The Americans: "American Problems from the Point of View of a Psychologist"
¥28.61
"The Americans" by Hugo Munsterberg stands alongside Alexis de Tocqueville's American Democracy as one of the great works on the New World written by a scholar deeply familiar with the Old World. When originally published, it gave the German public a sense of American life, and was described as "a book which deals in a detailed way with the political, economic, intellectual, and social aspects of American culture." Munsterberg, a world-renowned psychologist at the turn of the twentieth century, noted that "its purpose is to interpret systematically the democratic ideals of America."??The primary aim of The Americans is to study the people and America's inner tendencies. It offers a "philosophy of Americanism," the ideology of a people writ whole. Munsterberg's sense of the "spirit" of a people, rather than facts about the people, is revealed in his four cardinal chapters: Self-Direction, Self-Realization, Self-Perfection, and Self-Assertion. While he covers the economic premises of the free market and the politics of party affairs, he considers these the least important. Instead it is the lasting forces and tendencies of American life, rather than problems of the day, that occupy the author. ??This focus was shared by German readers, for whom the book was conceived, and for those in the United States who read the book in English.The dynamic of strong basic tendencies of democratic forces and lesser, but significant, aristocratic tendencies underwrites the strains and tensions in American society. It also defines the special nature of a book, written more than one hundred years ago, that retains its lively sense of purpose and deep insight into American life. ??One could well say that this book is required reading in this day and age for Americans and Europeans alike:??"This is a neglected masterpiece.."
Pharmacology: An Introduction: A Tutorial Study Guide
¥32.62
Pharmacology: An Introduction: A Tutorial Study Guide
Cytoplasmic Release of Neurotransmitters: A Tutorial Study Guide
¥32.62
Cytoplasmic Release of Neurotransmitters: A Tutorial Study Guide
Neuropsychopharmacology: An Introduction: A Tutorial Study Guide
¥32.62
Neuropsychopharmacology: An Introduction: A Tutorial Study Guide
Slavery
¥27.88
The first question to be proposed by a rational being is, not what is profitable, but what is Right. Duty must be primary, prominent, most conspicuous, among the objects of human thought and pursuit. If we cast it down from its supremacy, if we inquire first for our interests and then for our duties, we shall certainly err. We can never see the Right clearly and fully, but by making it our first concern. No judgment can be just or wise, but that which is built on the conviction of the paramount worth and importance of Duty. This is the fundamental truth, the supreme law of reason; and the mind, which does not start from this in its inquiries into human affairs, is doomed to great, perhaps fatal error. The Right is the supreme good, and includes all oth-er goods. In seeking and adhering to it, we secure our true and only happiness. All prosperity, not founded on it, is built on sand. If human affairs are controlled, as we believe, by Almighty Rectitude and Impartial Goodness, then to hope for happiness from wrong do-ing is as insane as to seek health and prosperity by rebelling against the laws of nature, by sowing our seed on the ocean, or making poison our common food. There is but one unfailing good; and that is, fidelity to the Everlasting Law written on the heart, and rewritten and republished in God's Word. Slavery ought to be discussed. We ought to think, feel, speak, and write about it. But whatever we do in regard to it should be done with a deep feeling of re-sponsibility, and so done as not to put in jeopardy the peace of the slave-holding States. On this point public opinion has not been and cannot be too strongly pro-nounced. Slavery, indeed, from its very nature, must be a ground of alarm wherever it exists. Slavery and security can by no device be joined together. But we may not, must not, by rashness and passion increase the peril. To instigate the slave to insurrection is a crime for which no rebuke and no punishment can be too severe. This would be to involve slave and master in common ruin. It is not enough to say, that the Constitution is violated by any action endangering the slave-holding portion of our country. A higher law than the Constitution forbids this unholy interference. Were our national union dissolved, we ought to reprobate, as sternly as we now do, the slightest manifestation of a disposition to stir up a servile war. Still more, were the free and the slave-holding States not only separated, but engaged in the fiercest hostilities, the former would deserve the abhorrence of the world, and the indignation of Heaven, were they to resort to insurrection and massacre as means of victory. Better were it for us to bare our own breasts to the knife of the slave, than to arm him with it against his master. ? ABOUT AUTHOR William Ellery Channing (1780 – 1842) was the foremost Unitarian preacher in the United States in the early nineteenth century and along with Andrews Norton, (1786-1853), one of Unitarianism's leading theologians. He was known for his articulate and impassioned sermons and public speeches, and as a prominent thinker in the liberal theology of the day. Channing's religion and thought were among the chief influences on the New England Transcendentalists, though he never countenanced their views, which he saw as extreme. The beliefs he espoused, especially within his "Baltimore Sermon" of May 5, 1819, at the ordination of a future famous theologian and educator in his own right, Jared Sparks, (1789-1866), as the first minister (1819-1823) of the newly organized (1817) "First Independent Church of Baltimore" (later the "First Unitarian Church of Baltimore (Unitarian and Universalist)"). Here he espoused his principles and tenets of the developing philosophy and theology of "Unitarianism" resulted in the organization later in 1825 of the first Unitarian denomination in America (American Unitarian Association) and the later developments and mergers between Unitarians and Universalists resulting finally in the Unitarian Universalist Association of America in 1961. In later years Channing addressed the topic of slavery, although he was never an ardent abolitionist. Channing wrote a book in 1835, entitled, "SLAVERY" James Munroe and Company, publisher. Channing, however, has been described as a "romantic racist" in "Black Abolitionism: A Quest for Human Dignity" by Beverly Eileen Mitchell (133–38). He held a common American belief about the inferiority of African people and slaves and held a belief that once freed, Africans would need overseers. The overseers (largely former slave masters) were necessary because the slaves would lapse into laziness. Furthermore, he did not join the abolitionist movement because he did not agree with their way of conducting themselves, and he felt that voluntary associations limited a person's autonomy. Therefore, he often chose to remain separate from organizations and reform movements. This middle position characterized his attitude about
Smokiana
¥27.88
Although Smoking is generally associated with Tobacco only, yet there are other plants whose leaves are used for similar purposes & these will be referred to as we come to the different means of using them. Our first Woodcut of Tobacco is from STELLA—ROMA 1669. a work of great value as giving Pipes & the Hookah of Persia as well as Plants but we will start with some of the growths now most generally known of the “NICOTIANA” Family which is very widely spread over the face of the Earth & has of late made great strides in Borneo & Sumatra. We are greatly indebted to old German woodcuts for solid infor-mation anent details of Habits & customs of the 16th. Century which our own people have not handed down to us, take for instance “Hans Sachs.” Book of Trades. Had smoking been in vogue in his day he would have given it—or rather Jost Ammon would have illustrated it so here in 1616 A.D. we find a Sturdy German, blowing a tremendous cloud. It is taken from an old work now in Frankfurt—viz
Children’s Party Games (Collins Gem)
¥38.36
Ever faced a crowd of fifteen 5-year olds and quaked? Well, here is your chance to bring order and calm to the party proceedings. Just consult your Gem and you can prepare for those half forgotten games such as Musical Bumps, Simon Says and Blind Man’s Buff. Collins Gem Children’s Party Games provides clear advice and instructions on the most popular family and party games. It is an invaluable guide for organizing children’s and family parties, for wet weekends, Christmas family holidays as well as train or car journeys. The clear instructions also include: Number and age of participants How long the game lasts What equipment is required How to prepare for the game For hours of family games and entertainment look no further than this Gem.
A Book of Britain: The Lore, Landscape and Heritage of a Treasured Countryside
¥368.46
In this remarkable, landmark publication, countryman Sir Johnny Scott evokes all that is romantic about the British countryside, its people, customs and traditions. Over its 600 gloriously illustrated pages, Johnny draws on his wisdom and knowledge to reveal a forgotten culture, and encourages us all to rediscover a beautiful Britain. “I always think of nightingales when spring arrives in the south of England and winter is still reluctant to release its grip north of the Border. I heard my first as a very small child while staying with my grandparents on the Ashdown Forest. My sister woke me one night with an excited whisper, 'A nightingale! You must listen to the nightingale sing!' Together we sat on the window seat, gazing across moonlit lawns towards the forest. At that moment, as if nature had not already done enough to impress, the most wonderful sound I had ever heard filled the silence, as the nightingale started to sing. A rapid succession of varied, unconstructed notes, some harsh, some liquid, sung with great exuberance and vigour, changed to a long, slow, pleading song that rose in volume to a sudden piteous crescendo, before reverting to a tune of jollity and mirth. In my mind's eye I saw it erect and glowing, somewhere in the darkness among the oak trees, but no amount of searching that morning produced a single golden feather.” Throughout the pages of A Book of Britain, Johnny Scott celebrates the landscape and people and reveals why, through centuries of careful management, conservation and cultivation, Britain looks as it does. We discover Royal forests and protected oaks; learn animal behaviour and how best to observe wildlife whether on the moors or in your garden; we learn about traditional country sports from familiar hobbies such as fishing and shooting to lesser-known activities such as “swan upping”. Johnny teaches us to look to animals and nature to predict the weather, and reveals many customs and traditions that are in danger of being lost. This book is a gift in every sense – not only in its sheer scope and presence, but in the rich legacy it will leave behind for future generations.
Truth Machine
¥229.55
DNA profiling-commonly known as DNA fingerprinting-is often heralded as unassailable criminal evidence, a veritable "e;truth machine"e; that can overturn convictions based on eyewitness testimony, confessions, and other forms of forensic evidence. But DNA evidence is far from infallible. Truth Machine traces the controversial history of DNA fingerprinting by looking at court cases in the United States and United Kingdom beginning in the mid-1980s, when the practice was invented, and continuing until the present. Ultimately, Truth Machine presents compelling evidence of the obstacles and opportunities at the intersection of science, technology, sociology, and law.
Why Us?: How Science Rediscovered the Mystery of Ourselves (Text Only)
¥73.58
The imperative to 'know thyself' is both fundamental and profoundly elusive – for how can we ever truly comprehend the drama and complexity of the human experience? In ‘Why Us?’ James Le Fanu offers a fascinating exploration of the power and limits of science to penetrate the deep mysteries of our existence, challenging the certainty that has persisted since Charles Darwin's Origin of Species that we are no more than the fortuitous consequence of a materialist evolutionary process. That challenge arises, unexpectedly, from the two major projects that promised to provide definitive proof for this most influential of scientific theories. The first is the astonishing achievement of the Human Genome Project, which, it was anticipated, would identify the genetic basis of those characteristics that distinguish humans from their primate cousins. The second is the phenomenal advance in brain imaging that now permits neuroscientists to observe the brain 'in action' and thus account for the remarkable properties of the human mind. But that is not how it has turned out. It is simply not possible to get from the monotonous sequence of genes along the Double Helix to the near infinite diversity of the living world, nor to translate the electrical firing of the brain into the creativity of the human mind. This is not a matter of not knowing all the facts. Rather, science has inadvertently discovered that its theories are insufficient to conjure the wonder of the human experience from the bare bones of our genes and brains. We stand on the brink of a tectonic shift in our understanding of ourselves that will witness the rediscovery of the central premise of Western philosophy that there is 'more than we can know'. Lucid, compelling and utterly engaging, ‘Why Us?’ offers a convincing and provocative vision of the new science of being human.
Problema evreiasc?
¥54.10
Aceast? carte con?ine informa?ii utile privind refacerea s?n?t??ii cu produse naturale ?i prin metode naturale, oferind o vedere de ansamblufundamental? pentru persoanele f?r? preg?tire medical? ?i o colec?ie de tehnici cu sfaturi utile ?n procesul de vindecare. ?n plus, aceast? lucrare ?i provoac? pe profesioni?tii din domeniul medical s? reinvestigheze impar?ial studiile din prezent ?i din trecut ?n acest domeniu, f?r? prejudec??i. Ve?i g?si date despre prevenirea ?i tratamentul: cancerului, anemiilor, artritei, SIDA, diabetului zaharat, cefaleei, bolii Alzheimer,hipertensiunii arteriale, obezit??ii, menopauzei, osteoporozei etc.
Manager contra curentului. Ce fac marii manageri altfel dec?t ceilal?i
¥73.49
Acest suport de curs este destinat elevilor ?colilor postliceale sanitare c?t ?i personalului mediu din sistemul sanitar., respect?nd programa de preg?tire. Este structurat ?n ?ase capitole: (1) Simptomatologia afec?iunilor ortopedico-traumatice; (2). Afec?iuni congenitale; (3) Infec?ii osoase; (4).Osteoporoza; (5) Tumori osoase; (6) Traumatologie.Pentru a detecta corect problemele reale ?i a decide care este cea mai bun? metod? de ?ngrijire, personalul medical cu preg?tire medie trebuie s? ?tie s? abordeze principalele afec?iuni ortopedico-traumatice. Cei care ??i ?nsu?esc principiile ?i normele expuse ?n acest volum vor fi capabili s? identifice ?i s? ?ncadreze corect semnele ?i simptomele, vor cunoa?te principalele investiga?ii recomandate, precum ?i m?surile de prevenire ?i tratamentul necesar pentru recuperarea bolnavilor care sufer? de aceste afec?iuni.
Simple and Natural Herbal Living - An Earth Lodge Guide to Holistic Herbs for He
¥40.79
Herbal living is simple. It's natural. In this illustrated guide, you'll come to understand that an herbal life is a reward in itself. You will learn to appreciate the power held in one tiny leaf. You will be inspired to walk hand in hand with nature, accepting her gifts and respecting her in return. And you'll even learn to appreciate the immense potential you hold inside yourself. Detailing the medicinal uses for over 60 herbs and 23 essential oils, Herbal Living contains many useful recipes for health and home. Herbs for the kitchen, facial products, healing salves and tinctures are all covered in detail."Maya Cointreau will take you on a journey towards a new way of living life. She makes it easy to relate to the material and her words will leave you feeling confident and self-empowered." Kathy Lalonde, RPP
Healing Secrets of Avicenna: It Is Compiled from Avicenna’s Work
¥46.52
Ibn Sīnā (Avicenna) was born in 980 in Buhara, and died in 1037 in Hamadan, Persia (now Iran). He is a physician, physicist, writer, philosopher and scientist. He was known in the West as the founder of modern science in the medieval ages, the leader of physicians and dubbed as the “Doctors’ Doctor”. His fame rests on his book, Al-Qānūn fī al-?ibb (The Canon of Medicine) which was regarded as the principal medical work in the field of medicine for seven centuries and this book remained as a reference source for medical studies in the universities of Europe until the end of seventeenth century. ????????????? If now we examine his work “The Canon of Medicine”, we find that he has an extensive explanation of anatomy and in his work in which he gives a clear definition of some organs which can be visualised with today’s some special imaging devices, today, there are still many unresolved and unstudied methods. Ibn Sina’s curative recipes were used in the European medicine for many centuries even after his death. The famous astronomer Copernicus, also a nephrologist, has healed using the recipes of Ibn Sina who has lived before his birth over 500 year ago. ????????????? When i had first read the second volume of Ibn Sina’s study, “The Canon of Medicine”, telling about which plant is recuperative and the applications of these plants internally and externally, i came up with the idea of bringing this study down to a simpler level of understanding that everybody can comprehend, rather than letting it be understood just by the specialists. But I could bring this out after 1 year of work. Staying faithful to the context of the book, submitting this book on behalf of the community was my biggest wish. In order to bring?simplicity, I worked meticulously to compile an index of plant names together with their latinized forms which are sorted in alphabetical order and also an alphabetical index of diseases. I got opinion and also support from doctors and experts in Phytotherapists. I left the explanations as they are since i didn’t want to make any extra additions to the book. If a detailed survey of the plants is carried out, there is more detailed information in the literature about how they should be used. We can already see that the modern medicine finds out solutions to many diseases but nevertheless, there are still dozens of diseases which can not be healed. For instance, in this work, Ibn Sina explains the reason of why he has named a plant as “Swallow-wort” as follows: Sometimes the newborn nestlings of a swallow suffer from blindness. It was observed that the mother squeezes the extract of this plant onto their babies’eyelids and then their eyes were healed. All the same, if this kind of plants are examined throughly, it is quite possible to observe the same effect on humans as well. In this case, i call upon the expert scientist, to carry out these researches. At the end of this book, i added also some basic methods of practical home care medicine which are used in traditional medicine. I believe that these will be found useful and practical. I hope that this will be useful for humanity... ????????????? ????????????? ????????????? ????????????? ????????????? ????????????? ????????????? ????????????? ????????????? Caner OZOGUL ????????????? ????????????? ????????????? ????????????? ????????????? ????????????? ????????????? ????????????? ????????????? ??? (Herbalist)
Bütünsel Bak??la Canl?l?k-I: "Madde ve Enerji, Beden ve Ruh ?li?kisi"
¥0.01
CANLILIK Nedir? Bilin? nedir? Zamanla ba?lant?l? olduklar?n? g?rebilir miyiz? Duygular?n ne oldu?unu s?yleyebilir miyiz? Beden ve Ruh ayr? m? yan?lg? m?d?r? Beden ve ruh, madde ve enerji gibi midir? Einstein'?n ünlü E=M.C2 formülüyle, madde ve enerjinin temelde ayn? ?eyler oldu?unu ve birbirlerine d?nü?ebildiklerini, maddenin yo?unla?m?? uzay-enerji alan? oldu?unu g?stermi?tir. Madde ile enerji aras?ndaki benzerlik ne i?e, beden ile ruh aras?ndaki benzerlikte ?yle midir? Beden madde ise Ruh enerji midir? Bilin?, duyulardan kayna??n? alan daha üst bir duyu mudur? Hücreler dokular?, dokular organlar?, organlar sistemleri olu?turur dü?üncesinde bilincimizi de g?rebilir miyiz? Haf?zam?zdaki bilgilere istedi?imiz her an neden ula?amay?z? Daha da ?nemlisi, tüm bilincimizi zaman?n ?ok k?sa an?na s??d?rabilir miyiz? Neden?
Prietenul andaluz
¥90.84
De ce unii oameni au o via?? fericit? ?i plin? de succes, ?n timp ce al?ii se confrunt? ?n mod repetat cu e?ecuri ?i triste?e? De ce unii ??i g?sesc perechea potrivit?, iar al?ii nu au parte dec?t de rela?ii care se sf?r?esc cu o ruptur?? Ce ?i face pe unii s? aib? cariere ?nfloritoare, ?n timp ce al?ii sunt prin?i ca ?ntr-o capcan? ?n joburi pe care le detest?? ?i, mai ales, pot ghinioni?tii s? fac? ceva pentru a-?i spori norocul ?i a-?i ?mbun?t??i via?a?Autorul a c?utat r?spunsul la aceste ?ntreb?ri prin intermediul unor cercet?ri care s au derulat pe o perioad? de mai mul?i ani ?i au cuprins interviuri ?i experimente cu sute de persoane extrem de norocoase sau ghinioniste. Rezultatele ob?inute, prezentate ?n aceast? carte, indic? un mod complet nou de a vedea norocul ?i rolul esen?ial pe care ?l joac? acesta ?n vie?ile noastre. Oamenii nu se nasc noroco?i. F?r? s? ??i dea seama, oamenii noroco?i folosesc patru principii de baz? pentru a aduce norocul ?n via?a lor. Dac? ?n?elege?i principiile, atunci ve?i ?n?elege ?i cum ac?ioneaz? norocul.
Oath and Law
¥40.79
Medicine is of all the Arts the most noble; but, not withstanding, owing to the ignorance of those who practice it, and of those who, inconsiderately, form a judgment of them, it is at present far behind all the other arts. Their mistake appears to me to arise principally from this, that in the cities there is no punishment connected with the practice of medicine (and with it alone) except disgrace, and that does not hurt those who are familiar with it. Such persons are like the figures which are introduced in tragedies, for as they have the shape, and dress, and personal appearance of an actor, but are not actors, so also physicians are many in title but very few in reality.
Pisica din vis. Povestiri pentru copiii de toate v?rstele
¥40.79
Av?nd ?n vedere c? o serie de concepte bazate pe teoria for?elor electrostatice (leg?turile chimice, cinetic? molecular?, mi?carea braunian? etc.) prezint? grave contradic?ii privind explicarea acestor fenomene ?i formularea unor r?spunsuri coerente la nivelul particulelor atomice, se impune o abordare nou? ?i o analiz? dintr-o alt? perspectiv? a fenomenelor amintite.Este edificator ?n acest sens s? lu?m cazul fluidelor care se pot disocia ?n molecule ?i chiar ?n atomi (chimie general?, C.D.Neni?escu) prin inc?lzire.Rezult? c? pe m?sur? ce cre?te temperatura (ex.a lichidelor) agita?ia termic? cresc?nd, deci cre?te ?i viteza de mi?care a particulelor atomice, scad for?ele de coeziune ?ntre aceste particule . La fel se ?nt?mpl? lucrurile cu metalele . La ?nc?lzirea peste o anumit? temperatur? metalele se ?nmoaie apoi se topesc deci oadat? cu cre?terea temperaturii (deci a vitezei de mi?care a particulelor) scad ca valoare for?ele de coeziune dintre moleculele substan?elor.A?adar avem o corela?ie direct? ?ntre viteza de mi?care a particulelor atomice ?i for?ele de coeziune dintre acestea. Acest lucru ne duce cu g?ndul la faptul c? aceste for?e ar putea fi de natur? electrodinamic?, fiind vorba numai ?i numai de influen?a vitezei de mi?care a particulelor ?i ?n nici un caz de for?e electrostatice care nu depind de viteza de mi?care a particulelor atomice (ci numai de m?rimea sarcinii ?i de distan?a dintre ele conform legii lui Couloumb).[...]
Ultima scapare
¥90.84
O colec?ie de peste patruzeci dintre eseurile preferate ale lui Tyson, Moartea ?ntr-o gaur? neagr? abordeaz? nenum?rate subiecte, de la firavele eforturi ale industriei filmului de a crea cerul ?nstelat, p?n? la ce-ar ?nsemna s? te afli ?n interiorul unei g?uri negre.?Cel mai cunoscut astrofizician al Americii, Tyson este un profesor ?nn?scut, care ?tie s? explice pe ?n?elesul tuturor teoriile complicate ale astrofizicii ?i ?n acela?i timp s? ne transmit? fascina?ia pe care o are fa?? de univers.?Este absolut obligatoriu s? g?sim oameni de ?tiin?? care s? ne poat? explica nu doar ceea ce descoperim, ci ?i modul ?n care facem acele descoperiri. Neil deGrasse Tyson este unul dintre ei." - Boston Sunday Globe?
Bucure?ti, mon amour
¥61.83
Semiologia este piatra fundamental? a diagnosticului. Informa?iile anamnestice orienteaz?, datele clinice fundamenteaz?, iar datele de laborator confirm? diagnosticul.Cursul de semiologie medical? ??i propune s? ?narmeze asistentul medical cu metode ?i tehnici de examinare a pacientului ?i, ?n acela?i timp, cu mijloace ?i c?i de a descoperi semnele ?i simptomele ?i a le interpreta ?n mod corespunz?tor cu scopul de a aprecia corect ?i rapid diagnosticul clinic pentru a interveni eficient ?n sprijinul redob?ndirii/amelior?rii s?n?t??ii pacientului. Este structurat ?n trei capitole: (1) Utilizarea terminologiei medicale ?n efectuarea anamnezei; (2) Modific?rile observate de asistenta medical? la inspec?ia general? ?i (3) Manifest?ri cauzate de diferite afec?iuni. La sf?r?it, exist? o sec?iune de teste pentru evaluarea cuno?tin?elor.Datorit? nevoii permanente de cunoa?tere ?i perfec?ionare a asistentului medical, ca ?i a tuturor profesioni?tilor din domeniul s?n?t??ii, aceast? carte este extrem de util? elevilor ?colilor sanitare postliceale.
Scandaloasa poveste a lui Frankie Landau-Banks
¥65.32
Ar putea exista alte universuri? O c?l?torie de neuitat ?n lumea g?urilor negre ?i a ma?inilor timpului, a universurilor alternative ?i a spa?iului multidimensional, Lumi paralele ne ofer? un portret conving?tor al revolu?iei care a cuprins lumea cosmologiei.Ideea de universuri paralele ?i teoria corzilor, care le poate explica existen?a, au fost c?ndva privite cu suspiciune de oamenii de ?tiin??, fiind v?zute ca o provincie a misticilor, ?arlatanilor ?i excentricilor.Ast?zi, fizicienii teoreticieni sus?in ?ntr-o propor?ie cov?r?itoare teoria corzilor ?i ultima ei itera?ie, Teoria M. Aceasta, dac? se va dovedi corect?, va reconcilia cele patru for?e ale universului ?ntr o manier? simpl? ?i elegant?, r?spunz?nd totodat? la ?ntrebarea:?Ce s a ?nt?mplat ?nainte de Big Bang?“ ?Folosind cu abilitate analogia ?i umorul, Kaku prezint? varia?iunile la tema universurilor paralele, venind din mecanica cuantic?, cosmologie ?i Teoria M.“ -- Brian Green, autorul c?r?ii The Elegant Universe

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