Encontre milhões de e-books, audiobooks e muito mais com um período de teste gratuito

Apenas $11.99/mês após o término do seu período de teste gratuito. Cancele a qualquer momento.

O Homem que sabia demais
O Homem que sabia demais
O Homem que sabia demais
E-book358 páginas8 horas

O Homem que sabia demais

Nota: 3.5 de 5 estrelas

3.5/5

()

Ler a amostra

Sobre este e-book

Uma biografia única sobre o homem que inventou o computador: o matemático britânico Alan Turing. Tímido, considerado excêntrico pelos que não o conheciam bem, ele mostrou aos amigos mais próximos humor e sinceridade mesmo com relação à sua homossexualidade. Gênio, concluiu o mestrado e recebeu prêmios por seu trabalho sobre a Teoria das Probabilidades. Ficou famoso pelas pesquisas no campo da inteligência artificial. No final de sua vida, foi condenado por violar leis anti-homossexuais, e em 1954, cometeu suicídio.
IdiomaPortuguês
Data de lançamento1 de jul. de 2011
ISBN9788581631257
O Homem que sabia demais

Relacionado a O Homem que sabia demais

Ebooks relacionados

Matemática para você

Visualizar mais

Artigos relacionados

Categorias relacionadas

Avaliações de O Homem que sabia demais

Nota: 3.421875104166667 de 5 estrelas
3.5/5

96 avaliações9 avaliações

O que você achou?

Toque para dar uma nota

A avaliação deve ter pelo menos 10 palavras

  • Nota: 2 de 5 estrelas
    2/5
    I didn't know much about Turing as a person, or about much of his work beyond the most famous, so this was interesting from that perspective.

    Two major complaints:

    * The author kept making connections between Turing's homosexuality and his professional work. While those connections seem reasonable later in his career, and are very interesting and thought-provoking there, the ties to his earlier work are tenuous at best, and completely unsupported by the author.

    * At the end of the book -- literally the last several pages -- the author drops the suggestion that the British government had Turing killed. Though it apparently gave the book its title, the speculation is again completely unsupported and speculative, and weakened the book.
  • Nota: 5 de 5 estrelas
    5/5
    Alan Turing was one of the most fascinating figures of 20th century history. His theoretical mathematical work that led to the invention of the computer, his key role in breaking the Nazis' Enigma code during WW II, and his acceptance of his own homosexuality at a time when most of society still considered it unnatural, all put him ahead of his time.David Leavitt is a gay writer who writes both fiction and nonfiction. He has a narrative style which is easy to read. That is a definite asset in this book, since he addresses some mathematical concepts which might not be easy for everyone to understand.Leavitt gives a great deal of attention to Turing's sexuality, and argues for two points in particular. One is not very controversial. He points out that other mathematicians who disagreed with Turing's theoretical views used an incorrect syllogism to dismiss those views: "Turing thinks that machines can think. Turing sleeps with men. Therefore, machines cannot think."The other point Leavitt brings up is more controversial. He makes the case that Turing's homosexuality made him a better mathematical thinker. Basically, the argument is that Turing knew from his own experience that being gay was perfectly natural and that the majority of society was wrong on the issue; that made him a more original thinker in general, which led to his revolutionary ideas that laid the foundation for the invention of the computer. This idea was very intriguing to me, since I frequently hear a similar idea brought up in connection to gay artists and writers, but rarely in connection to gay mathematicians or scientists.
  • Nota: 3 de 5 estrelas
    3/5
    Leavitt being a novelist I expected this to be a novel, but it is a biography. Moreover, most attention goes to Turings mathematical work instead of his life. Unfortunately the author tries to link Turings homosexuality to this work which is almost always unpausible, if not ridiculous. He saves his best one for the last sentence though! Turing seems to have had a weird sense of humour that entirely escapes Leavitt.
  • Nota: 4 de 5 estrelas
    4/5
    I'm a huge fan of Alan Turing's. A FAN. And god, if he isn't completely tragic.

    I liked this biography especially because the author sat down and worked out some of the math, and spent time explaining decoding. But really, the important part was that they didn't gloss over the fact that--shock--Turing was gay.

    Even for someone that likes to read nonfiction anyway, I was REALLY into this book. Only reason it took so long to get to it was school (since I bought this in the summer).

    Great biography. Really.

  • Nota: 1 de 5 estrelas
    1/5
    I got through almost all of the first chapter. I found the writing style very difficult to read. There are some concepts that are somewhat difficult being a book about a mathematician, but the story didn't seem to flow. The hardest part for me seemed to be a rather unusual combining of words that didn't come together for me to give an image of who was doing what or what was happening to whom. I did not finish the 4th section of the first chapter. I'll have to look for something else on Alan Turing.
  • Nota: 3 de 5 estrelas
    3/5
    British mathematician Alan Turing laid many of the foundations of computer science. He also played a significant role in winning WWII with his work on breaking German codes, only to eventually be driven to suicide by the society he had helped to save, which proved incapable of tolerating his homosexuality. It's an important, fascinating story of genius, triumph and tragedy.... and this book, alas, does not do it justice. As a biography of Turing, it just feels lacking. In fact, the earliest sections are downright annoying, as Leavitt keeps going off on tangents, generally literary ones, that have very little to do with Turing. For a while, I felt as if I were reading an English term paper by someone making a desperate attempt to impress the teacher with his reading, not to mention his ability to find sexual subtext in everything up to and including abstract mathematics. It does sort of settle down after that, and portions of it were actually pretty interesting, but I still don't feel as if I've come away from it with much more of an understanding of Turing the person than I had when I started. I think that's largely because Leavitt tells us a lot about Turing -- or rather, about his ideas about Turing -- but shows us very little. And so much of what he has to say is speculation that seldom seems to be particularly well grounded. It's rather one-note speculation, too; Leavitt never does stop with that sexual subtext thing. It is at least rather more successful as an explanation of Turing's work, especially if you're interested in the gritty mathematical details. Although, really, I think it goes into quite a bit more gritty mathematical detail than most readers are likely to want or need.In other words, this is yet another book with lots of interesting potential that turned out to be disappointing. I've been reading too many of those lately. It's made me grumpy, and inclined to rate this one lower than I otherwise might.
  • Nota: 4 de 5 estrelas
    4/5
    A very insightful novel, showing clearly how Turing thought and acted, as well as what he believed. Perhaps a bit cold in the description of personality and relationships, but clear and rather moving. I enjoyed the explanation of the concepts Turing was looking into. While I don't quite have the head for it, I would definitely re read this book in an effort to understand them better. The subject of Cryptanalysis is quite difficult, but the explanations are thorough.
  • Nota: 4 de 5 estrelas
    4/5
    Let your eyes glaze over some of the math, and enjoy a brief tour through the life of one of the 20th Century's odd mathematical giants.
  • Nota: 2 de 5 estrelas
    2/5
    Not bad when the book works with well-supported facts, but the author frequently dives into what IMHO appears to be amateurish psychoanalysis and speculation. Turing was an eccentric, complex, and brilliant person with a tragic history. Will have to seek out another biography, like Hodges' "Alan Turing: The Enigma".

Pré-visualização do livro

O Homem que sabia demais - David Leavitt

p]book_preview_excerpt.html}MǑ_ 0+6 IHB#HQSxʌN03OaO 1 'h/?/{df5]3J]G~>}vw?=T|>n/>->G1 giۻw?Mml*ľK}|7~X9v' B_W>ewQqxx|TwSWb?]w}\OcǗE*cwws0,y8>?-Op.U(uw}}0*eGilOXS/Sob1K0=_mK ->¦\\kfqF{v5&Sz2Ǘ|s1bįG]pSS5] }lHxfzww .\5YSMeu?H8 T|8nSL\㫖ZZwCM],X^UbwH!15F/+. P45>' x̬ &W6XJrK|خбrÀK衎іw-|K Vǟ x30&%q! ~݃ÊHGFq@;h!NF چOGh"Cy}*/k;.4 {Va508r"Tt_rC1ux:?޽\ǺĮ>40ּfyAZ/ e6d.i ; Z9%Up+<ila[3@Q(PX'|1|9h5捅.PjEdkCs;ٝwhw'ᖴ|Cy[}vٶږAj^nbՇokG-#BhFk6yb}aM9_c8CoÐpuU[`ջ6 |t n?RȩU1m7u1'zIQ*8*r*:0@^wp#V+iC# fݳ0naa[&MW^iw{>`n.A{|}2^;$1wK0g邺C e{0RC,XI}wR˻p-VV {+ 9͐\?܍pו/M}jxG*SOcm95wE'pOH72&Q,TmS#=ns\304^ѹY@a$f?Xf=laij7_EI}:tOT(?wa 7DKHe\-bRsmj$`Rdj$д-mcX (]B|`R (U/`k 9)T uq0 G[DJ;~-7s$l0nx3 th3D2_."0eԜ6YMꁋ cGAOD㋷r0u]+9؀!v}_߃(PD'N"qq3}'n8uX*蓩CGIɰ~Wژ %؜' .Ÿ[qhbxI P{ys쿨nÑtt8~5Y{D{:MYv_Bǟ*S )q G)߶P `"L|7Szs{idn4BgP1gUKAH {9y2]&M {X8$# vyEQͨ1">Zl5hp't6">+i(e4=#nS 9lpgCr,"]C ³EPɢi}PHDZ:@?yҗB8Wi3)3o9Ixa" qSgqaQ j1m] qyKp|Oe^ t.+OC/2$ K`+ǶUR_YƊ#2uɈT sZDLYhLJϮxP HL}u_<˰8G+0 "qlj"UWTQxF $ҕqIE 鎦絒EYiXN/ɢIC=J.7Хm;ieJC%=O4P؈N1j.]v⯊ɦC(|<ډēFzH`zwnJM6+ Bʰo{C<W^6HMA\1ExΟ)]L%UEFP>} 5G#=R0tpXr\wa8 qV Ԍ.u<ag9Vo3䒙ڼ\n-sڇ{քܞ7kwoaHpΑDy'}Yѷv=d0AÜQϿ+ Yj+nwT.Ɛdu\7hr+⾿2"Þ6ŶNT>>E.T7v#cy 3jU#BF='= 7uw!29ifUeWcMC]Oʛ"jײ6a'cɄ{a JeuNl M0,UlDAK1y1_W -]O@!5c&kIwhse!g"!WGղsD-5c՚Jcj)|sVoZgbe" W[jv|Os|c8AȘ!T9ԣ`咩7+M9}AmȮFV) Ԥ% 1cptt:%+!=Jd/e~a.$uYUF&qz\_SpgLuQ_:tx rdp\BOd{(r;~zUGD^ *ĵ9 Euq|`5DrG+ދGxLq"W>%0r]W_Dw1 r13P @{H `CA4YHC*:E[uO*_٧-9_uImiH.IIk?AV֣?0~53 m`vdpj_b3Ҋ3Ӓ)JOtz*p&A Ү'Ҁ! Pa4nOLnbqk+%+52 mM^ͻ>>]Tb[zX <סR.4Fedp2+AL4`Ȟ#WuWVo<X g;PfeƼCÓ;.@z t,]w]MN:YDX0:up R~;q7dtj.` f̏1ײ2 Ym4\] x!R^CԥѕZU24%>P6ROjj٩_` ǧ_, KMsGOMOfgZGV ZE%.+6UD`ȌU]O-w臻b2 3-a}$~|v2|W,-z\r5ƚ "?3_mKh=3hpӝӑ[2A)[i3xt~xgAX}"T#{ŎtN063˴uY9qT$L>*Yl9A{Z"mC 9h3IÛ޸iΠ`F{Ҿ]FL8Q SX1A&qtPXZ &T&ԑ6GZ %FWM7Y@B}[6OAS〖 )>zVf&Cmli5p55XIgşZ&A_V}Đ.CM@)9zn {Fh\e*[cs{|VFXD\*y PI\aW*b~}n=,0=z3d?M-SO>+Td/1_[5xG\vc%T )k!,ï{\NPkt$؃E]h$"L+:r#C;[JEHdJ[97J+e0bi>CQZ[cqI8&KGpiy+vs,\(ȴw)A\d-rVhVdDҝ>Æ©=I^ZV_rZh#;5W-Bzv$fb(>w/uLs;;TՖ*"17zJaf:֝O?;}͒x7 㴡sTt2s8f?۫)|&X݇zS{m ~Y,A·/]aGBUcL&҈L' `H9u:WPc\VsZ ]kbPQҬi(W(CZzt/N,yXRe2VFђ\I^DI=[iE?L^RvUm'.eJ HkM+<'glɳ ]%?YKܛBڛ NbME^)*=5 `UU֞l"\0C_Dc&hV1dVvЊU݆L:n{T1w/͆X[fn_gm )ok3(MZ=޻+g3IվvZˬ[2 1zliW+(D,Us-;#v썱OU]Pcw 8X$Kw+aC7Hv2mkhY谎V#y"#[B1}QCj.a1iOn][0^W#BPJ܀C.SJn4uPki- q{4ú)>Gv+ҳ1i]-\54|i7eLWB/ Eupcb):/JX5eK܋uX+R2@u࡮ꕏn ;hH5;֢"<=)&6?IMVa]\SK؛ LWMmT-| CØvz4u, M4'H O[LU]`r奛p\mE,@Tޥ`e4-܋R4pvon\5y<= ۜj?%=M뗅ܨgŭ7dvZDh^mFJa͈Gxs`޺4t3@ M>>e 'Zʙv0O*6LC#EjF䡷Uy|:I5kKﭱ-z7E-dfWIv`sDm.I9D}U[|?O^a6Rub9J˦r1uBFY[id.љiBu^!l\p 2Vn]u\|(C繉pwAJ41f5OPY|C:k9Nq #msG B,Z1>YL=S*Eɝ,g'4#-$^Vap=B2g4:1]\v_ZKv;n5YnV)koF Phfl&o欿m3\BX 1`S%JgQ{ɯSB+ʭM䝵Iwnq.K,D۰ $c`2z ^&.g'V인VZ=k0n=dcMg9X7mݼF)&zY Ym#7_#MM'jR{v2'Sĸgy4:^\lx8g|x+O0/VWxa]Eib퓷 >̲Ln9#.c.m9d 443_(>-~SǦ (\WR%0W,seRWǷnyC1-Fy[j휞IjTK,C˺]t\(`lozCPx\GٖevOCZ:M7x'{VA=D,KwVkM&Gt6t F8g[\*2pmI>I!_ ˈ٩NN^I kkXb ȻkxքqC뫶Üz2M ܹK.[itOsw YRYPF `a1JY{wKy ;37-lSPk'n@6\U5 rn^e^N\fyZܬm.Oܠe6 Ɯ;Bfg _?#Xl3\%^, 1c&?Å .yI'khvWa'AUH=JOc0?XfCuo.Rgc}o0Ӯbk<<6|…Y_qNM=damֺt;R  >xgW#rnl^L܈'Rs7! 6 r A)hsc.azv|XXMjf& Ga# O5lg/RlN]*bⴃSe{p݉\g:aŁ9ݍV-FV @Vm'0& 4,' 8m^_S*{|1̳ft+tM!ƻwx eV7r#S5x !EnUBlh 43਽o RKIJl^r.Gf{ƕ W4yÊ<nvܯIݓyUޠ|v1r2HO ]pҧļ+ O+c9j?7 ܱsPorljj=Bgs9t(ڻVwrV% 2N\m9Y5I-Q9V><_,͂1gRRQXofNx3!GE d=_Rko%{$/7ZAC|ԉ|aj)sz`7ꜶMwt8`Smd;|yY4OɺpFY=P&vjJnNoJ2M)GyXƚq:ZٌdrJ^Lǰc7MiYu7{Y69UNi "ۀ0RBG7,d  GxRRODlRP4kSV\M>åyOeoT3!9r=1[Bf6٘{I0˜.jcqAT {EOMf&aoxZy̋/E{HL1٪Fp_kLƺV#--YMb׭saz"{1 Zu|dF;p n:6)2B89r1a'ޑjY61P, h:fv}l.Fō[ %A捕yX*itduy[|^Džfԙ!+mw>yA06fb8Hv*$I0og̭R .[Od*~# I[)71i޽>AuZa>@ƜM5wk8v` U)r +Cq.+O;̤?I꨻P6jd$4[! Yj'%kD ii;S3vJLmP$Ʋr1Rݜs;2z!(/6O矊PL:;"*' +5ziAU8ާpHwJ'PԶT}yh-ԓOw}FL\tŎu+xf*OMfyyTq 4Ȣ>{EW;`M;Riamr7lbz~]w!W=r}Zg fZ2a=|10z@:i {}x>WGk b?xTSPb*mnsK` {F=/"\F3R_WҋIi -4;amQNY5 Szg=v7]:魝-C^m}Qg_x#m-3Yg6~j)~Opv:1wpW>7\=ujUMS!f[ӗ ºexyduˤW -wq4X"/={V8 Y#dG?D_A+mr(i9#m 77@&!ݘ'`@)֐!s2h ڈ͵.ڬ~Iܠ&L:A !SFdϝ7a. $ji7L )mЙ=:=>`sj[j ̢l< Y6Nث~Cyc h<& RZ$3&K6"q=AR.e7cPYQ1{kt?Dk= p] *誹h/2μNАys],1]<U}Ab|uro^TU3~Fչ|)|x՛M3`r\~jiWۆ(ixfTتgW_Zܽ̕~?kX,1tj
Está gostando da amostra?
Página 1 de 1