A poor Serbian village boy clashes with school authorities over his ethnic identity, accidentally ends up in late 19th century New York, struggles as an immigrant farm-hand, achieves a well-earned American education/citizenship and positions of influence and power with captains of industry by his well known scientific discoveries: the radio tuner and long distance telephone wire communication.

This book is remarkable for its depth of appreciation for American cultural values by a foreigner who deserves his American citizenship more than most Americans! Highly recommended to all immigrant Americans who question the worth of American values and to Americans who seem to have forgotten.

Also it is fascinating for students of physics who are interested in turn-of-the-century electromagnetic science and for those who seek a glimpse of Columbia University in 1880s.

This is a 'hard-to-read' book. The great mind builds up the world on his simple principles. He does not use his inventions that are now known as differentiation and integration. He only uses Euclid's geometry to build the world upon his three principles, with the majesty like God's. It's not so good as a course book for mechanics. He takes the hard but rigorous way than to take the way that is easy but yet lacks the rigour in his time. The Door to Heaven is narrow and hard to follow. But you can feel how a human mind can be great by just opening this book and look at the scratch of the lion's claw.

This is just a SUPER book! There are great photos of Mks I, II, III, and IV and of their componants, great material on Aiken, and this book imparts a lot of the feeling of the time. You get the feeling that if you were there, in Aiken's shoes, you'd have done things the same way - there were reasons for the use of relays as basic computing elements for instance. There's a great chapter by Grace Hopper, "Why The Mark I Is My Favorite Computer" and chapters on construction, programing, and so on. The book makes clear that Aiken was a man who believed in rolling up his sleeves and building a working machine that could be used, rather than, like Charles Babbage, just dreaming and never getting anything built. This made all the difference in the world; keep in mind that Babbage was the last person to try building a large general purpose calculator, and his failure kept the whole field in stasis for close to a hundred years. Aiken had a score to settle, and he settled it all right.

[...]
It was very difficult to grasp in Latin (I've had a try on it),
not that much easy in the Motte facsimile translation (I can assure it), and the Cajori-Motte edition was only half modernized and otherwise flawed.

This edition, sponsored by I.B. Cohen (the Latin editor) gives us a fresh, modern English translation of the text, and -almost as thick- a guide to using and reading this all-important book, which is not -as everybody is aware- an easy reader. One word of caution: Newton was, of course, (pace Leibnitz) the discoverer of calculus, but he doesn't use it here, but "more geometrico"
rigorous proofs, much in the style of that other genius of all ages, Archimedes. If you need help grasping the contents and impact of this work, then you must get some book like DENSMORE, D., Newton's Principia: The Central Argument (other auxiliary books are commented in the Guide potion of the book I'm reviewing).

I've seen bad reviews for master works of science in the past. Mostly they claim these books are either not clear or impossible to understand. Don't buy this book for the purpose of learning Classical Mechanics or Calculus from it, but for the scientific curiosity of learning how the great Isaac Newton presented his revolutionary scientific ideas to the world. Of course, it is difficult to read. This is a translation of a book written in Latin more than 300 years ago!

This book is a jewel. Just like the original works of Einstein, Maxwell, Heisenberg, Schroedinger and all those giants. Many of the ideas presented in the book were written for the first time in history and probably they are not organized in a didactic form. The person buying this book should not expect to find a clear textbook when originally it was not written for the layman, but for the expert scientific community of its time. Buy this book, sit back, scan through it, and enjoy a true piece of history.

Among a very select few others including the Bible and the Code of Hammurabi, this is one of the most important books ever written. This is where Isaac Newton first publicly put forth the calculus and the scientific method. A tremendous intellectual rupture that we are still dealing with, this book was indirectly responsible for historical shifts such as the Enlightenment and the Industrial Revolution. No mean feat.

The Principa is not an introductory calculus for the modern reader. It is written in Newton's own notational style. This style is different from the modern one, used in calculus today. The modern calculus notation system was devised by Leibniz. Newton's system of notation proved less useful than Leibniz's, and the better one has won out. Leibniz had independently discovered the calculus prior to the publication of Principia. Thus, Leibniz was not influenced by Newton's notational style. Leibniz's discovery of the calculus was made in secret on the continent several years after Newton had made his own secret discovery of it in Britain. Leibniz's work was published only after Newton's Principia was published. This led Newton to wrongly believe that his work had been stolen. An epic debate between the British and continental academies ensued with each side championing their man.

This book has enormous historical interest. For a person who is already educated in calculus, this book will take you to the source of the subject matter, the mouth of the Nile, so to speak. As for the scientific method, this is where it was conceived.

I found this to be a very enjoyable book written in a kind of history book style. There is enough information included to explain the discoveries of Newton and others without getting too technical. I read this book for a college paper on Newton's life.

I reckon the book gives a very good measure of Sir Isaac Newton's interests in philosophy. One shoulk ask why philosophy? Well we have to say that this writings contain some of the best arguments ever used in defense of God's existence. Moreover, the "Four letters to Mr. Richard Bentley" contain what should be considered the argument of "imperfection" for the existence of a Voluntary Agent in the Universe. Nobody before Newton dared to say that from the imperfection of this world it follows that God neccessarily exists. This argument will be, of course, a great subject for the criticism of Leibniz and Descartes' disciples. Then again, the book contains a very good paper on the natural and un-natural motion of celestial bodies, a very good treatise in itself on inertia and gravity, which makes us wonder whether our modern view on the universe is a Newtonian or a Cartesian one. After all the theme is very actual and it has not lost it's strenght.

Having done a Ph.D. in optics, I have read quite some books on optics and out of curiocity I bought this book, but I am not very pleased with it. First, it is difficult to read because of the old English language and structure. For native English speakers this carries perhaps not so much weight, but for me it did. Second, because it is a collection of Newton's works, it contains of course also many not-so-interesting discussions which you have to 'consume' before realising it was not so interesting.

What is nice though, is that the book contains many so-called queries, which are possible explanations of various optical phenomena, explanations/assumptions Newton could not prove/disprove at the time. This is fascinating reading, because many of these turned out to be true (or false, but even then: still interesting to know what he thought).

Overall impression: if you are interested in the history of optics/Newton then it is a nice book. But just for browsing in the evening: no.

"Though Mr. Newton is no physicist, his book is very interesting." -- Father Nicolas Malebranche (1707)