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For the Love of Physics: From the End of the Rainbow to the Edge of Time - A Journey Through the Wonders of Physics
“YOU HAVE CHANGED MY LIFE” is a common refrain in the emails Walter Lewin receives daily from fans who have been enthralled by his world-famous video lectures about the wonders of physics. “I walk with a new spring in my step and I look at life through physics-colored eyes,” wrote one such fan. When Lewin’s lectures were made available online, he became an instant YouTube celebrity, and The New York Times declared, “Walter Lewin delivers his lectures with the panache of Julia Child bringing French cooking to amateurs and the zany theatricality of YouTube’s greatest hits.” For more than thirty years as a beloved professor at the Massachusetts Institute of Technology, Lewin honed his singular craft of making physics not only accessible but truly fun, whether putting his head in the path of a wrecking ball, supercharging himself with three hundred thousand volts of electricity, or demonstrating why the sky is blue and why clouds are white. Now, as Carl Sagan did for astronomy and Brian Green did for cosmology, Lewin takes readers on a marvelous journey in For the Love of Physics, opening our eyes as never before to the amazing beauty and power with which physics can reveal the hidden workings of the world all around us. “I introduce people to their own world,” writes Lewin, “the world they live in and are familiar with but don’t approach like a physicist—yet.” Could it be true that we are shorter standing up than lying down? Why can we snorkel no deeper than about one foot below the surface? Why are the colors of a rainbow always in the same order, and would it be possible to put our hand out and touch one? Whether introducing why the air smells so fresh after a lightning storm, why we briefly lose (and gain) weight when we ride in an elevator, or what the big bang would have sounded like had anyone existed to hear it, Lewin never ceases to surprise and delight with the extraordinary ability of physics to answer even the most elusive questions. Recounting his own exciting discoveries as a pioneer in the field of X-ray astronomy—arriving at MIT right at the start of an astonishing revolution in astronomy—he also brings to life the power of physics to reach into the vastness of space and unveil exotic uncharted territories, from the marvels of a supernova explosion in the Large Magellanic Cloud to the unseeable depths of black holes. “For me,” Lewin writes, “physics is a way of seeing—the spectacular and the mundane, the immense and the minute—as a beautiful, thrillingly interwoven whole.” His wonderfully inventive and vivid ways of introducing us to the revelations of physics impart to us a new appreciation of the remarkable beauty and intricate harmonies of the forces that govern our lives.
320 pages, Hardcover
First published May 3, 2011
1040 people are currently reading
9927 people want to read
About the author
Walter Lewin
22 books188 followersWalter H. G. Lewin, Ph.D. is a Dutch astrophysicist and professor emeritus of physics at the Massachusetts Institute of Technology. Born in the Hague Netherlands, professor Lewin achieved his PhD in nuclear physics in 1965 at the Delft University of Technology and came to MIT in 1966.
Lewin's major contributions in astrophysics include the discovery of the first slowly rotating neutron star through all-sky balloon surveys, research in X-ray detection in investigations through satellites and observatories worldwide. Lewin is well known for his popular lectures on physics and massive online courses taught on edX and MIT OpenCourseWare.
Lewin's major contributions in astrophysics include the discovery of the first slowly rotating neutron star through all-sky balloon surveys, research in X-ray detection in investigations through satellites and observatories worldwide. Lewin is well known for his popular lectures on physics and massive online courses taught on edX and MIT OpenCourseWare.
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Displaying 1 - 30 of 380 reviews
July 27, 2016
This man proves that teachers make a difference. That a good teacher can make anyone care about his topic.
I loved math in school, but when I got to calculus, for some reason, I just couldn't understand it. And so I decided to skip physics altogether. However, I really wanted to read the book Einstein: His Life and Universe, because I think its author, Walter Isaacson, is a genius. It seemed like the perfect marriage of author and subject! But I have never liked science, as it was taught in school. Too much memorization, not enough excitement. And in high school, bad teachers. Meanies! I felt like I needed some type of physics background to understand Einstein.
Because of Professor Lewin, I am now fascinated by science. I never thought this could happen, but his picture on the cover of the book had me questioning my preconceived notions. The audiobook was also available at one of the local libraries, so I thought I'd take a chance. I'm so glad I did. He quite simply loves physics, and his enthusiasm and passion is contagious.
Walter Isaacson, with his book Benjamin Franklin: An American Life, showed me that history can be the opposite of dull if one finds the right book. This can be that book for you if you think physics is boring. Lewin blew my mind in the first chapter, as he explained in real terms the vastness of the universe. He explores stars, the magic of a straw, rainbows (in some depth), and the physics behind musical instruments, plus black holes, X-rays, and much more. He provides examples that put the "wow" back in to science, making abstract concepts concrete, and real. I had so many light bulb moments.
To really appreciate this man's gift, you must see him in the classroom. Thanks to MIT's Open Courseware, you can. Here is the link to the list of lectures for his course titled "Physics I: Classical Mechanics".
http://ocw.mit.edu/courses/physics/8-...
I promise you, you won't be bored. I'll never forget this book or its author.
I loved math in school, but when I got to calculus, for some reason, I just couldn't understand it. And so I decided to skip physics altogether. However, I really wanted to read the book Einstein: His Life and Universe, because I think its author, Walter Isaacson, is a genius. It seemed like the perfect marriage of author and subject! But I have never liked science, as it was taught in school. Too much memorization, not enough excitement. And in high school, bad teachers. Meanies! I felt like I needed some type of physics background to understand Einstein.
Because of Professor Lewin, I am now fascinated by science. I never thought this could happen, but his picture on the cover of the book had me questioning my preconceived notions. The audiobook was also available at one of the local libraries, so I thought I'd take a chance. I'm so glad I did. He quite simply loves physics, and his enthusiasm and passion is contagious.
Walter Isaacson, with his book Benjamin Franklin: An American Life, showed me that history can be the opposite of dull if one finds the right book. This can be that book for you if you think physics is boring. Lewin blew my mind in the first chapter, as he explained in real terms the vastness of the universe. He explores stars, the magic of a straw, rainbows (in some depth), and the physics behind musical instruments, plus black holes, X-rays, and much more. He provides examples that put the "wow" back in to science, making abstract concepts concrete, and real. I had so many light bulb moments.
To really appreciate this man's gift, you must see him in the classroom. Thanks to MIT's Open Courseware, you can. Here is the link to the list of lectures for his course titled "Physics I: Classical Mechanics".
http://ocw.mit.edu/courses/physics/8-...
I promise you, you won't be bored. I'll never forget this book or its author.
April 19, 2021
An awesome book by an awesome man. The way of presenting knowledge is so simple that even a nerd can understand. This book talks about the basic concepts of physics which are used in our daily life and one can know and learn a lot about physics through this single book of MIT Professor, Walter Lewin. Highly recommended.
July 22, 2015
পনের কেজি ভরের একটি লোহার গোলক ছুটে আসছে বিপজ্জনক গতিতে মুখ বরাবর। চোখ মুখ ভয়ে খিঁচ আছে। যদি এটি ঠিক আঘাত হানতে পারে তবে স্কাল ফ্রাকচার হয়ে নির্ঘাৎ মৃত্যু। রক্তে বেড়ে গেছে অ্যাড্রেনালিন হরমোন যেটাকে বলে হয় rush hormone. মস্তিষ্ক প্রতিটি মুহুর্তে ইংগিত দিচ্ছে সরে যাওয়ার জন্য। কিন্তু এরই সাথে কাজ করে যাচ্ছে মস্তিষ্কের pre-frontal cortex যেটা কিনা মানুষকে আলাদা করে অন্যান্য স্তন্যপায়ী প্রাণী হতে। মানব মস্তিষ্কের যুক্তিবিদ্যা যেখান থেকে উৎসারিত হয়। সেটি বলছে, উঁহু তুমি মরবে না। পদার্থবিদ্যায় শক্তির সংরক্ষণশীলতা নীতি বলে একটি কথা আছে। তুমি ঠিক যে উচ্চতা হতে সরল দোলককে ছেড়েছ সেটি সেই উচ্চতা হতে একটুও উপরে উঠতে পারবে না। কে জিতল? সেটা পরীক্ষায় নিজেকে গিনিপিগ বানানো এমআইটি'র প্রফেসর ওয়াল্টার লেউইন এর মুখ থেকেই শোনা যাক,
"Physics works. And i am alive!"
যারা নাইন টেইনে সায়েন্স নিয়ে পড়েছি ( এখনকার বইয়ে নেই :( ) তারা সরল দোলকের সমীকরণের সাথে পরিচিত। T = 2*pi*sqrt(L/g). একটি নির্দিষ্ট স্থানে, নির্দিষ্ট দৈর্ঘ্যের সুতোর জন্য সরল দোলকের দোলনকাল ধ্রুব। সেটা ববের কৌণিক সরণ কিংবা ভরের উপর নির্ভর করে না।
সেটা ডেমোনস্ট্র্যাশনের জন্য একটি সরল দোলক নেওয়া হল। L=5.21m. দোলনকাল সমীকরণ থেকে হিসেব করা হল, 4.58 সেকেন্ড। লেউইন বিভিন্ন কৌণিক সরণের জন্য দোলনকাল পরীক্ষা করে বের করলেন এবং প্রত্যাশিতভাবেই সবগুলোই আসল 4.58+-0.02 সেকেন্ড। এখানে একটা জিনিস মজার বিষয়, আমরা অনেকেই যেটা অ্যাভয়েড করি - তা হল পরীক্ষায় পর্যবেক্ষণের সীমাবদ্ধতা। আমাদের পরীক্ষায় নানা ধরণের সীমাবদ্ধতার কারণে মানের তারতম্য হতে পারে। ওয়াল্টার লেউইন তার প্রতিটি ডেমোনস্ট্রেশনে সেটা উল্লেখ করে থাকেন। এরপর বাকি থাকল ভরের উপর দোলনকালের অনির্ভরশীলতার প্রমাণ করা। বব (গোলকটি) পরিবর্তন করে যদিও প্রফেসর তা দেখাতে পারতেন, কিন্তু তিনি চান পদার্থবিজ্ঞানকে আনন্দের মাধ্যমের উপস্থাপন করতে। ৭০ বছরের বেশী বয়স্ক এই প্রফেসর ববের উপর ঝুলে ও শুয়ে ( কারণ, না শুলে L এর মান পরিবর্তন হয়ে যাবে!) দেখালেন যে দোলনকাল ঠিক সেটাই 4.58+-0.02 second. অসাধারণ এই পরীক্ষার ছবিটি প্রচ্ছদে দৃষ্টব্য। তারচেয়েও অসাধারণ হল, পরীক্ষাটি শেষ করার পর মুচকি হেসে মাথা নেড়ে চোখ টিপে আঙ্গুল নাড়িয়ে বলা, Told y'a, Physics always works!
40 বছরের বেশী সময় ধরে বিশ্বখ্যাত MIT উইনিভার্সিটির ফিজিক্সের প্রফেসর পদে থাকা Walter Lewin এরকম করে পদার্থবিদ্যার আপাত দৃশ্যমান খটমটে বিষয় গুলো সবার সামনেই তুলে ধরেছেন অভিনব ভাবে। তিনি দেখিয়েছেন, কিভাবে পদার্থবিজ্ঞান কি করে মানুষের চোখ খুলে দেয় এবং সেই চোখ দিয়ে নতুন করে পৃথিবীকে দেখতে হয়। তিনি বলেন, "You won't be able to resist it. It's a disease that will haunt you for the rest of your life. It's my fault, but i will not be able to cure you, and i'm not even sorry for that, not at all!"
Back to the future মুভির সেই পাগলা বিজ্ঞানী ড. এমেট ব্রাউনের মত অনেকটা দেখতে এই অসাধারণ প্রফেসরটি বলেন,
From now on, you've lost your virginity. Physics has removed your innocence of ignorance.
ইশশ্, আমাদের দেশেও যদি এভাবে ফিজিক্স পড়ানো হত!
পুনশ্চ - ১ঃ ইউটিউবে Walter Lewin সার্চ করে তার অনেক লেকচার পাওয়া যাবে।
পুনশ্চ - ২ঃ এই লিংকে Walter Lewin এর কিছু অনলাইন কোর্স ছিল। কিন্তু এই অনাকাঙ্খিত ঘটনার পর MIT কতৃপক্ষ তা সরিয়ে নিয়েছে। যারা ব্যক্তি লেউইনকে জানা অপেক্ষা তার পদার্থবিজ্ঞানের প্রতি ভালবাসাকে প্রাধান্য দিতে চান তাদের ঐ লিংকটাতে ঢুঁ দিতে নিষেধ করা হল।
যারা নাইন টেইনে সায়েন্স নিয়ে পড়েছি ( এখনকার বইয়ে নেই :( ) তারা সরল দোলকের সমীকরণের সাথে পরিচিত। T = 2*pi*sqrt(L/g). একটি নির্দিষ্ট স্থানে, নির্দিষ্ট দৈর্ঘ্যের সুতোর জন্য সরল দোলকের দোলনকাল ধ্রুব। সেটা ববের কৌণিক সরণ কিংবা ভরের উপর নির্ভর করে না।
সেটা ডেমোনস্ট্র্যাশনের জন্য একটি সরল দোলক নেওয়া হল। L=5.21m. দোলনকাল সমীকরণ থেকে হিসেব করা হল, 4.58 সেকেন্ড। লেউইন বিভিন্ন কৌণিক সরণের জন্য দোলনকাল পরীক্ষা করে বের করলেন এবং প্রত্যাশিতভাবেই সবগুলোই আসল 4.58+-0.02 সেকেন্ড। এখানে একটা জিনিস মজার বিষয়, আমরা অনেকেই যেটা অ্যাভয়েড করি - তা হল পরীক্ষায় পর্যবেক্ষণের সীমাবদ্ধতা। আমাদের পরীক্ষায় নানা ধরণের সীমাবদ্ধতার কারণে মানের তারতম্য হতে পারে। ওয়াল্টার লেউইন তার প্রতিটি ডেমোনস্ট্রেশনে সেটা উল্লেখ করে থাকেন। এরপর বাকি থাকল ভরের উপর দোলনকালের অনির্ভরশীলতার প্রমাণ করা। বব (গোলকটি) পরিবর্তন করে যদিও প্রফেসর তা দেখাতে পারতেন, কিন্তু তিনি চান পদার্থবিজ্ঞানকে আনন্দের মাধ্যমের উপস্থাপন করতে। ৭০ বছরের বেশী বয়স্ক এই প্রফেসর ববের উপর ঝুলে ও শুয়ে ( কারণ, না শুলে L এর মান পরিবর্তন হয়ে যাবে!) দেখালেন যে দোলনকাল ঠিক সেটাই 4.58+-0.02 second. অসাধারণ এই পরীক্ষার ছবিটি প্রচ্ছদে দৃষ্টব্য। তারচেয়েও অসাধারণ হল, পরীক্ষাটি শেষ করার পর মুচকি হেসে মাথা নেড়ে চোখ টিপে আঙ্গুল নাড়িয়ে বলা, Told y'a, Physics always works!
40 বছরের বেশী সময় ধরে বিশ্বখ্যাত MIT উইনিভার্সিটির ফিজিক্সের প্রফেসর পদে থাকা Walter Lewin এরকম করে পদার্থবিদ্যার আপাত দৃশ্যমান খটমটে বিষয় গুলো সবার সামনেই তুলে ধরেছেন অভিনব ভাবে। তিনি দেখিয়েছেন, কিভাবে পদার্থবিজ্ঞান কি করে মানুষের চোখ খুলে দেয় এবং সেই চোখ দিয়ে নতুন করে পৃথিবীকে দেখতে হয়। তিনি বলেন, "You won't be able to resist it. It's a disease that will haunt you for the rest of your life. It's my fault, but i will not be able to cure you, and i'm not even sorry for that, not at all!"
Back to the future মুভির সেই পাগলা বিজ্ঞানী ড. এমেট ব্রাউনের মত অনেকটা দেখতে এই অসাধারণ প্রফেসরটি বলেন,
From now on, you've lost your virginity. Physics has removed your innocence of ignorance.
ইশশ্, আমাদের দেশেও যদি এভাবে ফিজিক্স পড়ানো হত!
পুনশ্চ - ১ঃ ইউটিউবে Walter Lewin সার্চ করে তার অনেক লেকচার পাওয়া যাবে।
পুনশ্চ - ২ঃ এই লিংকে Walter Lewin এর কিছু অনলাইন কোর্স ছিল। কিন্তু এই অনাকাঙ্খিত ঘটনার পর MIT কতৃপক্ষ তা সরিয়ে নিয়েছে। যারা ব্যক্তি লেউইনকে জানা অপেক্ষা তার পদার্থবিজ্ঞানের প্রতি ভালবাসাকে প্রাধান্য দিতে চান তাদের ঐ লিংকটাতে ঢুঁ দিতে নিষেধ করা হল।
May 3, 2015
Walter Lewin was a professor of physics at the Massachusetts Institute of Technology (MIT) until his retirement in 2009 and was well known for his popular lectures on physics which appeared on the MIT OpenCourseWare website - that is until MIT indefinitely suspended access to Lewin's courses on OpenCourseWare in late 2014 "after its investigation of a serious matter" (to quote the message that now appears on the OpenCourseWare website when you click on some of the links in Lewin's book). As I don't know the outcome the investigations I will restrict myself here to this specific comment from the website but those intrigued as to what this serious matter was are free to search online.
The book is a strange one, both in terms of its contents and its style of writing. The first nine chapters address a few selected areas of physics, such as bodies in motion, electricity, magnetism, rainbows, conservation of energy, but leave many other areas untouched; the final six chapters focus on the author's main area of research, namely x-ray astronomy. Undoubtedly, the book is unbalanced in terms of what it covers and doesn't cover. However, this is not so much a book that attempts to explain physics, but rather a book that explains how Lewin taught physics. Thus the book provides a platform, especially in the earlier chapters, for Lewin to describe some of the bizarre demonstrations he would perform in front of students, one in particular which appeared quite dangerous although his faith in the reproducibility of physics ensured his safety.
The style of writing was not to my liking. I'm not sure who he was expecting to read the book but to my mind he comes across as somewhat patronising, assuming perhaps that his readers know nothing of physics. In reality, I suspect most readers are quite clued up on the subject, and are the reading the book largely to see how Lewin approached the subject. Nevertheless, his passion and energy for both physics and education come across in abundance and it is easy to see why he had such a good reputation as a teacher.
The book is a strange one, both in terms of its contents and its style of writing. The first nine chapters address a few selected areas of physics, such as bodies in motion, electricity, magnetism, rainbows, conservation of energy, but leave many other areas untouched; the final six chapters focus on the author's main area of research, namely x-ray astronomy. Undoubtedly, the book is unbalanced in terms of what it covers and doesn't cover. However, this is not so much a book that attempts to explain physics, but rather a book that explains how Lewin taught physics. Thus the book provides a platform, especially in the earlier chapters, for Lewin to describe some of the bizarre demonstrations he would perform in front of students, one in particular which appeared quite dangerous although his faith in the reproducibility of physics ensured his safety.
The style of writing was not to my liking. I'm not sure who he was expecting to read the book but to my mind he comes across as somewhat patronising, assuming perhaps that his readers know nothing of physics. In reality, I suspect most readers are quite clued up on the subject, and are the reading the book largely to see how Lewin approached the subject. Nevertheless, his passion and energy for both physics and education come across in abundance and it is easy to see why he had such a good reputation as a teacher.
August 15, 2019
یه کتاب شیرین فیزیک هست که میتونین با خوندنش بسیاری از اتفاقات دوروبرتون رو که از علیتش اطلاع ندارین بفمهمین. از همین چیزای دوروبر و ساده شروع میشه: چرا اسمون آبیه و چرا ابرا سفیدن؟ چرا ابرایی که پربارتر هستن و رطوبت زیادی دارن سیاه هستن؟ جریان وزن شتاب الکتریسیته و پرتوهای x و...چیه؟ چرا دخترا اینقدر پول پرست شدن؟( هه هه شوخی)
اگر آشنایی با فیزیک نداشته باشین ممکنه قسمت هایی از کتاب واستون سنگین و خسته کننده باشه. توصیه ی دیگه ای که دارم اینه که کتابای این شکلی رو نمیشه بشینی پاش و مثل یک کتاب داستان بخونی تا تمومشون کنی. باید مزه مزه اشون کرد. گاهی که مثلا بیکاری بگی ااا راستی برم ببینم جریان این رنگین کمان چیه . یا مثلن اااا برم ببینم جریان سازهای بادی چی هست!
اگر آشنایی با فیزیک نداشته باشین ممکنه قسمت هایی از کتاب واستون سنگین و خسته کننده باشه. توصیه ی دیگه ای که دارم اینه که کتابای این شکلی رو نمیشه بشینی پاش و مثل یک کتاب داستان بخونی تا تمومشون کنی. باید مزه مزه اشون کرد. گاهی که مثلا بیکاری بگی ااا راستی برم ببینم جریان این رنگین کمان چیه . یا مثلن اااا برم ببینم جریان سازهای بادی چی هست!
January 29, 2016
This is the great WALTER LEWIN, my best teacher ever of physics, he makes you love physics and see the world in another way forever, in a way full of wonders and appreciations.
For more pleasure it's better to see also the video:
https://www.youtube.com/watch?v=4a0Fb...
from his book:
"I learned that art is not only, or even mostly, about beauty; it is about discovery, and this is where art and physics come together for me."
"When I began lecturing at MIT in the 1970s, it was part of my personality to put more emphasis on the beauty and the excitement rather than the details that would be lost on the students anyway."
"Whenever students ask a question, I always say, “that's an excellent question.” The absolute last thing you want to do is make them feel they're stupid and you're smart."
"It's so much more important to me for students to remember the beauty of what they have seen than whether they can reproduce what you've written on the blackboard. What counts is not what you cover, but what you uncover.".
For more pleasure it's better to see also the video:
https://www.youtube.com/watch?v=4a0Fb...
from his book:
"I learned that art is not only, or even mostly, about beauty; it is about discovery, and this is where art and physics come together for me."
"When I began lecturing at MIT in the 1970s, it was part of my personality to put more emphasis on the beauty and the excitement rather than the details that would be lost on the students anyway."
"Whenever students ask a question, I always say, “that's an excellent question.” The absolute last thing you want to do is make them feel they're stupid and you're smart."
"It's so much more important to me for students to remember the beauty of what they have seen than whether they can reproduce what you've written on the blackboard. What counts is not what you cover, but what you uncover.".
March 29, 2013
I would love to have taken one of Walter Lewin's classes. His teaching style is fun and energetic, and he seems to love to get his students involved in his experiments. The first part of the book is a series of 20 to 30 minute segments on various topics about the physics of everyday things. The topics range from how airplanes fly to the maximum depth a snorkler can handle and why to how we measure the distances of stars.
The second half of the books discusses his own career in research using x-ray telescopes. This part is not quite as fun as the first half, but still worth a read.
Note that I listened to the audio version of this book, and I had to give it my full attention, or else I wasn't able to absorb everything he was saying. I thoroughly enjoyed listening and would recommend it to anyone who has a curiosity about nature and why things work the way they do.
The second half of the books discusses his own career in research using x-ray telescopes. This part is not quite as fun as the first half, but still worth a read.
Note that I listened to the audio version of this book, and I had to give it my full attention, or else I wasn't able to absorb everything he was saying. I thoroughly enjoyed listening and would recommend it to anyone who has a curiosity about nature and why things work the way they do.
January 29, 2016
I might be too excited about this book; read with a grain of salt. If there’s an Oscar for hilariously explaining the world through physics to the layperson, ًWalter Lewin should get two. Not that I grasped everything, several things went over my head no doubt, but I enjoyed reading about them because he doesn’t take himself too seriously (I hate people who do). Added bonus: there’s the littlest amount of math here, which is great because I’m allergic. It’s called dyscalculia. That basically means I can’t handle numbers bigger than five. So if someone like me could enjoy this book, then it must be amazing!
September 8, 2017
This book is not intended to teach physics to those who have studied physics and to those who pursue that subject professionally.
To those who have forgotten their physics lessons, this will be a great recaller. It brings back all the pleasures that got lost in all the years after the college days.
To those who still view the world and the life there in, in a way learned to look in their old physics classes, though not living by physics, this book will help clear any fog they collected on the way. For me it was like a newly tested pair of reading glasses which brought in to focus many blurred images.
A wonderful book written with passion.
To those who have forgotten their physics lessons, this will be a great recaller. It brings back all the pleasures that got lost in all the years after the college days.
To those who still view the world and the life there in, in a way learned to look in their old physics classes, though not living by physics, this book will help clear any fog they collected on the way. For me it was like a newly tested pair of reading glasses which brought in to focus many blurred images.
A wonderful book written with passion.
April 14, 2024
que libro tan interesante y que forma de explicar las cosas, la verdad es que me gustó muchísimo y aprendí cosas nuevas ☺
July 13, 2012
When I saw the Dutch ratings on this book (hardly 1 star) I was utterly shocked. I had heard so many great stories about Walter Lewin, appearing in a very well-known Dutch TV-show and captivating thousands of ears of interest. I, unfortunately, haven't yet had the opportunity to experience one of his lectures, but I certainly will do some research soon. I heard that this man did a magnificent job on making serious physics understandable for less-but-still-genius-human-beings like you and me (I get cheesy every now and then) and that's why I, as someone who loves science but doesn't have all that much of a genius mind, bought the book the moment I saw it in the bookstore (also because it was father's day and my father said this man is truly genius, literally and figuratively). One of the only reasons why I didn't rate this book five stars, is because I read the Dutch translated version and sometimes that was a bit confusing. From the moment I started reading this book I was captivated by his easy way of writing and I was able to flow right into the wonders of science and experience them myself. What I particularly loved about this book was Lewin's enthusiasm and his explicit love for science he is constantly trying to give to his readers, as a gift. Because he's so enthusiastic about science, you get enthusiastic too, automatically. An other thing that I admired was how Lewin managed to explain the simple wonders we see every day, but most of us do not pay attention anymore because we take them for granted. Lewin explains why the sky is blue, why clouds are white, why rainbows are curved and how to spot them in an efficient way, he teaches us about black holes, about gravity, about energy and much more, all the interesting parts of physics (as far as I can tell) are explained in a rather simple way. I do have to admit that I followed physics classes for five years in High School, so I can only say that I had some background knowledge on physics before reading this book, that's why I could skip some parts of it. In the end though, Lewin is starting to lose its pace and he converts to a faster way of explaining, which turns out to be quite confusing, consequently I haven't understood all of his last few chapters.
I would definitely recommend this book for people whose interests are with science (even if it's just a little bit) and want to learn about the simple wonders of the world and the universe, finding them quite complex when reading about them. Discover the mysteries and wonders of science and let Lewin take you on his tour through the universe.
I would definitely recommend this book for people whose interests are with science (even if it's just a little bit) and want to learn about the simple wonders of the world and the universe, finding them quite complex when reading about them. Discover the mysteries and wonders of science and let Lewin take you on his tour through the universe.
May 24, 2019
This book was brought accidentally to me by my brother. For the Love of Physics is one of my most favorite and loving science books of all time. It tells about the lives of both the Physics and Proff.Lewin. Dr.Lewin has taught the
world to look through the equations which many teachers and professors failed to do (If they at least knew it could be done, like my Physics teachers), and Proff.Lewin had made them a bunch of criminals (for teaching bad). It has a great and astonishing explanation from the atom's core to the giant black holes in our elegant universe, with a mix of many stories of the development of mankind in this field of Physics.
world to look through the equations which many teachers and professors failed to do (If they at least knew it could be done, like my Physics teachers), and Proff.Lewin had made them a bunch of criminals (for teaching bad). It has a great and astonishing explanation from the atom's core to the giant black holes in our elegant universe, with a mix of many stories of the development of mankind in this field of Physics.
September 18, 2024
I am a firm believer that any physicist who writes books “for the masses” has to be a bit arrogant. This book was no exception. BUT, it that doesn’t mean I didn’t enjoy it immensely. The author truly made me happy to learn about physics- something my high school science teacher was rather unable to do. Moreover, I learned to see everyday objects/phenomena differently. 5 stars
October 12, 2019
Me da pena reconocerlo, pero no me ha enamorado tanto como me esperaba. Quizás demasiada astrofísica (alrededor de 50% del libro) y poca física de nuestro día a día a un nivel más terrenal, algo sobre lo que pensaba que versaría este libro de este profesor maravilloso que a todos nos hubiera gustado tener. Te deja con ganas de más y de seguir leyendo y estudiando física lo que siempre es de agradecer.
December 5, 2019
Цікаві факти й експерименти.
Основне, звісно, відео лекції автора на Ютубі, згадувані у книжці. Але текст їх гарно доповнює, підсумовує без технічних подробиць.
Основне, звісно, відео лекції автора на Ютубі, згадувані у книжці. Але текст їх гарно доповнює, підсумовує без технічних подробиць.
February 1, 2018
Interesting tidbits from this book:
Lewin believes that Newton is the greatest physicist of all time (Einstein is next) because “his discoveries were so fundamental and so diverse.”
Though the universe’s age is estimated to be “about” 13.7 billion years old, Lewin writes that “the edge of the observable universe is about 47 billion light-years away from us in every direction.” This is because space has “expanded enormously since the big bang,” noting Hubble’s law (“the velocity at which galaxies move away from us is directly proportional to their distance from us. The farther away a galaxy is, the faster it is racing away.”)
Lewin clarifies the somewhat confusing free fall terminology: “Free fall is when the force acting upon you is exclusively gravitational, and no other forces act on you.”
The author writes that less that 20% of an airplane’s lift due to the shape of the wing where the air passing above the shaped wing speeds up relative to the air passing underneath. (Bernoulli’s principle). Reactive lift accounts for the rest (80% or greater). It is named for Newton’s third law. It occurs when air, “moving from the front of the wing to the back, is pushed downward by the wing. That’s the ‘action.’ That action must be met by an equal reaction of air pushing upward, so there is upward lift on the wing.” Controlling reaction lift is tricky, he states, especially at takeoffs and landings.
“Interstellar and intergalactic space,” Lewin writes, “are millions of times closer to a vacuum than the best vacuum we can make on Earth.” But, even so, space is not empty. Matter that floats “around in space has…identifiable characteristics,” which is plasma (ionized gasses – charged particles “such as hydrogen nuclei [protons] and electrons-of widely varying density.”) Lewin goes on the state that “more than 99.9 percent of all observable matter in the universe is plasma.”
On a night flight from the northeastern U.S. to Europe, sit on the left side of the airplane to see the aurora Borealis (northern lights – where the sun’s charged particles (solar wind) are directed into our atmosphere at the magnetic poles.
“The temperature at the core of our own sun…produces energy at a rate equivalent to more than a billion hydrogen bombs per second.”
In a supernova core collapse, “the pressure in the core can no longer hold out against the powerful pressure due to gravity, and the core collapses onto itself, causing an outward supernova explosion….The core collapses in milliseconds, and the matter falling in -- it actually races in at fantastic speeds, nearly a quarter the speed of light – raises the temperature inside to …about ten thousand times hotter than the core of our Sun.” Lewin also writes that “a core-collapse supernova emits two hundred times the energy that our sun has produced in the past 5 billion years, and all that energy is released in roughly 1 second—and 99 percent comes out in neutrinos!”
After some supernova core collapses, neutron stars are formed as remnants, with mass 1.4 times the sun’s tightly compacted into a city size space, and that “a teaspoon of neutron matter would weigh 100 million tons on Earth.” The neutron star in the Crab Nebula rotates 30 times a second; the fastest known neutron star rotates at 716 times per second.
After other supernova core collapses, a black hole is formed. At the center of a black hole lies a singularity, “a point with zero volume and infinite density.”
A third of the stars in the night sky are actually binary stars (“binaries”). Sirius, “the brightest star in the sky,” is a “binary system made up of two stars known as Sirius A and Sirius B.”
The Earth and the Moon are a binary system. “If you draw a line from the center of the Earth to the center of the Moon, there is a point on that line where the gravitational force toward the Moon is equal but opposite to the gravitational force toward the Earth.” What’s interesting about this statement is that “relative intensity” beyond any exact balance point seems inherent to gravitational and electromagnetic forces.
Lewin writes that gravity distorts the fabric of spacetime, “pushing bodies into orbit through geometry.” It’s interesting that he uses “pushing” as opposed to the pulling of gravity’s attractive force.
Lewin believes that Newton is the greatest physicist of all time (Einstein is next) because “his discoveries were so fundamental and so diverse.”
Though the universe’s age is estimated to be “about” 13.7 billion years old, Lewin writes that “the edge of the observable universe is about 47 billion light-years away from us in every direction.” This is because space has “expanded enormously since the big bang,” noting Hubble’s law (“the velocity at which galaxies move away from us is directly proportional to their distance from us. The farther away a galaxy is, the faster it is racing away.”)
Lewin clarifies the somewhat confusing free fall terminology: “Free fall is when the force acting upon you is exclusively gravitational, and no other forces act on you.”
The author writes that less that 20% of an airplane’s lift due to the shape of the wing where the air passing above the shaped wing speeds up relative to the air passing underneath. (Bernoulli’s principle). Reactive lift accounts for the rest (80% or greater). It is named for Newton’s third law. It occurs when air, “moving from the front of the wing to the back, is pushed downward by the wing. That’s the ‘action.’ That action must be met by an equal reaction of air pushing upward, so there is upward lift on the wing.” Controlling reaction lift is tricky, he states, especially at takeoffs and landings.
“Interstellar and intergalactic space,” Lewin writes, “are millions of times closer to a vacuum than the best vacuum we can make on Earth.” But, even so, space is not empty. Matter that floats “around in space has…identifiable characteristics,” which is plasma (ionized gasses – charged particles “such as hydrogen nuclei [protons] and electrons-of widely varying density.”) Lewin goes on the state that “more than 99.9 percent of all observable matter in the universe is plasma.”
On a night flight from the northeastern U.S. to Europe, sit on the left side of the airplane to see the aurora Borealis (northern lights – where the sun’s charged particles (solar wind) are directed into our atmosphere at the magnetic poles.
“The temperature at the core of our own sun…produces energy at a rate equivalent to more than a billion hydrogen bombs per second.”
In a supernova core collapse, “the pressure in the core can no longer hold out against the powerful pressure due to gravity, and the core collapses onto itself, causing an outward supernova explosion….The core collapses in milliseconds, and the matter falling in -- it actually races in at fantastic speeds, nearly a quarter the speed of light – raises the temperature inside to …about ten thousand times hotter than the core of our Sun.” Lewin also writes that “a core-collapse supernova emits two hundred times the energy that our sun has produced in the past 5 billion years, and all that energy is released in roughly 1 second—and 99 percent comes out in neutrinos!”
After some supernova core collapses, neutron stars are formed as remnants, with mass 1.4 times the sun’s tightly compacted into a city size space, and that “a teaspoon of neutron matter would weigh 100 million tons on Earth.” The neutron star in the Crab Nebula rotates 30 times a second; the fastest known neutron star rotates at 716 times per second.
After other supernova core collapses, a black hole is formed. At the center of a black hole lies a singularity, “a point with zero volume and infinite density.”
A third of the stars in the night sky are actually binary stars (“binaries”). Sirius, “the brightest star in the sky,” is a “binary system made up of two stars known as Sirius A and Sirius B.”
The Earth and the Moon are a binary system. “If you draw a line from the center of the Earth to the center of the Moon, there is a point on that line where the gravitational force toward the Moon is equal but opposite to the gravitational force toward the Earth.” What’s interesting about this statement is that “relative intensity” beyond any exact balance point seems inherent to gravitational and electromagnetic forces.
Lewin writes that gravity distorts the fabric of spacetime, “pushing bodies into orbit through geometry.” It’s interesting that he uses “pushing” as opposed to the pulling of gravity’s attractive force.
February 19, 2023
As Walter Lewin himself says, the aim of this book is not to show the reader a single tree but rather the entire forest; and this the book does amazingly!
Having last studied coursework science almost 6 years ago (12th std) this was a great book to jog my memory and refresh critical aspects of popular physics. The topics covered in the book are motion, harmonics, electricity-magnetism and astrophysics.
Every chapter and every physics aspect is explained through a mix of theory and experimentation. Many of the experiments mentioned in the book are those that Lewin would perform in his MIT classes.
Several aspects of Lewin's academic career - especially pertaining to X-ray ballooning - are intertwined with some of the chapters.
One lacuna of the book is the writing style - it seems quite mediocre in most places. Nonetheless, a great read if you're a high school student, or if you're someone like me who wants to revisit high school physics concepts (and popular astrophysics) over the weekend.
A 4/5 read.
Having last studied coursework science almost 6 years ago (12th std) this was a great book to jog my memory and refresh critical aspects of popular physics. The topics covered in the book are motion, harmonics, electricity-magnetism and astrophysics.
Every chapter and every physics aspect is explained through a mix of theory and experimentation. Many of the experiments mentioned in the book are those that Lewin would perform in his MIT classes.
Several aspects of Lewin's academic career - especially pertaining to X-ray ballooning - are intertwined with some of the chapters.
One lacuna of the book is the writing style - it seems quite mediocre in most places. Nonetheless, a great read if you're a high school student, or if you're someone like me who wants to revisit high school physics concepts (and popular astrophysics) over the weekend.
A 4/5 read.
reference
August 10, 2022https://www.simonandschuster.com/book... bookpage publisher
Yesterday (2022 0809 tu 15:11 cest) I got a friendschip request.
Comparing today my books with Hari Kumar I strumbled in the 20 skip list (no 7) on this title.
عابد فتال gives the publisher's bookpage on which you can read chapter 1 ( in his answer to a download question .
Highly recommended.
September 11, 2020
From electric jolts in winter, the science of rainbows....to the depths of the ocean (pressure) and to the fullest extent of the universe, the book covers it all so beautifully while walking along Prof. Lewin and his works. A wonderfully written and a must read for any science enthusiast, to say the least.
"There is a intrinsic beauty in everyday things" and I am sure you'll appreciate it more after this book.
PS: you will definitely think twice before picking your seat in a flight now.
"There is a intrinsic beauty in everyday things" and I am sure you'll appreciate it more after this book.
PS: you will definitely think twice before picking your seat in a flight now.
May 28, 2024
Pre-read for my junior for next year. This is the spine text that his physics curriculum uses. It was super interesting! A lot of it was review but I also learned a lot I didn’t already know. The author is definitely excited about his topic and that makes it most interesting. Hopefully my kid enjoys it next year too.
July 20, 2018
книга дуже круто написана! тепер я постійно вишукую веселку і знаю купу різних кумедних штку. Прямо захотілося і відео подивитися більше, і про автора почитати.
почитала. ну, і нащо я то зробила?
почитала. ну, і нащо я то зробила?
February 1, 2020
Книга старого фізика, який захоплюється і часом навіть вихваляється своєю роботою. Цікавими фактами і простими прикладами він пояснює фізичні явища і намагається передати своє захоплення усім охочим. Приємним плюсом є посилання на додаткові матеріали і відео, а також ілюстрації описаних явищ. Однак, захоплюючись цим, автор у своїй оповіді часто переходить на розповіді про щось віддалене від науки, до своїх вражень, бачень світу і думок. Можливо якраз це і робить оповідь цієї книги легкою, але взявшись за читання очікуєш побачити більше фізики а не особистих вражень автора.
Currently reading
April 20, 2021How can you not talk about something which made you smile when something was uncertainly hurting you!
I was sad! Sad and Serene! And then prof Lewin and Prof Goldstein came in, came with their magical admirable " 𝐅𝐨𝐫 𝐓𝐡𝐞 𝐋𝐨𝐯𝐞 𝐎𝐟 𝐏𝐡𝐲𝐬𝐢𝐜𝐬 : 𝐅𝐫𝐨𝐦 𝐭𝐡𝐞 𝐄𝐧𝐝 𝐨𝐟 𝐭𝐡𝐞 𝐑𝐚𝐢𝐧𝐛𝐨𝐰 𝐭𝐨 𝐭𝐡𝐞 𝐄𝐝𝐠𝐞 𝐨𝐟 𝐓𝐢𝐦𝐞 --- 𝐀 𝐉𝐨𝐮𝐫𝐧𝐞𝐲 𝐓𝐡𝐫𝐨𝐮𝐠𝐡 𝐭𝐡𝐞 𝐖𝐨𝐧𝐝𝐞𝐫𝐬 𝐨𝐟 𝐏𝐡𝐲𝐬𝐢𝐜𝐬 "! Just as Prof Michio Kaku! Watched them throughout the day on YouTube with their all the gigantic powers of teaching and demonstration and showing physics, making physics just what it's meant to be and supposed to be all of us! And then their life - living books!
Books, change how you see through ;
Books, make you smile - a sobering smile on your cheeks through the whole passages of that reading journey and after that all the time something makes you remember what you've found ;
Books, make you something ;
📖 𝗙𝗿𝗼𝗺 𝗧𝗵𝗲 𝗜𝗻𝘁𝗿𝗼𝗱𝘂𝗰𝘁𝗶𝗼𝗻 :
Walter Lewin creates magic when he introduces the wonders of physics. What’s his secret? “I introduce people to their own world,” he says, “the world they live in and are familiar with, but don’t approach like a physicist—yet. If I talk about waves on water, I ask them to do certain experiments in their bathtubs; they can relate to that. They can relate to rainbows. That’s one of the things I love about physics: you get to explain anything. And that can be a wonderful experience—for them and for me. I make them love physics! Sometimes, when my students get really engaged, the classes almost feel like happenings.”
I was sad! Sad and Serene! And then prof Lewin and Prof Goldstein came in, came with their magical admirable " 𝐅𝐨𝐫 𝐓𝐡𝐞 𝐋𝐨𝐯𝐞 𝐎𝐟 𝐏𝐡𝐲𝐬𝐢𝐜𝐬 : 𝐅𝐫𝐨𝐦 𝐭𝐡𝐞 𝐄𝐧𝐝 𝐨𝐟 𝐭𝐡𝐞 𝐑𝐚𝐢𝐧𝐛𝐨𝐰 𝐭𝐨 𝐭𝐡𝐞 𝐄𝐝𝐠𝐞 𝐨𝐟 𝐓𝐢𝐦𝐞 --- 𝐀 𝐉𝐨𝐮𝐫𝐧𝐞𝐲 𝐓𝐡𝐫𝐨𝐮𝐠𝐡 𝐭𝐡𝐞 𝐖𝐨𝐧𝐝𝐞𝐫𝐬 𝐨𝐟 𝐏𝐡𝐲𝐬𝐢𝐜𝐬 "! Just as Prof Michio Kaku! Watched them throughout the day on YouTube with their all the gigantic powers of teaching and demonstration and showing physics, making physics just what it's meant to be and supposed to be all of us! And then their life - living books!
Books, change how you see through ;
Books, make you smile - a sobering smile on your cheeks through the whole passages of that reading journey and after that all the time something makes you remember what you've found ;
Books, make you something ;
📖 𝗙𝗿𝗼𝗺 𝗧𝗵𝗲 𝗜𝗻𝘁𝗿𝗼𝗱𝘂𝗰𝘁𝗶𝗼𝗻 :
Walter Lewin creates magic when he introduces the wonders of physics. What’s his secret? “I introduce people to their own world,” he says, “the world they live in and are familiar with, but don’t approach like a physicist—yet. If I talk about waves on water, I ask them to do certain experiments in their bathtubs; they can relate to that. They can relate to rainbows. That’s one of the things I love about physics: you get to explain anything. And that can be a wonderful experience—for them and for me. I make them love physics! Sometimes, when my students get really engaged, the classes almost feel like happenings.”
August 12, 2018
People get into physics after they have seen some cool demos, or after they've been explained some of the really fun stuff around us. They start studying physics, their quest to understanding the language of the universe. Their quest of conversing with the universe.
But after embarking on the journey, most of them lose sight of their goal. They're so busy conversing in the language of the universe that they forget about their own language. They forget to look around and see what the universe is telling them. Not just writing a bunch of equations that make no sense to anyone.
My journey has just been like that, and I thank Professor Lewin for re-opening that eye I had lost. The eye to see the beauty of the universe. The eye to see the reality hidden beneath the abstract mathematical equations.
A very highly recommended book for anyone interested in physics. :)
But after embarking on the journey, most of them lose sight of their goal. They're so busy conversing in the language of the universe that they forget about their own language. They forget to look around and see what the universe is telling them. Not just writing a bunch of equations that make no sense to anyone.
My journey has just been like that, and I thank Professor Lewin for re-opening that eye I had lost. The eye to see the beauty of the universe. The eye to see the reality hidden beneath the abstract mathematical equations.
A very highly recommended book for anyone interested in physics. :)
February 5, 2016
This book was on Bill Gates' top book in 2011. Prof. Lewin's method of teaching should be adopted by all professors. He teaches physics by holding experiments in class, and backs them up with formulas. He teaches not to cover the details in physics, but to uncover the beauty of the world thru physics. Check out his experiments on YouTube, they are actually cool. The last quarter of the book went into too much technical details on his area of expertise: X-Ray - that was really torturous to get thru.
July 26, 2018
For all y'all McGill kids: Rated 2/5 Ken Ragans. A fun read, but no more than a rehashing of Phys 131 and 142 with more rainbows and without any calculus (honestly, it reads like the lecture transcripts). Too soon, still traumatized by the final exam, and therefore didn't enjoy it. I could see Amanda circa 2016 adoring this book though.
October 12, 2012
Entertaining and light. Insightful.
Want to read
August 6, 2020I am told this book will alter my perspective on physics...?
can't really see how that's EVER gonna be happening in the foreseeable future, but all things ("all things" being a euphemism for my rapidly deteriorating grades that'll inevitably snowball into some sort of self-destructive, life-affirming climax - because I AM SO NOT READY FOR MY BOARD EXAMS THEY'RE IN SIX MONTHS AND PHYSICS IS COMPULSORY SOMEBODY WALTER LEWIN HELP ME - naturally) considered, it's worth a shot, right?:/
(and yeah I'm pretty much desperate at this point)
and I am CALLING IT - if this book ends up romanticizing how "practical" or "all-encompassing" or "naturally observable" physics is, I will figuratively slam the goddamned thing across the room. why does everyone assume that the root cause of all the universal hate physics get is a deep-rooted fear of math??! I'm sick of everything wrong with the world being unanimously attributed to math! I just...I need SOMETHING to convince me that everything about the subject doesn't end in hopeless oblivion. I'll take anything. please.
counting on you (and every single member of your surprisingly ardent Reddit fanbase that will swear by every single word you've historically penned and actually managed to convince me - ME! - to read a book about physics in my precious free time), Mr. Lewin.
can't really see how that's EVER gonna be happening in the foreseeable future, but all things ("all things" being a euphemism for my rapidly deteriorating grades that'll inevitably snowball into some sort of self-destructive, life-affirming climax - because I AM SO NOT READY FOR MY BOARD EXAMS THEY'RE IN SIX MONTHS AND PHYSICS IS COMPULSORY SOMEBODY WALTER LEWIN HELP ME - naturally) considered, it's worth a shot, right?:/
(and yeah I'm pretty much desperate at this point)
and I am CALLING IT - if this book ends up romanticizing how "practical" or "all-encompassing" or "naturally observable" physics is, I will figuratively slam the goddamned thing across the room. why does everyone assume that the root cause of all the universal hate physics get is a deep-rooted fear of math??! I'm sick of everything wrong with the world being unanimously attributed to math! I just...I need SOMETHING to convince me that everything about the subject doesn't end in hopeless oblivion. I'll take anything. please.
counting on you (and every single member of your surprisingly ardent Reddit fanbase that will swear by every single word you've historically penned and actually managed to convince me - ME! - to read a book about physics in my precious free time), Mr. Lewin.
March 22, 2018
The author was deeply involved in X-ray astronomy research in the 1970s, and his narrative of his experiences is really fascinating. A few of the earlier chapters are a bit basic in terms of the physics concepts he covers (conservation of energy, Faraday’s law, etc.), but in the later chapters, he tells the story of how the field of X-ray astronomy grew, and in personal involvement. He talks a lot about Cyg X-1 and even mentions Tom Bolton and his discovery of the black hole at the Dunlop Observatory right here in Toronto (and Stephen Hawking’s bet!). There's also a good deal about his personal stories, like surviving the Holocaust and his enamoration with art.
I found the book really interesting and entertaining – and not what I expected; I thought it would be a pretty basic introduction to first-year undergrad physics and his MIT course, but was pleasantly surprised that he talks a lot about his personal experiences as a physicist/astronomer at a very exciting time. There are some quite amazing stories in there.
I found the book really interesting and entertaining – and not what I expected; I thought it would be a pretty basic introduction to first-year undergrad physics and his MIT course, but was pleasantly surprised that he talks a lot about his personal experiences as a physicist/astronomer at a very exciting time. There are some quite amazing stories in there.
February 20, 2022
You can really feel the author's enthusiasm about physics while reading this book. His physics demonstrations in this book sound like fun and he adds enough details so you can recreate most of them if you want. I loved the chapter about rainbows because of his multiple deminstrations in that chapter. He also adds some humor and his own experiences in his book which makes it fun to read and prevents it from being dry.
Though one criticism I have for this book is that I disliked that he had links in his book. It might be ok in digital copies of the book but it is jarring to read a web/youtube URL in a physical book. Especially since if I want to watch that video I would have to put the book down and search for it online. Instead of having the URL, he could have written an in-depth description of the events of the video and maybe some photos/diagrams, then the video URL could be put in one of the appendixes.
Though one criticism I have for this book is that I disliked that he had links in his book. It might be ok in digital copies of the book but it is jarring to read a web/youtube URL in a physical book. Especially since if I want to watch that video I would have to put the book down and search for it online. Instead of having the URL, he could have written an in-depth description of the events of the video and maybe some photos/diagrams, then the video URL could be put in one of the appendixes.
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