Six Not So Easy Pieces: Einstein's Relativity, Symmetry, and Space-Time

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No twentieth-century American scientist is better known to a wider spectrum of people than Richard P. Feynman (1918–1988)—physicist, teacher, author, and cultural icon. His autobiographies and biographies have been read and enjoyed by millions of readers around the world, while his wit and eccentricities have made him the subject of TV specials and even a theatrical film. The spectacular reception of the book and audio versions of Feynman’s Six Easy Pieces (published in 1995) resulted in a worldwide clamor for “More Feynman! More Feynman!” The outcome is these six additional lectures, drawn from the celebrated three-volume Lectures on Physics. Though slightly more challenging than the first six, these lectures are more focused, delving into the most revolutionary discovery in twentieth-century physics: Einstein’s Theory of Relativity. No single breakthrough in twentieth-century physics (with the possible exception of quantum mechanics) changed our view of the world more than that of Einstein’s discovery of relativity. The notions that the flow of time is not a constant, that the mass of an object depends on its velocity, and that the speed of light is a constant no matter what the motion of the observer, at first seemed shocking to scientists and laymen alike. But, as Feynman shows so clearly and so entertainingly in the lectures chosen for this volume, these crazy notions are no mere dry principles of physics, but are things of beauty and elegance. No one—not even Einstein himself—explained these difficult, anti-intuitive concepts more clearly, or with more verve and gusto, than Richard Feynman.

184 pages, Paperback

First published January 1,1963

About the author

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Richard Phillips Feynman was an American physicist known for the path integral formulation of quantum mechanics, the theory of quantum electrodynamics and the physics of the superfluidity of supercooled liquid helium, as well as work in particle physics (he proposed the parton model). For his contributions to the development of quantum electrodynamics, Feynman was a joint recipient of the Nobel Prize in Physics in 1965, together with Julian Schwinger and Sin-Itiro Tomonaga. Feynman developed a widely used pictorial representation scheme for the mathematical expressions governing the behavior of subatomic particles, which later became known as Feynman diagrams. During his lifetime and after his death, Feynman became one of the most publicly known scientists in the world.

He assisted in the development of the atomic bomb and was a member of the panel that investigated the Space Shuttle Challenger disaster. In addition to his work in theoretical physics, Feynman has been credited with pioneering the field of quantum computing, and introducing the concept of nanotechnology (creation of devices at the molecular scale). He held the Richard Chace Tolman professorship in theoretical physics at Caltech.

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See Ричард Фейнман

Community Reviews

Rating(3.9 / 5.0, 100 votes)
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April 17,2025
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Defently more complex than six Easy pieces and needs concentration while reading.
April 17,2025
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It would be unfair for me to rate something I can't fully understand. This is full of math and you will need at least some calculus, algebra, trigonometry, and an open mind to get through this. The concepts are fascinating but at times it feels like he meanders. However, he always comes to his point. If you're going to study this then I would say actually go for his original Lectures on Physics, keeping in mind that we have newer understanding now so there will be some errors. Still, for those interested in Physics, this is a treasure.
April 17,2025
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Feynman olağanüstü etkili bir eğitimciydi. Sayısız ödülleri arasında, 1972'de kazandığı Örsted Öğretim Madalyası'yla özellikle gurur duyardı. Özgün olarak 1963'te basılmış olan Feynman'ın Fizik Dersleri'ni, Scientific American dergisinde bir eleştirmen şöyle betimliyordu: “Çetin, ama besleyici ve leziz. 25 yıl sonra öğretmenler için yol gösterici ve yeni başlayan öğrenciler içinse en iyisi.” Bu kitabın içeriğini oluşturan konular Feynman’ın fizik derslerinin popülerleştirilmiş özetleridir. Altı Kolay Parça’dan farklı olarak bir parça daha fazla matematik içeren Altı Zor Parça, kara deliklerden solucan deliklerine, atom enerjisinden zaman bükülmelerine kadar Einstein göreliliği, simetri ve uzayzaman konularını Feynman’ın usta anlatımıyla sunmaktadır.

“Richard Feynman'ın neden böylesine büyük bir öğretmen olduğunu anlamak için, onun bir bilim insanı olarak olağanüstü niteliğini takdir etmek önemlidir.”
Roger Penrose
“Feynman büyük bir öğretmenden daha büyüktü. Onun yeteneği, onu öğretmenlerin olağanüstü öğretmeni yapıyordu”
David L. Goodstein
“Bu derslerde, Feynman'ın zekâsı ve dehası hakkında duyup durduğunuz her şey ortaya çıkıyor.”
John Horgan Bilimin Sonu’nun yazarı
April 17,2025
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For all of those who took introductory college level physics courses once upon a time, and wish to know more about the development of the science during the 20th century, this is a very authentic introduction. A basic understanding of calculus is important, even if it was acquired some years ago and partially forgotten, to comprehend the various mathematical explanations that go along with any serious study of physics. If that doesn't scare you, or if you have the will and the patience to give it a try anyway, Feynmann's presentation is imaginative, entertaining, and for the most part accessible.
Part of his original "Lectures on Physics," written and delivered for an audience of undergraduate college students, this shorter work covers some of the most important ideas and discoveries of modern physics including Einstein's special theory of relativity, space time, and gravitational equivalence. Persistent references to other parts of the original work sometimes leave information wanting, but generally the concepts covered are well explained in a creative but direct manner intended to shed light on difficult ideas without being convoluted or contradictory. Despite it's small size, not many would consider it light reading, however, if one is genuinely looking to learn something about the wonders and intricacies of our universe and how it operates, Feynmann remains an excellent teacher.
April 17,2025
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Writing this review many months after reading the book I find I can't remember how well it worked for me. The book has the same style and accessibility as its predecessor but the maths can be difficult to follow. I think I need to read it again!
April 17,2025
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The principle of Conservation of Momentum, to me, is the most stunning nature of physics, and I guess the way Feynman understands and explains physical principles is the next stunning nature of physics!


Having a high school knowledge of physics and mathematics can give you a delightful time through the pages of this book and give you the chance to cherish understanding Einstein’s relativity in six-not-so-easy pieces.

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