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  • 41 Townsend, Matthew

    SUBJECT AREA: Textiles
    [br]
    b. Leicester (?), England
    d. after 1867 USA
    [br]
    English inventor of the latch needle for making seamless hose, and developer of ribbed knitting on circular machines.
    [br]
    Townsend, who described himself in his first patent as a framework knitter and afterwards as a hosier of Leicester, took out a patent in 1847 for the application of a "machine like that of a point net frame to an ordinary stocking-frame". He described needles and hooks of a peculiar shape which were able to take the work off the knitting machine, reverse the loops and return them again so that ribbed knitting could be made on circular machines. These became popular for knitting stockings which, although not fully fashioned, had sufficient strength to fit the leg. In 1854 he took out a patent for making round hose with heels and toes fashioned on other machines. In yet another patent, in 1856, he described a method of raising looped pile on knitted fabrics for making "terry" towelling fabrics. He could use different coloured yarns in the fabric that were controlled by a Jacquard mechanism. It was in the same year, 1856, in a further patent that he described his tumbler or latch needles as well as the making of figured patterns in knitting on both sides of the fabric with a Jacquard mechanism. The latch needles were self-acting, being made to move up and down or backwards and forwards by the action of cams set in the cylindrical body of the machine. Normally the needle worked in a vertical or inclined position with the previous loop on the shank below the latch. Weft yarn was placed in the hook of the needle. The needle was drawn down between fixed plates which formed a new loop with the weft. At the same time, the original loop already on the shank of the needle moved along the shank and closed the latch so that it could pass over the newly formed loop in the needle hook and fall over the end of the needle incorporating the new loop on its way to make the next row of stitches. The latch needle obviated the need for loop wheels and pressers and thus simplified the knitting mechanism. Townsend's invention was the forerunner of an entirely new generation of knitting machines, but it was many years before its full potential was realized, the bearded needle of William Lee being preferred because the hinge of the latch could not be made as fine as the bearded needle.
    Townsend was in the first rank of skilful manufacturers of fancy Leicester hosiery and had a good practical knowledge of the machinery used in his trade. Having patented his needles, he seems not to have succeeded in getting them into very profitable or extensive use, possibly because he fixed the royalty too high. His invention proved to be most useful and profitable in the hands of others, for it gave great impetus to the trade in seamless hose. For various reasons he discontinued his business in Leicester. He emigrated to the USA, where, after some initial setbacks, he began to reap the rewards of his skill.
    [br]
    Bibliography
    1847, British patent no. 11,899 (knitting machine). 1854, British patent no. 1,523 (seamless hose).
    1856, British patent no. 1,157 ("terry" towelling fabrics).
    1856, British patent no. 1,858 (latch needles and double-sided patterns on fabrics).
    Further Reading
    F.A.Wells, 1935, The British Hosiery and Knitwear Industry, London (mentions Townsend briefly).
    W.Felkin, 1967, History of the Machine-wrought Hosiery and Lace Manufactures, reprint, Newton Abbot (orig. pub. 1867) (a better account of Townsend).
    RLH

    Biographical history of technology > Townsend, Matthew

  • 42 على

    عَلَى \ against: touching (usually sth. upright): The rain beat against the window. He pressed his nose against the glass. on: showing where sb. or sth. is placed: He lay on his back on the bed. The picture hung on a nail on the wall. Your name is on the list. He hit me on the nose. The boat is on the river (in the water). The house is on the river (beside the water), as in the previous meaning, but with movement (often with to) He jumped on (to) his horse. The book fell on (to) the floor. onto: on to: He sprang onto the table. over: lying across; resting on; covering: A cloud was over the sun. She spread a cloth over the table, across the surface of Ships sail over the sea, above (in rank, etc.) He rules over a proud people, about; concerning They quarrelled over the resutl of the race. You need not hurry over your dinner. upon: on. \ عَلَى \ on shore, ashore: on dry land; not on the sea; on or to the shore: Sailors are unhappy ashore. We swam ashore from the boat. \ See Also نَحْوَ البَرّ، اليابسة (اليَابِسَة)‏ \ عَلَى \ ashore: on or to the shore: Sailors are unhappy ashore. We swam ashore from the boat. on shore, ashore: on dry land; not on the sea. \ See Also نَحْوَ الشّاطِئ \ عَلَى اتِّصَال (عكس مُنْقَطع عن)‏ \ in touch: (the opposite is out of touch) giving or receiving news: I’ve been in touch with my brother by telephone. The radio keeps us in touch with world events. \ عَلَى أتَمّ ما يكُون من التَّرتيب والهِنْدام \ spick and span: (as a predic. phrase) neat, clean and bright: Sailors usually keep their boats spick and span. \ عَلَى الأَثير \ on the air: being sent out on the radio or television. \ عَلَى أَحْسَن وَجْه \ best, well, better: in the best way: Peter played best last week. \ عَلَى أرْبَع \ on all fours: on hands and knees: She went down on all fours to look for the needle. \ عَلَى الأرض \ over: from an upright (or straight) position to a flat (or bent) position: I fell over. He knocked me over. She bent over to pick it up. \ عَلَى استعداد \ content: willing: I’m content to wait for my turn. \ عَلَى أشُدِّه \ in full swing: (of an activity) at its highest point; very busy: The party was in full swing when I arrived. \ عَلَى الإطلاق \ little: (coming just before the verb) not at all: I little knew (or Little did I know) that next day he would be dead. not in the least: not at all: It doesn’t matter in the least. whatever: at all: I have no money whatever. whatsoever: a strong form of whatever; at all: Tell him nothing whatsoever!. \ عَلَى الأَغْلَب \ for the most part: mostly: He is old and for the most part he stays at home. \ عَلَى أَقْصَى ما تستطيع رؤيتَه \ in the distance: far away (from the point where one is): In the distance he could see the mountains. \ عَلَى الأَقَلّ \ a good: (with numbers) at least: He lives a good 3 miles away. at least: (showing that sth. is true, necessary, etc., even if sth. else is not) in spite of what has just been said or is just going to be said: He may be lazy but at least he’s honest. You can at least be polite even if you don’t like him, not less than It cost at least $100. quite: at least; not less than: The journey took quite three hours. \ عَلَى الأَكثَر \ largely: mostly: The accident was largely his own fault. mainly: chiefly; mostly. \ عَلَى انفِراد \ private: (only in the phrase in private) privately; where nobody can hear except those concerned: May I speak to you in private. \ عَلَى أُهْبَة الاستعداد \ stand by: to be ready, in case one may be needed: The soldiers were told to stand by. \ عَلَى أَيّ حال \ anyhow: in any case: I don’t really need this; anyhow, it costs too much. anyway: in any case: I may be late; anyway, don’t wait for me, in any case I don’t really need this; anyhow, it costs too much. at all events, in any event: in any case; whatever may happen or has happened: He didn’t win but, at all events, he did try hard. at any rate: at least; in any case: He wasn’t there; at any rate, I don’t think he was. I may not succeed; but I’ll try, at any rate. in any case: no matter what else may be considered, anyhow: It costs too much. In any case, I don’t really need it. \ عَلَى أيَّة حال \ all the same, at the same time: (only at the start of a sentence; comparing points that are for and against) in spite of this: He’s not clever; all the same, he does try hard. however: all the same; in spite of what has just been said: I’m very tired; however, I’ll come and help you. \ عَلَى بُعد \ away: at a distance: Brighton is 60 miles away. Keep away from the wet paint. beyond: further; on or to the farther side: I looked across the river to the hills beyond. \ عَلَى التَّخْصِيص \ in particular: especially: I enjoyed his first song in particular. \ عَلَى التَّوَالي \ respectively: separately, in that order: Boys and girls will be examined on Monday and Tuesday respectively (the boys on Monday, the girls on Tuesday). \ عَلَى جَانِب \ up: along (up and down are both used like this, although the course may be quite level): He lives just up the road. \ عَلَى الجميع \ round: to everyone: He handed the coffee round. There were not enough cups to go round. \ عَلَى حَدٍّ \ as far as, so far as: (showing a limit): As far as I know, he’s not here. \ عَلَى حَدٍّ سَواء \ alike: in the same way: He treats us all alike. \ عَلَى حَدِّ عِلْمي \ to the best knowledge: as far as I know: To the best of my knowledge, he is honest (I have no reason to doubt his honesty). \ عَلَى حِدَة \ private: (only in the phrase in private) privately; where nobody can hear except those concerned: May I speak to you in private?. separate: not joined or shared; apart: Keep the new milk separate from the old. \ عَلَى حَقّ (مُحِقّ)‏ \ be in the right: not be at fault: Although they said she’d made a mistake, they discovered she was in the right. \ عَلَى حِين غِرَّة \ all of a sudden: in a sudden manner. suddenly: in a sudden manner: The door opened suddenly. \ عَلَى خَطَأ \ in the wrong: mistaken (in one’s judgement, behaviour etc.). \ عَلَى الدَّوام \ always: at all times. \ عَلَى رؤوس الأصابِع \ on tiptoe: on the tips of one’s toes: I can reach that if I stand on tiptoe. \ عَلَى الرّاجح \ likely: (usu. with very, most, more or quite) probably: She’s very likely right. \ عَلَى الرُّغْم مِن \ despite: in spite of: Despite his age, the old man walks several miles every day. for all: in spite of: For all his strength, he could not lift it. much as: although: Much as I admire him, I could not work with him. spite, in spite of: (of sth. that fails) even with: In spite of his efforts, he could not save her life, without regard to; not caring about (a difficulty) In spite of his illness, he attended the ceremony. \ عَلَى الرُّغْم مِنْ أَنَّ \ although: in spite of the fact that; (without a verb) in spite of being: Although (he was) ill, he went to work. \ عَلَى الرُّغْم من ذلك \ even so: in spite of that: He may be foolish; even so, you should help him. just the same: (showing one thing that is not the natural result of another) in spite of this: He’s a thief, but I like him just the same. nevertheless: in spite of that: I told him it would be dangerous, but nevertheless he did it. still: in spite of that: We rarely win; but still, we enjoy playing. \ عَلَى سَبيل المِثال \ for instance: as an example: He’s often late. Yesterday, for instance, he came home after midnight. \ عَلَى السَّطح كلِّه \ over: (esp. with all) across a surface: The table was wet all over. He rubbed it over with a dry cloth. \ عَلَى سَوِيَّة \ level: equal in height or position: His eyes were level with my shoulder. I soon drew level with the leading runner. \ عَلَى سَوِيَّة \ flush: exactly on a level with; not sticking out from; meeting exactly at the edges: The door is flush with the wall when it is closed. \ See Also مستوى (مُسْتَوًى)‏ \ عَلَى سَوِيَّة واحدة \ even: equal: The table legs were not of even length. He shared the money evenly among them. \ عَلَى شاكِلَة \ like: the same as: What is he like (in appearance and character)? He’s just like his father., What does it feel (or look or taste or smell or sound) like?. in the same way as:: He swims like a fish. \ عَلَى شَرْط \ provide (that), also providing (that): if; on condition that: I’ll go, provided (that) you’ll go too. \ عَلَى شَفَا \ on the brink of: close to (sth. dangerous or exciting): on the brink of war. on the point of doing sth.: starting to do sth.: I was on the point of telephoning you, when I got your letter. on one’s last legs: (of a person or thing) not expected to last much longer; worn out; almost in ruins: That company is on its last legs. on the verge of: close to: She was on the verge of tears. \ See Also شفير (الموت أو الإفلاس، إلخ)، عَلى وَشْك \ عَلَى صَهْوَةِ الجَوَاد \ on horseback: on a horse: He travelled on horseback. \ عَلَى ضِغْن \ grudgingly: unwillingly. \ See Also على غير رَغْبَة \ عَلَى طُولِ \ along: following the line of: He ran along the road. down: along (without regard to level): We raced down the street. My friend lives just down the road. \ عَلَى ظَهْر \ on deck: on an uncovered deck, in the open air. \ See Also سَطْح السفينة \ عَلَى ظَهْر الحِصان \ on horseback: on a horse: He travelled on horseback. \ عَلَى ظَهْر السَّفينة \ on board: on (or on to) a ship or aeroplane: There are 70 men on board. Can I go on board the aircraft?. \ عَلَى ظَهْر الصَّفْحَة \ overleaf: on the back of the page: Please fill in this paper, and sign your name overleaf. \ عَلَى عَرْض \ across: over; from one side to the other of: He ran across the street. There is a bridge across the stream. \ عَلَى العَكْس \ on the contrary: (expressing disagreement) the opposite is true: It’s not worn out - on the contrary, it’s quite new. \ عَلَى عِلْم بِـ \ familiar with: knowing; accustomed to: I’m not familiar with English law. \ عَلَى عُلُوّ \ high: (in compounds) to the height of: The grass was waist-high. \ عَلَى الغالِب \ probably: almost certainly; with little doubt: You’re probably right. \ عَلَى غَيْر انتظار \ surprisingly: unexpectedly: a surprisingly good result. \ عَلَى غَيْر رَغْبَة \ grudgingly: unwillingly. \ عَلَى غَيْر هُدًى \ adrift: (of boats) loose; floating about with no control: Our ship was wrecked and we were left adrift in a small boat on the ocean. \ عَلَى فَتَرات مُنْتَظِمة \ periodically: from time to time. \ عَلَى فَرض أنّ \ (conj.) supposing: if: Supposing he’s late, shall we wait for him? Even supposing the lorry comes, it will still be too late. \ عَلَى الفِطْرة \ na]ve: too simple to be sensible; lacking wisdom and experience: a na]ve question; a na]ve young girl. \ عَلَى فِكْرَة \ by the way: used to show that the speaker is about to change the subject: Thank you for your help. By the way, would you like to come to our party next week?. \ عَلَى الفَوْر \ directly: at once: He arrived directly after me. instantly: at once. off-hand: without thought or preparation: I can’t say off-hand what it cost, but it was over $1000. \ عَلَى قافية واحدة \ rhyme: (of word endings) to have the same sound: ‘Consideration’ rhymes with ‘nation’, ‘Port’ rhymes with ‘thought’. ‘Pleasure’ rhymes with ‘measure’ but not with ‘pressure’. \ عَلَى قَدْر \ according to: in the proper way for; depending on: Each man was paid according to his skill. \ عَلَى قَدَم وَسَاق \ in full swing: (of an activity) at its highest point; very busy: The party was in full swing when I arrived. \ عَلَى قَيْد الحَيَاة \ alive: living: He was buried alive when part of a cliff fell on him. \ عَلَى كُلّ حال \ at any rate: at least; in any case: He wasn’t there; at any rate, I don’t think he was. I may not succeed; but I’ll try, at any rate. \ عَلَى مَا يَبْدُو \ apparently: it seems (from what people say): I thought she was 15, but apparently is older. \ عَلَى ما يَصِل إليه عِلْمي \ to the best of my knowledge: as far as I know: To the best of my knowledge, my son has never met her. \ See Also على مَبْلَغ علمي \ عَلَى المَدَى الطَّويل \ in the long run: after a period of time; in the end: It’ll be cheaper in the long run to buy good quality shoes. \ عَلَى مسؤوليَّته الشخصيّة \ at one’s own risk: agreeing that any troube will be one’s own fault: The bridge is unsafe but you can cross it at your own risk. \ عَلَى مسافة قريبة مِن \ off: a short distance from: an island off the English coast. \ عَلَى مُسْتَوًى \ level: equal in height or position: His eyes were level with my shoulder. \ عَلَى مِصْرَاعَيْه (فَتَحَ الباب)‏ \ wide: (with open) fully: open the door wide. Leave it wide open. \ عَلَى نَحْو مماثِل \ similarly: in the same way: They were similarly dressed. \ عَلَى نَسَق \ on the lines of: in the general form of: We’re planning some sports on the lines of the Olympic Games, but for schoolboys only. \ عَلَى نَفْس الوَتيرة \ even: (of movement) regular; steady: Her heart was not beating evenly. \ عَلَى نَوبات \ fits and starts: in short bursts; starting and stopping: The engine only goes in fits and starts. \ See Also فترات \ عَلَى هذا المُعَدَّل \ at that rate: if those conditions continue: He keeps stopping for a rest; at that rate, he won’t finish the job today. \ عَلَى هذا النَّحْو \ so: in this way; in that way: Don’t shout so!. thus: in this way. \ عَلَى الهَوَاء \ on the air: being sent out on the radio or television. \ عَلَى وَتِيرَة واحدة \ monotonous: (of a voice, a job, a way of life, etc.) dull, never changing and therefore uninteresting. \ عَلَى وَجْهٍ \ unusually: (with an adj.) very; strangely: It is unusually cold in here today. \ See Also بشكل غير عاديّ \ عَلَى وَجْهِ التَّقْريب \ roughly: (with numbers and amounts) not exactly; about: roughly 50 trees; roughly a mile away. \ عَلَى وَجْهِ الخُصُوص \ particularly: especially: a particularly nasty smell. \ عَلَى الوَجهِ الصحيح \ duly: properly; as expected: The bill was duly paid. The train duly arrived. \ عَلَى وَجْهِ العُمُوم \ in general: in most cases: Men in general are taller than women. \ عَلَى وَجْهٍ ما \ somehow: in some way or other, by some means or other: I’ll pay for it somehow, even if I have to ask someone to lend me the money. \ عَلَى وَجْهٍ مُسْتَهْجَن \ oddly: strangely: She behaved very oddly last night. \ عَلَى مِقْدار عِلْمي \ for all I know: as far as I know: For all I know, you may have stolen this. \ عَلَى مَقْرُبةٍ \ near: close to, in position: His house is near my own. \ عَلَى مَقرُبة مِن \ about: around; near There’s a lot of illness about. I went out early, when no one was about (when no one else was out). \ عَلَى مَهْل \ leisurely: without haste: He likes a leisurely walk in the evening. \ عَلَى نَحْو أسوأ \ worse: more bad; more badly: Murder is worse than stealing. It is a worse crime. You write even worse than I do. \ عَلَى نَحْوٍ أَفْضَل \ better, well, best: in a better way: He drives better than I do. \ عَلَى نَحْو تامّ \ strictly: exactly: Strictly speaking (If I tell you the exact truth) this ticket is out of date; but I’ll let you travel with it. \ See Also كامل (كامِل)‏ \ عَلَى نَحْو خَطير \ badly: seriously: He was badly wounded. \ عَلَى نَحْو رَخْو \ loosely: in a loose way: a loosely tied knot. \ See Also غير مُحْكَم \ عَلَى نَحْو رَدِيء \ badly: in a bad manner: badly dressed; badly made. \ عَلَى نَحْو صارم \ strictly: very firmly: Smoking in this cinema is strictly forbidden. \ See Also دَقيق \ عَلَى نَحْو صَحيح \ right: correctly: You guessed right. \ عَلَى نَحْو صَحيح \ rightly: justly; correctly: You acted rightly. \ See Also ملائم (مُلائم)‏ \ عَلَى نَحْوٍ كَامِل \ absolutely: without conditions: You must agree absolutely and not to try to change matters later. \ عَلَى نَحو مألوف \ ordinarily: usually. \ عَلَى نَحْو مُرْضٍ \ well: (the adv. form of the adj. good; see better, best) in a good and pleasing way: Well done! You played very well. \ عَلَى نَحْو مُلحّ \ badly: (with need, want) very much: They need money badly. \ عَلَى وَشْك \ on the point of doing sth.: starting to do sth.: I was on the point of telephoning you, when I got your letter. \ عَلَى وَشْك أَنْ \ be about to do sth.: to be ready to do it; be just going to do it: I was about to go when he arrived. on the verge of: close to: She was on the verge of tears. \ عَلَى يَد (مِن قِبَل)‏ \ by: (showing who or what did sth.): He was bitten by a dog. \ عَلَى اليدين والرِّجلين \ on all fours: on hands and knees: She went down on all fours to look for the needle.

    Arabic-English dictionary > على

  • 43 عمل

    عَمَلٌ \ act: a deed; sth. done: Men judge us by our acts, not by our words. action: doing things: We want more action and less talk. activity: sth. one does; a form of work or play: Music and swimming are among our school activities. affair: a happening; event; action: The meeting was a noisy affair. appointment: the position for which sb. is chosen: I hope to get a government appointment. business: one’s work: My business is writing books. career: one’s job in life: What career shall I follow on leaving school? A business career?. deed: sth. done; an act: an evil deed. doing: (an) action: This damage was not my doing. Tell me about your doings in London. employment: work; activity: I am growing lazy for lack of employment. function: special work or duty: The function of an ear is to hear. job: regular employment: He has an office job. They lost their jobs when the factory closed, a piece of work I have several jobs to do in my garden. labour: hard work (esp. work with the hands; digging, lifting, carrying, etc.): Heavy labour is very tiring. occupation: employment; job: What is your occupation? Are you a teacher?. operation: the working of a machine or plan: The law is not yet in operation - it comes into operation next year. performance: (an act of) performing: Our team’s performance has been very good this year. There were seven performances of the play. post: a job with particular duties; an official position: He held the post of headmaster for ten years. profession: (used loosely, in a general sense) any work or job. thing: an action: You did the wrong thing. undertaking: a job that has been undertaken: a dangerous undertaking. work: doing or making sth.; sth. that needs doing; the opposite of rest and play: school work; office work; work in the home; a brain always at work (always busy), employment; a paid job He has left school and started work. I’m out of work (unemployed). Jane is at work (at her place of work), sth. sb. has made or done Writers have to sell their work. This crime was the work of a madman.. A work of art: the works of Shakespeare (his plays and poems; to be busy (for some good purpose) \ See Also نشاط (نَشاطٌ)، وظيفة (وَظيفَة)‏ \ أَعمال \ works. \ See Also عمل (عَمَل)‏ \ أَعْمال الخَشَب (في مَبْنى)‏ \ woodwork: the wooden parts of a structure; the art of making things with wood. \ أَعْمال منزليّة \ housework: work done in taking care of a house, esp. cleaning. \ عَمَلٌ أَحْمَق \ folly: foolishness; an example of this; youthful follies. \ عَمَلٌ بارِع \ trick: a skilful act that is done for amusement: Animals can be taught to perform tricks. \ عَمَلٌ تافِه \ trash: worthless writing, painting, etc.. \ عَمَلٌ تِجاريّ \ business: to trade in general: Social disorder is bad for business. Business is quiet today. \ عَمَلٌ تَخريبيّ \ sabotage: serious damage that is done secretly by an enemy, so as to make sth. useless (esp. a machine, a factory, a ship, a railway, etc.). \ عَمَلٌ رَتيب \ chore: a piece of uninteresting or disliked work: It’s such a chore to do the shopping every day. \ عَمَلٌ رتيب مُتكرِّر \ routine: a usual and regular way of doing things: Her morning routine is to wash, dress, feed the cats, sweep the floor and prepare breakfast. \ عَمَلٌ سَهْل \ child’s play: sth. that is very easy to do: Climbing hills is child’s play for a mountaineer. \ عَمَلٌ شاقّ \ task: a piece of work (usu. hard work) that has to be done: I was given the task of preparing the sports field for the races. toil: old use hard work. \ عَمَلٌ طائش \ escapade: a wild or slightly dangerous act, usu. against the rules. \ عَمَلُ القِسّيس \ ministry: the work of a Christian priest. \ عَمَلٌ مُتّصِل \ application: continual hard work: You need application to learn a foreign language. \ عَمَلٌ مُثير لا فائدة مِنْه \ stunt: a clever, sometimes dangerous, but useless act, esp. one which aims to draw public attention. \ عَمَلٌ مَجيد \ exploit: a bold and exciting deed: The lion-hunter described his exploits. \ عَمَلٌ مُخْزٍ \ outrage: a shameful or violent act that shocks public opinion. \ عَمَلٌ مزيَّف \ fake: (often attrib.) sth. that is not what it pretends or seems to be: This ring isn’t real gold, it’s a fake. \ عَمَلٌ وَحْشيّ \ atrocity: a very cruel action. \ عَمَلٌ وِدِّيّ \ a good turn: a helpful action: You did me a good turn. \ عَمَلٌ يَدَويّ \ handiwork: sth. done or made by a certain person: These pictures are all my own handiwork.

    Arabic-English dictionary > عمل

  • 44 Science

       It is a common notion, or at least it is implied in many common modes of speech, that the thoughts, feelings, and actions of sentient beings are not a subject of science.... This notion seems to involve some confusion of ideas, which it is necessary to begin by clearing up. Any facts are fitted, in themselves, to be a subject of science, which follow one another according to constant laws; although those laws may not have been discovered, nor even to be discoverable by our existing resources. (Mill, 1900, B. VI, Chap. 3, Sec. 1)
       One class of natural philosophers has always a tendency to combine the phenomena and to discover their analogies; another class, on the contrary, employs all its efforts in showing the disparities of things. Both tendencies are necessary for the perfection of science, the one for its progress, the other for its correctness. The philosophers of the first of these classes are guided by the sense of unity throughout nature; the philosophers of the second have their minds more directed towards the certainty of our knowledge. The one are absorbed in search of principles, and neglect often the peculiarities, and not seldom the strictness of demonstration; the other consider the science only as the investigation of facts, but in their laudable zeal they often lose sight of the harmony of the whole, which is the character of truth. Those who look for the stamp of divinity on every thing around them, consider the opposite pursuits as ignoble and even as irreligious; while those who are engaged in the search after truth, look upon the other as unphilosophical enthusiasts, and perhaps as phantastical contemners of truth.... This conflict of opinions keeps science alive, and promotes it by an oscillatory progress. (Oersted, 1920, p. 352)
       Most of the fundamental ideas of science are essentially simple, and may, as a rule, be expressed in a language comprehensible to everyone. (Einstein & Infeld, 1938, p. 27)
       A new scientific truth does not triumph by convincing its opponents and making them see the light, but rather because its opponents eventually die, and a new generation grows up that is familiar with it. (Planck, 1949, pp. 33-34)
       [Original quotation: "Eine neue wissenschaftliche Wahrheit pflegt sich nicht in der Weise durchzusetzen, dass ihre Gegner ueberzeugt werden und sich as belehrt erklaeren, sondern vielmehr dadurch, dass die Gegner allmaehlich aussterben und dass die heranwachsende Generation von vornherein mit der Wahrheit vertraut gemacht ist." (Planck, 1990, p. 15)]
       I had always looked upon the search for the absolute as the noblest and most worth while task of science. (Planck, 1949, p. 46)
       If you cannot-in the long run-tell everyone what you have been doing, your doing has been worthless. (SchroЁdinger, 1951, pp. 7-8)
       Even for the physicist the description in plain language will be a criterion of the degree of understanding that has been reached. (Heisenberg, 1958, p. 168)
       The old scientific ideal of episteґmeґ-of absolutely certain, demonstrable knowledge-has proved to be an idol. The demand for scientific objectivity makes it inevitable that every scientific statement must remain tentative forever. It may indeed be corroborated, but every corroboration is relative to other statements which, again, are tentative. Only in our subjective experiences of conviction, in our subjective faith, can we be "absolutely certain." (Popper, 1959, p. 280)
       The layman, taught to revere scientists for their absolute respect for the observed facts, and for the judiciously detached and purely provisional manner in which they hold scientific theories (always ready to abandon a theory at the sight of any contradictory evidence) might well have thought that, at Miller's announcement of this overwhelming evidence of a "positive effect" [indicating that the speed of light is not independent from the motion of the observer, as Einstein's theory of relativity demands] in his presidential address to the American Physical Society on December 29th, 1925, his audience would have instantly abandoned the theory of relativity. Or, at the very least, that scientists-wont to look down from the pinnacle of their intellectual humility upon the rest of dogmatic mankind-might suspend judgment in this matter until Miller's results could be accounted for without impairing the theory of relativity. But no: by that time they had so well closed their minds to any suggestion which threatened the new rationality achieved by Einstein's world-picture, that it was almost impossible for them to think again in different terms. Little attention was paid to the experiments, the evidence being set aside in the hope that it would one day turn out to be wrong. (Polanyi, 1958, pp. 12-13)
       The practice of normal science depends on the ability, acquired from examplars, to group objects and situations into similarity sets which are primitive in the sense that the grouping is done without an answer to the question, "Similar with respect to what?" (Kuhn, 1970, p. 200)
       Science in general... does not consist in collecting what we already know and arranging it in this or that kind of pattern. It consists in fastening upon something we do not know, and trying to discover it. (Collingwood, 1972, p. 9)
       Scientific fields emerge as the concerns of scientists congeal around various phenomena. Sciences are not defined, they are recognized. (Newell, 1973a, p. 1)
       This is often the way it is in physics-our mistake is not that we take our theories too seriously, but that we do not take them seriously enough. I do not think it is possible really to understand the successes of science without understanding how hard it is-how easy it is to be led astray, how difficult it is to know at any time what is the next thing to be done. (Weinberg, 1977, p. 49)
       Science is wonderful at destroying metaphysical answers, but incapable of providing substitute ones. Science takes away foundations without providing a replacement. Whether we want to be there or not, science has put us in a position of having to live without foundations. It was shocking when Nietzsche said this, but today it is commonplace; our historical position-and no end to it is in sight-is that of having to philosophize without "foundations." (Putnam, 1987, p. 29)

    Historical dictionary of quotations in cognitive science > Science

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