The publication of Darwin’s The Origin of Species in 1859 marked a dramatic turning point in scientific thought. The volume had taken Darwin more than twenty years to publish, in part because he envisioned the storm of controversy it was certain to unleash. Indeed, selling out its first edition on its first day, The Origin of Species revolutionized science, philosophy, and theology. Darwin’s reasoned, documented arguments carefully advance his theory of natural selection and his assertion that species were not created all at once by a divine hand but started with a few simple forms that mutated and adapted over time. Whether commenting on his own poor health, discussing his experiments to test instinct in bees, or relating a conversation about a South American burrowing rodent, Darwin’s monumental achievement is surprisingly personal and delightfully readable. Its profound ideas remain controversial even today, making it the most influential book in the natural sciences ever written—an important work not just to its time but to the history of humankind.

Renun?a?i la p?ine, nu mai m?nca?i cereale, abandona?i glutenul! Mesajul este c?t se poate de simplu – fugi de gluten ?i nu numai c? te vei sim?i mai bine, dar ?i vei face o favoare creierului. Aceast? teorie extrem de controversat?, care demonteaz? toate ipotezele nutri?ionale moderne, propulseaz? cartea lui Perlmutter pe primul loc ?n topul bestsellerurilor New York Time, ajuns? la al nou?lea tiraj ?i publicat? ?n 15 ??ri. Renumitul neurolog David Perlmutter dezv?luie un adev?r ?ngropat foarte mult timp ?n literatura de specialitate: carbohidra?ii distrug creierul. ?i nu numai carbohidra?ii nes?n?to?i, dar chiar ?i cei s?n?to?i, precum cerealele integrale care pot provoca demen??, ADHD, anxietate, migrene, depresie ?i multe altele. Dr. Perlmutter explic? mecanismele care au loc la nivelul creierului atunci c?nd acesta are de a face cu ingredientele comune din p?inea cea de toate zilele ?i din bolul cu fructe, de ce gr?simea ?i colesterolul sunt benefice pentru creier ?i cum pot stimula acestea regenerarea celular? la orice v?rst?. Oferind o privire ?n profunzime asupra felului ?n care putem prelua controlul ?genelor noastre inteligente“ prin alegeri specifice alimentare ?i de stil de via??, autorul demonstreaz? cum se pot fi ?nfr?nge cele mai de temut maladii ale noastre f?r? medicamente. ?n sus?inerea teoriilor expuse ?n prima parte a c?r?ii, dr. Perlmutter a definitivat un plan revolu?ionar de 4 s?pt?m?ni prin care ne ?nva?? cum s? reprogram?m destinul nostru genetic pentru ob?inerea performan?elor ?n ceea ce prive?te starea de s?n?tate. Concluzia este ?ncurajatoare – nu depinde dec?t de noi s? r?m?nem ?n deplin?tatea facult??ilor mintale p?n? la sf?r?itul vie?ii.

ntr-un trafic incontrolabil, a intra pe contrasens nu e un lucru de mirare. Ce te faci ns dac exist riscul s dai nas n nas cu… favorita preedintelui Cine pltete asigurarea“Liviu Brtescu nu se teme de sanciuni. Nu folosete cuvinte dantelate, nu ridic pe nimeni n slvi. El doar se strduiete s conduc atent…

A tr?i mult, ?n s?n?tate ?i fericire, a fost preocuparea dintotdeauna a omenirii. Antropologi, biologi ?i medici s-au str?duit de mii de ani s? g?seasc? cele mai bune c?i pentru a le asigura semenilor no?tri o via?? c?t mai lung?.Sintetiz?nd o asemenea experien?? ?n domeniul medicinei complementare ?i ad?ug?ndu-i rezultatele cercet?rilor gerontologice proprii, Fanic?-Voinea Ene, renumit specialist ?n sfera terapiilor naturiste, prezint? ?n aceast? lucrare metode ?i procedee practice, la ?ndem?na fiec?ruia dintre noi, pentru a ne prelungi via?a. Astfel, ve?i g?si ?n lucrare recomand?ri originale ?i de mare folos privind alimenta?ia s?n?toas?, m?surile pe care trebuie s? le lu?m pentru ?ncetinirea proceselor oxidative ?i, implicit, a ?mb?tr?nirii organismului, fortificarea sistemului imunitar, echilibrarea metabolismului, respectarea cronobiologiei umane, ?ntoarcerea la natur?, toate acestea constituind repere majore ale stilului de via?? pentru a deveni longevivi.

Psihocardiologia constituie o apari?ie editorial? inedit? ?n literatura medical? ?i psihologic? rom?neasc?, eviden?iind o rela?ie legitim? ?i plin? de aplica?ii practice ?ntre cele dou? specialit??i. Asocierea reu?it? ?ntre dou? personalit??i – profesorii Ioan-Bradu Iamandescu ?i Crina Julieta Sinescu de la UMF ?Carol Davila“, Bucure?ti – a f?cut posibil? realizarea acestei lucr?ri de mare amploare care abordeaz? domeniul psihocardiologiei. Profesorul Ioan-Bradu Iamandescu, personalitate a medicinei academice rom?ne?ti, primul profesor de Psihologie medical? ?i Psihosomatic?, s-a remarcat prin contribu?ii deosebite la statutul psihocardiologiei ca o ramur? distinct? a psihosomaticii, cu un cadru nosologic bine definit ?i cunoscut. El se num?r? printre marile personalit??i care s-au preocupat de ?mbun?t??irea ?nv???m?ntului clinic bazat pe o g?ndire modern? de orientare biopsihosocial? ?n practica medicinei. Prezen?? binecunoscut? ?n cardiologia din ?ara noastr?, prof. dr. Crina Julieta Sinescu a dovedit deplin? ?n?elegere pentru problematica psihocardiologiei, ?ncuraj?nd ?i particip?nd la realizarea unor cercet?ri referitoare la etiopatogenia psihosomatic? a hipertensiunii arteriale ?i a bolii cardiace ischemice, desf??urate ?n clinica pe care o conduce la spitalul ?Bagdasar-Arseni“. A oferit numeroase sugestii rezultate din observa?ia clinic? psihologilor cu care a elaborat ?n comun c?teva capitole ale acestei c?r?i. Lucrarea se adreseaz? ?n primul r?nd psihologilor clinicieni ?i corpului medical – ?n special cardiologilor, interni?tilor ?i medicilor de familie – dar ?i publicului larg, care cuprinde un mare num?r de bolnavi cardiaci, inclusiv aceia ??n devenire“, ce ar putea beneficia de cuno?tin?ele desprinse din paginile c?r?ii spre a preveni sau ?ncetini instalarea unei boli cardiace.

Whoever wishes to investigate medicine properly, should proceed thus: in the first place to consider the seasons of the year, and what effects each of them produces for they are not at all alike, but differ much from themselves in regard to their changes. Then the winds, the hot and the cold, especially such as are common to all countries, and then such as are peculiar to each locality. We must also consider the qualities of the waters, for as they differ from one another in taste and weight, so also do they differ much in their qualities.

Medicin? este un domeniu aflat ?ntr-o continu? schimbare, prin experien?a clinic? ?i studiile care l?rgesc mereu orizontul de cunoa?tere.Cartea de fa?? ?i ofer? viitorului asistent medical oportunitatea ?nsu?irii unor no?iuni de baz? din domeniul medicinii de laborator, la care se adaug? modalit??ile de prevenire ?i combatere a bolilor infec?ioase, precum ?i posibilit??ile actuale de tratare a acestora.Lucrarea comprim? ?i integreaz? informa?ii importante din domeniul virusologiei, bacteriologiei, parazitologiei, micologiei ?i imunologiei, fiecare dintre aceste ramuri cunosc?nd o dezvoltare independent? remarcabil? ?n ultimele decade.?ntregul material respect? programa de preg?tire a asisten?ilor medicali, adres?ndu-se tuturor elevilor ?colilor sanitare, indiferent de specialitate.

Geriatrie ?i geropatologie pentru asisten?i medicali vine ?n sprijinul elevilor ?colilor postliceale sanitare, la baza sa afl?ndu-se nevoia de cunoa?tere ?i perfec?ionare a viitorului asistent medical. Cre?terea demografic? a popula?iei v?rstnice impune o bun? cunoa?tere a particularit??ilor v?rstei a treia, at?t de publicul larg, c?t mai ales de personalul sanitar.Aceast? lucrare respect? programa de preg?tire a asisten?ilor medicali, ad?ug?nd ?i o serie de informa?ii care s? confere o perspectiv? unitar? asupra particularit??ilor fiziologice, patologice ?i terapeutice ale v?rstei a treia. Sunt abordate aspectele medico-sociale complexe ale procesului de ?mb?tr?nire, dar ?i evenimente cu un important r?sunet ?n via?a psiho-afectiv? a individului, precum pensionarea sau integrarea v?rstnicului ?n institu?ii specializate.Abordarea medico-psiho-social? a problematicii v?rstnicului ofer? o viziune integrat? a informa?iei, util? at?t elevilor ?colilor sanitare, c?t ?i asisten?ilor medicali. Totodat?, poate fi considerat un ?ndrumar util ?i studen?ilor facult??ilor de medicin? general? ?i farmacie, asisten?ilor sociali, psihologilor, medicilor de familie sau de alte specialit??i etc.

Aceast? carte, bazat? pe 20 de ani de cercetare clinic? ?i ?tiin?ific? ?n ce prive?te rolul apei ?n organism, prezint? descoperirea extraordinar? c? deshidratarea cronic? neinten?ionat? produce stres, dureri cronice ?i multe boli degenerative ?nso?ite de durere. Gura uscat? nu este singurul semn de deshidratare; este gre?it s? a?tepta?i p?n? vi se face sete. Ve?i afla care sunt semnalele emise de organism c?nd duce lips? de ap?. Corectarea aportului de ap? – da, de ap?! ap? natural?, c?t mai curat? – v? poate ajuta s? tr?i?i mai s?n?tos, bucur?ndu-v? de o via?? lipsit? de durere. Ve?i ?nv??a: cum s? preveni?i ?n mod natural boli precum astmul bron?ic, alergiile, hipertensiunea arterial?; cum s? ameliora?i durerile, inclusiv pirozisul, durerea de spate, durerea artritic?, durerea din colit? ?i migrenele; cum s? folosi?i apa pentru a preveni ?i combate ?mb?tr?nirea prematur?; cum s? elimina?i f?r? efort kilogramele ?n plus, natural ?i f?r? restric?ii alimentare.

In 1861, Henry Dircks, a civil engineer, of London, published a work entitled "Perpetuum Mobile; or, Search for Self-Motive Power, During the Seventeenth, Eighteenth and Nineteenth Centuries." The book contains 599 pages, and was followed in 1870, by a second series by the same author entitled "Perpetuum Mobile, or a History of the Search for Self-Motive Power from the Thirteenth, to the Nineteenth Century." In these two books there is amassed a wonderful amount of material showing on the part of the author diligence, great patience and wide and thorough search.The author of these works was not enamoured of his subject, and his books clearly show that he was not writing them because of any interest he had in the subject of Perpetual Motion. On the contrary, they appear to have been written because of a deep detestation entertained by the author for the subject of Perpetual Motion, and a contemptuous pity for any one seriously interested in the subject. Mr. Dircks's works may be said to be the works of a scold. His sentiments were deep, and his impulses strong, which accounts for the vast amount of labor he did in the preparation of his books. Those books are now out of print, and it is believed by the author of this book that they may well remain so. They contain much material that no one would be justified in wading through. The most complicated mechanisms devised by enthusiastic dreamers are shown in the same detail with which the inventors described them in presenting them to the public, or to the patent offices. Little is to be gained by this. So complicated are many of the devices that only technically trained engineers could read them understandingly, and few technically trained engineers are now greatly interested in self-motive power devices. We believe that every useful or interesting purpose is served if enough devices are collected, classified and presented to show the various principles relied upon by the inventors; with an explanation of why they failed—i. e., wherein the principles relied upon are wrong, and while possibly not out of harmony with any mechanical principles then known, are entirely out of harmony with principles since discovered and now well known. In the preparation of this volume a vast amount of the information furnished by the two works of Mr. Dircks has been rearranged, reclassified, and used.Everyone who has to any extent, by environment, associated with the mass of people who are not technically educated, knows that the persons who are still interested in the subject of Perpetual Motion, and who still seek its attainment, are not technically trained engineers or mathematicians, but for the greater part untrained people of naturally strong mechanical sense, and of natural mechanical and mathematical adaptation.This book is written for the perusal of that large class of people. It is not designed as an argument either for or against the possibility of the attainment of Perpetual Motion. The author is content to classify and present—clearly, it is hoped—the leading endeavors that have been known in that field of effort, and to explain their failure. It is believed by the author that the perusal of the present volume by anyone whose mind has been attracted by the subject of Perpetual Motion will result in an enlightenment, and, it is also believed, will have a tendency to direct his mind from a struggle with theories long ago exploded, and may result in directing his efforts to things practical, and not without hope of attainment.This work is offered only to minds mechanically or mathematically inclined. It is not even hoped that it will interest people who prefer fiction to fact, nor people who read simply for idle entertainment. ABOUT AUTHOR: The author has no apology to offer for the production of this book. He has spent his life in environments that have brought him into constant contact with mechanics, artisans and laborers as well as professional men, engineers, chemists and technical experts of various types. He knows a great many men—young men, for the most part—are constantly working on the old, old problem of Perpetual Motion; that much money, and much time are being spent in search of a solution for that problem which all scientific and technical men tell us is impossible of solution.It is believed by the author that a classification and presentation of selected groups of the devices produced in the past by which it was by the inventor believed, self-motive power had been attained, will save much work in fields already thoroughly exploited.So far as the author knows no book on the subject has appeared since 1870. The various encyclopedias published contain articles on the subject, but they are necessarily brief, and not satisfying to young men who have become interested in the subject.

"Un ghid absolut esen?ial pentru omenire. ?n?elepciunea pu?in cunoscut? care se reg?se?te ?n aceast? carte poate pune cap?t suferin?ei umane pe ?ntregul Glob, salv?nd oamenii de ravagiile pe care industria cancerului continu? s? le produc? din cauza ineficien?ei depline de care d? dovad?." – Mike Adams, Director al Laboratorului ?tiin?ific CWC Labs "Ty Bollinger ofer? pacien?ilor, oamenilor de ?tiin?? ?i celor care activeaz? ?n domeniul s?n?t??ii o explica?ie excelent? privitor la motivul pentru care viziunea actual? pe care o avem despre cancer este gre?it? ?i arat? ?n acela?i timp cum poate fi prevenit, prezent?nd o gam? larg? de op?iuni de tratament, care sunt mult mai eficiente ca raport risc-beneficii cost ?n compara?ie cu protocoalele de oncologie curente. Cartea de fa?? poate fi pentru tine un ghid valoros care s? te ajute s? previi sau chiar s? stopezi aceast? boal?. Cancerul poate fi ?nvins, iar Ty ne arat? cum." – Patrick Quillin, Ph.D., R.D., C.N.S., F.A.C.N., autor al lucr?rii ?Lupt? ?mpotriva cancerului prin alimenta?ie” "?Adev?rul despre cancer? este ghidul necesar pentru prevenirea, tratamentul ?i eradicarea cancerului folosindu-ne de leacurile oferite de Dumnezeu. ?n aceast? carte revolu?ionar?, Ty Bollinger dezv?luie o ?ntreag? gam? de metode naturale de amplificare a imunit??ii ?i de energizare a trupului pentru a ?nvinge cancerul. Cite?te aceast? carte! S-ar putea s?-?i salveze via?a." – Josh Ax, D.C., autor al lucr?rii ?Eat Dirt” "Cartea lui Ty, ?Adev?rul despre cancer?, este o adev?rat? revela?ie. Pe l?ng? faptul c? ofer? pacien?ilor speran?? pentru viitor, le pune de asemenea la dispozi?ie informa?iile ?i resursele necesare pentru prevenirea ?i combaterea cancerului. Primul pas spre s?n?tate este autovindecarea, iar aceast? carte este una dintre cele mai bune c?r?i de auto-vindecare de pe pia??." – Leigh Erin Connealy, M.D.

Mér? László korábbi nagy siker? k?nyvei komoly szellemi kalandot jelent?, gondolkodásra késztet?, ugyanakkor szórakoztató olvasmánynak bizonyultak. A Mindenki másképp egyforma 1999-ben elnyerte az ??v tudományos k?nyve Németországban” díjak egyikét. Mér? László új k?nyve a szerz? r?videbb, de nem kevésbé elmélyült, elgondolkodtató és szórakoztató írásait tartalmazza. Ezek t?bbsége a Magyar Narancs Egotrip rovatában jelent meg, a k?nyv címe azonos a szerz? ottani sorozatcímével. Ebben a k?nyvben a szerz? a legt?bb írást alaposan átdolgozta. A lényeg nemigen változott, de a szigorú újságcikk-m?faj szorításából kiszabadulva némelyik írás hosszabb, némelyik r?videbb lett – ahogy a téma kívánta. ?s hogy mi ez a talányos cím? A magyarázatot keresse a k?tetben! ?Eredeti szakmám matematikus, majd a m?szaki tudományokból kandidáltam, kés?bb pszichológiából lettem habilitált doktor, nemrég pedig a gazdaságpszichológia professzorává neveztek ki. Emellett k?zel húsz éve vezetek egy játékszoftver-fejleszt? céget, amelynek egyik alapítója vagyok. Tudományos szakcikkek mellett írtam néhány k?nyvet a szélesebb olvasók?z?nség számára is, ezek t?bb idegen nyelven is megjelentek. Az utóbbi években megszerettem a tárca m?faját is – ennek termését mutatja be ez a k?nyv.” Mér? László

Latkóczy Mihály ért? tudással foglalja ?ssze a nagy világvallások k?zül a buddhizmus eredetét fejl?dését, valamint a germán mitológia eredetét, isteneit és legfontosabb alapvetéseit. Ajánljuk mindazoknak, akik klasszikus megk?zelítésben kívánják megismerni ezeket a napjainkra is hatást gyakorló vallások és mitológiák eredetét.

De unde vine universul? Ce a fost ?naintea lui? Ce ne va aduce viitorul? ?ntr-un story cosmologic care captiveaz? ?n aceea?i m?sur? ?n care l?mure?te, autorul explic? cele mai recente progrese revolu?ionare ale ?tiin?ei, ce r?stoarn? din temelii probleme filosofice esen?iale. Observa?iile experimentale uluitoare ?i noile teorii fascinante sunt descrise ?ntr-o manier? accesibil? ?i sugereaz? nu doar c? din nimic poate s? ia na?tere ceva, dar ?i c? ?ntotdeauna din nimic va lua na?tere ceva. Un fascinant antidot la g?ndirea filosofic? ?i religioas? perimat?, Universul din nimic este o contribu?ie provocatoare la controversa privind existen?a lui Dumnezeu ?i a tuturor lucrurilor care ne ?nconjoar?. ?Uita?i-l pe Iisus“, argumenteaz? Krauss, ?stelele au murit pentru ca voi s? v? pute?i na?te“. ?Suntem martorii unei revolu?ii cosmologice la fel de important? precum revolu?ia copernican?. Avem acum la dispozi?ie acest ghid substan?ial ?i captivant, o lucrare memorabil?.“ – Ian McEwan

Acumularea de produse reziduale acide ?n organism determin? ?mb?tr?nirea. Dac? reu?im s? elimin?m aceste de?euri, mai ales pe cele vechi, putem inversa procesul de ?mb?tr?nire. Putem chiar elimina simptomele bolilor dac? nu s-au produs deja daune iremediabile. Atunci c?nd ne g?ndim la ?s?n?tate“, de fapt spunem ?diet? ?i exerci?ii fizice“, care ajut? organismul s? elimine substan?ele reziduale, dar nu sunt ?ntotdeauna u?or de realizat ?i eficiente. Scopul acestei c?r?i este de a le ar?ta oamenilor cum s? ?nve?e ?i s? practice metodele simple de inversare a procesului de ?mb?tr?nire, pentru a tr?i s?n?to?i mult? vreme.

In the 17th century Sir Francis Bacon advocated the patient study of Nature for the benefit of mankind. Most of science today, in its study of medicine, genetics, electronics etc., continues that pragmatic Baconian tradition without fuss. Over the years, however, as its investigation of Nature probed ever deeper into regions far removed from common experience, science has increasingly exhibited traits more usually associated with fundamentalist religion that with dispassionate study. Articulate voices from biology preach the belief in 18th century materialism in the study of evolution; those from physics promulgate a kind of mathematical theology in its study of elementary particles and cosmology; both inveigh against heresy. But science should be beyond that sort of belief. It should not see its undoubted success in manipulating matter as justifying any sort of religious status, as offering a spiritual foundation alternative to religion. As a scientist himself, Brian Ridley is appalled by such theological trends, hence this book. It is an attempt to address these concerns, to reform science, to place science in its broad historical and philosophical context where dogmatic belief has no place, to remind science itself that it has limitations.

The equation "e;Mind = Machine"e; is false. This pocket lexicon of "e;neuromythology"e; shows why. Taking a series of key words such as calculation, language, information and memory, Professor Tallis shows how their misuse has a lured a whole generation into accepting the computational model of the mind.First of all these words were used literally in the description of the human mind. Then computer scientists applied them metaphorically to the workings of their machines. And finally, their metaphorical status forgotten, the use of the terms was called as evidence of artificial intelligence in machines and the computational nature of conscious thought.

The Decision Trap questions a dogma of our time: the assumption that genetic education empowers citizens and increases their autonomy. It argues that professional instructions about genes, genetic risks, and genetic test options convey a genetic worldview which destroys self-confidence and makes clients dependent on genetic experts and technologies. Part one of the book introduces the reader to the idea of genetic education. It clarifies the notion of the "e;gene"e; as it is commonly understood, and shows that, scientifically, the concept of genes as definable, causal agents is outdated. Part two of the book investigates the hidden curriculum of genetic education, using genetic counselling as a prime example. Genetic counselling is a professional service that aims to enable clients to make autonomous decisions about genetic test options and cope with the results.

HA RVID AZ LET, TOLDD MEG EGY BALLPSSEL!” A knyvben hét beszélgetést olvashatsz volt brtnlakókkal, igazi nehézfiúkkal, akik együttesen csaknem 100 évet tltttek a rácsok mgtt, és most az életükrl vallanak Dorkának. Megismerkedhetsz az Isten ostorával, aki 13 évesen lóktéssel kezdte, Felipével, akit fénykorában a fél magyar rendrség üldztt az M3-ason, a Profival, aki a magánzárkán hosszú éveken át csak gyúrt és olvasott, vagy rpival, aki már régen nem is élne, ha nem került volna be a sittre. Elgondolkodhatsz a pokolról, az emberlésrl és az ártatlanságról, borzadhatsz, félhetsz, nevethetsz és sírhatsz.BKY DORKA, a Feldmár Intézet igazgatója 2011 óta dolgozik a brtnben, a Feldmár Andrással kifejlesztett Mesekr program keretében. A fogvatartottak saját életük élményeibl állítanak ssze mesejátékokat, amit aztán dramatizálnak, rendeznek, megzenésítenek és eladják a gyerekeiknek.

A Magyarország f?ldtana cím? k?nyv els?sorban az egyetemi szint? áttekint? f?ldtani oktatás számára készült tank?nyvként. Az elektronikus kiadás lehet?ségeit kihasználva a k?tet a legfrissebb ismereteket szintetizálja és ad hazánk f?ldtani felépítésér?l korszer? áttekintést, amelyet haszonnal forgathatják nemcsak egyetemi hallgatók, hanem a téma iránt érdekl?d? nem szakmabeliek egyaránt. A k?tet szerz?i, Budai Tamás és Konrád Gyula aktív és nagy tapasztalattal rendelkez? terepi geológusok, akik oktatási tapasztalatokkal egyaránt rendelkezve megfelel? arányban vegyítik a terepi tapasztalatokat az oktatás igényeivel.A megértést számos ábra teszi teljessé. (a Kiadó)

Lambrecht Kálmán k?nyve ma is lebilincsel? stílusban és tudományt?rténeti korrektséggel mutatja be ezen csodálatos tudomány kialakulását és fejl?dését, tárja elénk nagy alakjainak eredményeit. Mégsem száraz adatfelsorolás ez a k?nyv, hanem izgalmas utazás, ahol a tárgy ellenére az ember, a kutató, a gyarló tudós áll a k?zéppontban. Megismerjük vívódásait, harcát az anyaggal, tévedéseit és csatáit hasonló lelk? vetélytársaikkal. Az ?svilági élet tehát igencsak evilági szellemeken keresztül jutott el oda, hogy aJurassic park megszülethetett. K?vessük ezt a t?bb évszázados fejl?dést egy magával ragadó tollú ismeretterjeszt? vezetésében. Lehet, hogy néhány k?vetkeztetése ma már nem állja meg a helyét, ám ez mit sem von le abból az értékb?l, amit stílusa és tudományt?rténeti ?sszefoglalója ma is jelent. Izgalmas olvasmány egy ma igen népszer? tudomány kezdeteir?l.