.Williams (ed.), 1969, A Biographical Dictionary of Scientists, London: A. \& C.Black (contains a short account of his life).Chambers Concise Dictionary of Scientists, 1989, Cambridge.Dictionary of Scientific Biography, Vol. V, New York.C.Singer (ed.), 1957, A History of Technology, Vols. III and IV, Oxford University Press (includes references to Guericke's inventions).RLH -
102 whitiwhiti whakaaro
communicate; communication; exchange ideas -
103 διαλογισμός
διαλογισμός, οῦ, ὁ (s. διαλογίζομαι; since Demosth. 36, 23; Polyb., Epict., Plut., ins, pap [incl. POxy 3313, 7 (II A.D.)], LXX; TestJob 22:6; TestJud 14:3).① the process of reasoning, reasoning of polytheists ἐματαιώθησαν ἐν τοῖς δ. αὐτῶν Ro 1:21.② content of reasoning or conclusion reached through use of reason, thought, opinion, reasoning, design (Ps.-Pla., Axioch. 367a φροντίδες καὶ διαλογισμοί; mostly LXX; EpArist 216; Jos., Bell. 1, 320; TestJud 14:3) Lk 2:35; 5:22; 6:8; 9:47 (for the nuance in vs. 46 s. 3) Ro 14:1 (διάκρισις 2). διαλογισμοὺς ποιεῖσθαι devise plans (PEdg 60 verso, 2; 7=PCairZen 362 verso, 2; 7 [243/242 B.C.]) 1 Cl 21:3. The thoughts of the wise of this world are known to God 1 Cor 3:20 (Ps 93:11); evil machinations Mt 15:19; Mk 7:21. κριταὶ δ. πονηρῶν judges w. evil thoughts Js 2:4 (but here δ. can also be the legal t.t. decision [BGU 19 I, 13; 226, 22; PTebt 27:35 (113 B.C.)]: judges who give corrupt decisions).③ verbal exchange that takes place when conflicting ideas are expressed, dispute, argument εἰσῆλθεν δ. an argument arose Lk 9:46 (cp. the nuance in vs. 47 s. 2); χωρὶς δ. without dispute Phil 2:14; 1 Ti 2:8.
См. также в других словарях:
exchange — ex|change1 W1S2 [ıksˈtʃeındʒ] n ▬▬▬▬▬▬▬ 1¦(giving/receiving)¦ 2¦(argument/discussion)¦ 3 exchange of ideas/information etc 4¦(something you buy)¦ 5¦(money)¦ 6¦(students/teachers)¦ 7¦(jobs/homes etc)¦ 8¦(fight)¦ 9¦(building)¦ ▬▬▬▬▬▬▬ … Dictionary of contemporary English
exchange — 1 /Iks tSeIndZ/ noun 1 GIVING/RECEIVING (C, U) the act of exchanging one thing for another or doing something to someone at the same time as they do it to you: an exchange of political prisoners | an honest exchange of information | fair exchange … Longman dictionary of contemporary English
exchange — {{Roman}}I.{{/Roman}} noun 1 giving/receiving sth in return for sth else ADJECTIVE ▪ fair ▪ mutual, reciprocal, two way ▪ We get together once a month for a mutual exchange of ideas. PREPOSITION … Collocations dictionary
exchange — 01. I bought this shirt here yesterday, but it s a little small. Can I [exchange] it for a larger size? 02. Do you know what the current [exchange] rate is for American dollars? 03. I need to [exchange] these pants for something in a slightly… … Grammatical examples in English
exchange — 1. noun 1) the exchange of ideas Syn: interchange, trade, trading, swapping, traffic, trafficking 2) a broker on the exchange Syn: stock exchange, money market; bourse 3) an acrimoniou … Thesaurus of popular words
exchange — 1. noun 1) the exchange of ideas Syn: interchange, trade, trading, swapping, traffic, trafficking 2) a brief exchange Syn: conversation, dialogue, chat, talk, discussion … Synonyms and antonyms dictionary
exchange of views — a disagreement between dogmatically opposed parties Mainly the language of diplomacy. Adjectival qualifications such as cordial or helpful do not indicate greater amity, nor is an exchange of ideas more propitious … How not to say what you mean: A dictionary of euphemisms
exchange ideas — index converse Burton s Legal Thesaurus. William C. Burton. 2006 … Law dictionary
IDEAS Group — The IDEAS Group is the International Defence Enterprise Architecture Specification for exchange Group. The deliverable of the project is a data exchange format for military Enterprise Architectures. The scope is four nation (plus NATO as… … Wikipedia
exchange — ex|change1 [ ıks tʃeındʒ ] noun *** ▸ 1 giving each other something ▸ 2 angry conversation ▸ 3 change type of money ▸ 4 change places with ▸ 5 place to buy & sell goods ▸ + PHRASES 1. ) count a situation in which one person gives another person… … Usage of the words and phrases in modern English
exchange — I UK [ɪksˈtʃeɪndʒ] / US noun Word forms exchange : singular exchange plural exchanges *** 1) [countable] a situation in which one person gives another person something and receives something else of a similar type or value in return exchange of:… … English dictionary
