Feynman had a rare ability to explain things I worked in nuclear physics research but am an electrical engineer and various people tried to give me a gloss of QED Why they didn t just give me this book is a mystery.Feynman explains how to do all the phase and related calculations using geometry little arrows I can t say if that is enough if you don t have some clue what is really happening If you have a math engineering background, it s pretty easy to see this is just complex addition and multiplication on objects of the form exp it where i is the square root of 1 The way he explains this is itself as fascinating as the actual content.If you are impressed with Feyman s approach, you might like Lakoff s book Where Mathematics Comes From He makes an amazing argument that essentially all math is just a clever series of imagination tricks using our ability to count, measure, and imagine rotating things in our heads. A must read for everyone interested in a deep understanding of physics Kind regards Kind regards Kind regards Kind regards I very much enjoyed reading the book, probably because I appreciate Richard Feynman s writing style He was a brilliant Physicist, and Nobel Prize Winner in Physics However, I have issues with Quantum Physics I am a retired nuclear physicist, and somehow Quantum physics reduces the entire universe to PROBABILITIES II will not go into specifics, which would put everyone to sleep, but I personally prefer Relativity to explain the Universe One small example Quantum theory maintains that Any Moment, OR Instant Like NOW is that exact moment throughout the Universe Relativity maintains that TIME slows down near a large gravity well such as a star, like our sun, and as any mass approaches the speed of light, ALSO, the Mass Increases at these great speeds, thus there cannot be a Universal NOW instant. This book had not been published while I was a physics major However, Feynman does a good job simplifying a difficult topic He comes across as no non sense He explains the simplifications fairly well though he has to bring in the whole concept of complex numbers The last chapter is difficult, as Feynman tries to describe the nature of light s interaction with matter Read it than once to get a better flavor It is remarkable work. Richard Phillips Feynman what can I say about this guy that hasn t been said already through the years Feynman was an incredibly original physicist fellow Nobel laureate Julian Schwinger called him someone who marched to his beat who dazzled and impressed not only his esteemed peers but also managed to carve himself a special place in the public eye.Feynman is that unique and rare breed of scientist who can successfully explain very complicated ideas in simple terms so non scientists or scientists not in his field can understand He uses his own brand of metaphors and analogies to clarify quantum mechanics, and QED is the perfect example of that.In just four lectures delivered, incidentally, at my alma mater UCLA in the 1980 s , Feynman distills the essence of Quantum Electrodynamics without assuming any prior math or physics background in his audience He doesn t use any calculus, any abstract algebra, heck he doesn t even mention complex numbers once Incredible QED has been hailed as the most precise scientific theory ever constructed because its predictions have been confirmed by so many experiments throughout the last half of 20th century It reconciles the many discrepancies between the classical version of electromagnetism and quantum mechanics and successfully explains many other anomalies seen in nature Feynman shared the Nobel in physics with Schwinger and Tomonaga for playing a key role in developing the theory.Using simple arrows and basic operations like shrinking and turning arrows, Feynman explains phenomena such as reflection by mirror, partial reflection by glass, absorption by opaque materials, the apparent slowing of light as it goes through water and other media etc All through the lectures he maintains a light tone and makes several self deprecating jokes about the way physicists name things he reserves particular scorn and derision for the naming of quarks.As a medical graduate student in neuroscience but with some math and physics background but not enough to actually understand renormalization and gauge theories , I really appreciated Feynman s ability to explain QED so effectively without ever sounding condescending which a lot of physicists are unfortunately too prone to do.This your chance to read one of 20th century s most influential physicist break down one of the most fundamental theories of physics with great style and elegance. In the introduction, it is suggested that you slowly reread paragraphs to be sure you understand them Good advice QED is not something intuitively easy to understand, even though the explanations are presented with a minimum number of formulas and scientific jargon.Another reivewer pointed out that this book is good because it is short I agree even if you don t understand it all on the first read, it isn t a major commitment to read it a second or third time.A good teacher makes you feel smart and confident enough in your newly acquired knowledge to share it with others Even though I couldn t pass even a basic test on QED, I did learn several interesting things about light that I can explain in casual conversation and even demonstrate Share what you ve learned with your children This is interesting enough that you might inspire him or her to become a physicist. Feynman at his best A classical presentation of QED for lay people, explaining it very clearly but not giving up on presenting the real stuff. In QED The Strange Theory Of Light And Matter Richard P Feynman Explains, In His Lucid And Witty Style, The Revolutionary Scientific Theory That Won Him The Nobel Prize. Quantum Electrodynamics Or QED For Short Is The Theory That Explains How Light And Electrons Interact, And In Doing So Illuminates The Deepest And Most Complex Mysteries Of The World Around UsThanks To Richard Feynman And His Colleagues, Who Won The Nobel Prize For Their Groundbreaking Work In This Area, It Is Also One Of The Rare Parts Of Physics That Is Known For Sure A Theory That Has Stood The Test Of Time In These Entertaining Lectures Feynman Uses Clear Everyday Examples To Provide The Definitive Introduction To QED. The Perfect Example Of Scientific Genius Independent If You Don T Believe Nature Is Absurd, Let Chatty Professor Feynman Convince You In His Series Of Exceedingly Reader Friendly Lectures Full Of Witty One Liners, With Its Learning Lightly Worn, It S A Book To Enlighten Mail On Sunday Does A Marvelous Job Of Explaining One Of Twentieth Century Physics Few Unqualified Triumphs The New York TimesRichard P Feynman 1918 1988 Was One Of This Century S Most Brilliant Theoretical Physicists And Original Thinkers Feynman S Other Books, Also Available In Penguin, Include QED, Six Easy Pieces, Six Not So Easy Pieces, Don T You Have Time To Think, The Pleasure Of Finding Things Out, What Do You Care What Other People Think And The Meaning Of It All.