Ett utsökt universum - Supersträngar, dolda dimensioner och sökandet efter den slutgiltiga teorin
When I read this book, I remember thinking it was pretty interesting, but I am surprised how few insights I have retained... to be honest, hardly any. Smolin's The Trouble with Physics, which I read much more recently, suggests that string theory is in big trouble, and right now I am more tempted to side with Smolin.
There's this old Nasrudin story, where he's somehow ended up as judge in a court case. The D.A. really makes a good case, and Nasrudin can't r...more
Do I understand string theory? Not sure.
Do I understand M theory? A little bit but don't ask for any algebraic reasoning.
Do I know exactly what a Calabi-Yau is? Not really but I think they look a little like the hair balls from my cat.
This is the second time I've equated quantum physics and all its detours to a hair-ball. That's because I can study a hair ball and still have no idea what it is for and why they exist. String Theory and the elusive TOE is in the same category. I could go on my en...more
This book presents the latest breakdown of empirical existance with string theory- it's really well written and it sugguest how the fundimentals of all existing things come together in a very similar way as our understanding of music (little vibrations). I love this subject because, where the goal of civilization is to appreciate life in some form of organized chaos, some well spoken theorists have the ability to put things into perspective in such a way that the world seems to teem with possibi...more
My opinion of this book is similar but not equal to Rob's (though I liked his review), because I didn't think the first third of the book gave me a fairly good understanding of the Einstein's relativity concepts at all. For instance, the rubber membrane - bowling ball analogy was...more
How glad I am to have read it. As it turns out, my idea of string theory was erroneous, as was my rudimentary grasp of Einstein's theory...more
A through, mostly accessible, and always biased intro to string theory. Some concepts are merely described without any attempt at proof or background, but perhaps this is inevitably in a book trying to introduce laymen to...more
The approach continues as the author jumps to explaining a far more complex super-string theory. And here, the simplistic explanations make the theory look highly speculative, fantastic and without much ground/proof. This is certainly...more
فيزياء كلاسيكة ، فيزياء حديثة .
الفيزياء الكلاسيكة تفسر الكون على اساس معادلات نيوتن وهي صادقة لحد كبير في التنبوءات ومازالت تستعمل وتدرس في المدارس لحد الآن.
الحديثة تنقسم الى عدة اقسام : نظرية النسبية العامة والخاصة . نظرية الكم ، نظرية الاوتار الفائقة التي ادعت انها جمعت كل النظريات السابقة ..هناك ايضا سيناريوهات اخرى منها نظرية –ام و عدة اقتراحات اخرى تسمى بنظريات كل شيء ..
ان رأيت ان الامر صعب –كما ظهر لي من قبل – فاقرا كتاب (الكون الانيق ) لبرايان غرين ويكفي...more
His writing style is brilliant, so the average person can understand most of the concepts, and for the more advanced reader, he has mathematical notes. There are certain the...more
But I would say explaining physics is the secondary aim of this book, the first aim is the perpetuation of the Einstein myth. On the first page of the elegant universe the name Einstein is mentioned 5 times and so it continues, in f...more
"[Greene] develops one fresh new insight after another...In the great tradition of physicists writing for the masses, The Elegant Universe sets a standard that will be hard to beat." --George Johnson, The New York Times Book Review
In a rare blend of scientific insight and writing as elegant as the theories it explains, Brian Greene, one of the world's leading string theorists, peels away the layers of mystery surrounding string theory to reveal a universe that consists of 11 dimensions where t
The author explains well, sometimes too well the intricacies of string theory. the "explains-too-well" is the part which bogs down the book. Sometimes he starts from very basic concepts and draws some good analogies to explain them, only that analogies are not required...more
I have to make myself clear on this book. It is more of a text than one for the general reader – even one well versed in atomic physics. The world it explores is vastly different from that I studied in my course on nuclear physics in college in the early 1960s. At that time, we learned about quarks, but didn’t know too much about them – they were just being discovered. Now we...more
Science is designed to make predictions, which can then be tested. Sadly, this book tries to pass itself off as science. But this is a religious text.
This guy Brian Greene,...more
De vez en cuando surge un maestro de la divulgación científica. Brian Greene saltó a la fama de la divulgación científica con este libro. Se trata de una introducción a la teoría de cuerdas, una de las estructuras intelectuales más complejas paridas por la mente humana. El estilo es muy claro y ameno -se ve que el autor se divierte escribiendo- y resulta una lectura apasionante y muy enriquecedora incluso para lectores con formación física, pues las ideas de las que habla no están en la carrera....more
This book could have been a real brain buster, but Brian Greene explains the most complicated ideas so the layman can understand them. For instance I'd read about string theory before and thought the universe was full of million mile long invisible strings like sinews...more
Unfortunately, there are digressions and obvious gaps that most readers are trying to come to terms with, which Greene doesn't even mention. Oftentimes, many...more
The remainder of the text de...more
After reading Faster Than the Speed of Light this book was a natural follow up - Magueijo does a lot of "elegant bashing".
This book was very good but definitely not for as casual of an audience as A Brief History of Time. The ideas presented here can be appreciated by anyone - but Greene provides details that are fairly advanced. I have degrees in electrical engineering and mathematics and some of the top...more