The Feynman Lectures on Physics

The Feynman Lectures on Physics

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  • Create Date:2022-10-09 06:54:34
  • Update Date:2025-09-06
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  • Author:Richard P. Feynman
  • ISBN:0465023827
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Summary

The legendary introduction to physics from the subject's greatest teacher

"The whole thing was basically an experiment," Richard Feynman said late in his career, looking back on the origins of his lectures。 The experiment turned out to be hugely successful, spawning a book that has remained a definitive introduction to physics for decades。 Ranging from the most basic principles of Newtonian physics through such formidable theories as general relativity and quantum mechanics, Feynman's lectures stand as a monument of clear exposition and deep insight。 Now, we are reintroducing the printed books to the trade, fully corrected, for the first time ever, and in collaboration with Caltech。 Timeless and collectible, the lectures are essential reading, not just for students of physics but for anyone seeking an introduction to the field from the inimitable Feynman。

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Reviews

Darshit

One of the best books on Physics ever written。 The concepts are rigorously explained, very entertaining to read, and give many insights about the subject。 You can say it is the Bible of Physics!

Sysi

habe mal den ersten band gelesen, hat eine ganze weile gedauert und habe auch nicht komplett alles immer 100% gecheckt aber war sehr interessant

Lainmi

Great book

Artsalnov

Наверное я слишком завысил ожидания от книги, верил, что удивит, так удивит)Ан нет… как такое может «зажечь» не совсем ясно, может Фейнман хорошо вёл лекцию лично, так сказать харизмой брал, но в тексте это как-то не цепляет。Ребёнку такое не посоветуешь。 Сочувствующим гуманитариям не порекомендуешь。Взрослым (состоявшимся) технарям наверно будет вообще скучно。Короче, так и не понял на кого рассчитаны сии лекции。

Dylan Kennedy

These books awakened my love for the natural world。 I don't think I could overstate what they mean to me。 These books awakened my love for the natural world。 I don't think I could overstate what they mean to me。 。。。more

Quentin H

Thanks to that book, it allowed me to understand magnetostatics and the application of that magnetic field of a solenoid。 It also helped me to understand the applications of Gauss’ Law, Ampère’s law and the law of Biot and Savart。 I highly recommend it!

Dale Alan Bryant

I got out of it what I could grasp。 Sadly - I gave it up, however, when I found, that, the math, and ideas, ceased to be intuitive for me。 (NOT, the fault of the author!)

Dan

Feynman lectures on physicsThis book of more than fifty chapters was first published more than fifty years ago。 There is a fair amount of math as it quickly covers the core topics found in an undergraduate physics or electrical engineering curriculum。 With the exception of some of the thermodynamics sections which were new to me, I found the material to be a good refresher course for those engineers or physicists who remember a good deal of the math and have a fondness for equations。 Here are so Feynman lectures on physicsThis book of more than fifty chapters was first published more than fifty years ago。 There is a fair amount of math as it quickly covers the core topics found in an undergraduate physics or electrical engineering curriculum。 With the exception of some of the thermodynamics sections which were new to me, I found the material to be a good refresher course for those engineers or physicists who remember a good deal of the math and have a fondness for equations。 Here are some notes。 Asterisked sections are not found in the book but my from my own understanding。 There are four fundamental forces in Physics1。 Nuclear force -- strength =1, mesons to baryons2。 Electromagnetic force -- strength = 10E-2, between nuclei and electrons, related to chemical bond strengths3。 Weak decay -- strength = 10E-5, beta decay, involve quarks and long decay times4。 Gravity -- strength = 10E-40, universal but extremely weak at the atomic level。 *Now there is evidence to about 4 9s of confidence that there is a very weak fifth force involving muons that is stronger than gravity and weaker than beta decay。 This was found in LHC tests in 2021 using high energy collisions where fewer muons than electrons resulted from the collisions。 It is was expected that the number of muons created would match the number of electrons。 This finding is exciting (although not statistically at the level of five 9s required for adoption to a law) because it is intuited by many particle physicists that there are other forces beyond the standard model needed to adequately explain dark matter and other discrepancies such as an accelerating expansion of the universe。 Muons have mass about 200x greater than electrons and decay rather slowly on the millisecond level。 Electric field forces fall off as the third power which helps to explain why they have small effect on large distances。 And combined with the fact that it is unlikely that all of the electrons and protons would be lined up in opposition over greater distances makes gravity not electromagnetic force the dominant at great distances Enzymes are a type of protein。 They are big and somewhat complex。 GTP and GDP are two very important enzymes because GTP can turn into GDP with water and a few other enzymes which fires muscle contractions。 Not terribly relevant to physics but the section was interesting nonetheless。 Half lives and decay。 The half life of a proton is more than the age of the universe。 The half life of a U238 atom is more than the age of the earth。 There are also strange subatomic particles where the decay rate is 10E-24 seconds。 Carbon 14 dating works up to about 100,000 years。 To measure old rocks we use uranium and lead isotopes is a similar manner that go back billions of years。 The age of the earth and the age of many meteorites found on earth are the same age which indicates that the earth was formed by meteorites。 *The Milky Way Galaxy is about 52,000 light years wide。 The galaxy GN-z11 seems to be the farthest detectable galaxy from us, at 13。4 billion light-years。 The radius of a nucleus vs the universe is about 42 orders of magnitude。 Heisenberg's Uncertainty Principledelta_x*delta_p >= h/(4*pi)As an object approaches absolute zero it does not mean the subatomic particles cease to have momentum The random walk principle as applied to uncertainty of heads vs trails surrounding 。5 probability is +/- 1/(2*sqrt(N))。 So if N tosses is 9 then uncertainty is 。16。 If N=100 then uncertainty is 。05 and if N = 1,000,000 then 。0005。 Gravitational forceF=Gmm'/(r^2)Keplers law states each planet moves in an elliptical path around the sun and that the square of their orbital periods are proportional to the cube of the semi-major axis。 With the principle of relativity m=Mo/sqrt(1 - v^2/c^2)The Lorentz transformations for time dilation is similar。 T = To/(sqrt(1-v^2/c^2))Bremsstrahlung helps describe radiation derived from from electrons。Doppler effect also applies to electromagnetic waves and explains the red shifting of distant stars and galaxies which are moving away from us。 The effects are relativistic。 The latter 1/3 of the book covers more miscellaneous topics such as radiation, gases, kinetic theory, thermodynamics。 Much of these sections involve a fair amount of calculus and statistical theory。 4 stars。 A dated but quite famous book in academia with heavy emphasis on formulae。 。。。more

Harry Harman

Prof。 R。 P。 Feynman at the California Institute of Technology during the academic year 1961-62ab initioeuclidean geometryIf, in some cataclysm, all of scientific knowledge were to be destroyed, and only one sentence passed on to the next generations of creatures, what statement would contain the most information in the fewest words? I believe it is the atomic hypothesis (or the atomic fact, or whatever you wish to call it) that all things are made of atomsparameciaThe atoms are 1 or 2 X 10-8 cm Prof。 R。 P。 Feynman at the California Institute of Technology during the academic year 1961-62ab initioeuclidean geometryIf, in some cataclysm, all of scientific knowledge were to be destroyed, and only one sentence passed on to the next generations of creatures, what statement would contain the most information in the fewest words? I believe it is the atomic hypothesis (or the atomic fact, or whatever you wish to call it) that all things are made of atomsparameciaThe atoms are 1 or 2 X 10-8 cm in radius。 Now 10-8 cm is called an angstrom (just as another name) pressure times the area is the force)。 Clearly, the force is proportional to the area, for if we increase the area but keep the number of molecules per cubic centimeter the same, we increase the number of collisions with the piston in the same proportion as the area was increased。Most simple substances, with the exception of water and type metal, expand upon melting, because the atoms are closely packed in the solid crystal and upon melting need more room to jiggle around, but an open structure collapses, as in the case of water。Helium, even at absolute zero, does not freeze, unless the pressure is made so great as to make the atoms squash together。 If we increase the pressure, we can make it solidify。Therefore there are more going out than coming in, and the water evaporates。 Hence, if you wish to evaporate water turn on the fan!Of course when there is no net evaporation the result is nothing—the water is not changing temperature。 If we blow on the water so as to maintain a continuous preponderance in the number evaporating, then the water is cooled。 Hence, blow on soup to cool it! the crystal is not made of atoms, but of what we call ions。 An ion is an atom which either has a few extra electrons or has lost a few electrons。 In a salt crystal we find chlorine ions (chlorine atoms with an extra electron) and sodium ions (sodium atoms with one electron missing)。By equilibrium we mean that situation in which the rate at which atoms are leaving just matches the rate at which they are coming back。precipitation Most substances dissolve more, but some substances dissolve less, as the temperature increases。 carbon attracts oxygen much more than oxygen attracts oxygen or carbon attracts carbon。 Therefore in this process the oxygen may arrive with only a little energy, but the oxygen and carbon will snap together with a tremendous vengeance and commotion, and everything near them will pick up the energy。 A large amount of motion energy, kinetic energy, is thus generated。 This of course is burning; we are getting heat from the combination of oxygen and carbon。 The heat is ordinarily in the form of the molecular motion of the hot gas, but in certain circumstances it can be so enormous that it generates light。 That is how one gets flames。If we burn the carbon with very little oxygen in a very rapid reaction (for example, in an automobile engine, where the explosion is so fast that there is not time for it to make carbon dioxide) a considerable amount of carbon monoxide is formed。 The six carbons which form a ring do not form a flat ring, but a kind of "puckered" ring。 All of the angles and distances are known。 we see a "ring" of six carbons, and a "chain" of carbons hanging on the end So we can appreciate that the chemical names must be complex in order to be complete。 You see that the name of this thing in the more complete form that will tell you the structure of it is 4-(2, 2, 3, 6 tetramethyl-5cyclohexanyl)-3-buten-2-one, and that tells you that this is the arrangement。 if we look at very tiny particles (colloids) in water through an excellent microscope, we see a perpetual jiggling of the particles, which is the result of the bombardment of the atoms。 This is called the Brownian motion。the chemical properties of a substance depend only on a number, the number of electrons。 (The whole list of elements of the chemists really could have been called 1, 2, 3, 4, 5, etc。 Instead of saying "carbon," we could say "element six," meaning six electrons,A photon is never at rest, it is always moving at 186,000 miles a second。inorganic chemistry, the chemistry of substances which are not associated with living thingsWe have already discussed the difference between knowing the rules of the game of chess, and being able to play。 So it is that we may know the rules, but we cannot play very well In any chemical situation a large number of atoms are involved, and we have seen that the atoms are all jiggling around in a very random and complicated way。 If we could analyze each collision, and be able to follow in detail the motion of each molecule, we might hope to figure out what would happen, but the many numbers needed to keep track of all these molecules exceeds so enormously the capacity of any computer In their study of nerves, the biologists have come to the conclusion that nerves are very fine tubes with a complex wall which is very thin; through this wall the cell pumps ions, so that there are positive ions on the outside and negative ions on the inside, like a capacitor。 Now this membrane has an interesting property; if it "discharges" in one place, i。e。, if some of the ions were able to move through one place, so that the electric voltage is reduced there, that electrical influence makes itself felt on the ions in the neighborhood, and it affects the membrane in such a way that it lets the ions through at neighboring points also。 This in turn affects it farther along, etc。, and so there is a wave of "penetrability" of the membrane which runs down the fiber when it is "excited" at one end by stepping on the sharp stone。 This wave is somewhat analogous to a long sequence of vertical dominoes; if the end one is pushed over, that one pushes the next, etc。 Of course this will transmit only one message unless the dominoes are set up again; and similarly in the nerve cell, there are processes which pump the ions slowly out again, to get the nerve ready for the next impulse when the impulse reaches the end of the nerve, little packets of a chemical called acetylcholine are shot off (five or ten molecules at a time) and they affect the muscle fiber and make it contractall living things have a great many characteristics in common。 The most common feature is that they are made of cells, within each of which is complex machinery for doing things chemicallyIt is called the Krebs cycle, the respiratory cycle。these changes are relatively difficult to accomplish in a laboratory。 If we have one substance and another very similar substance, the one does not just turn into the other, because the two forms are usually separated by an energy barrier or "hill。" However, if we could literally take the molecules in our hands and push and pull the atoms around in such a way as to open a hole to let the new atom in, and then let it snap back, we would have found another way, around the hill, which would not require extra energy, and the reaction would go easily。 Now there actually are, in the cells, very large molecules, much larger than the ones whose changes we have been describing, which in some complicated way hold the smaller molecules just right, so that the reaction can occur easily。 These very large and complicated things are called enzymes。the most useful tool of all for analyzing this fantastically complex system is to label the atoms which are used in the reactions。 Thus, if we could introduce into the cycle some carbon dioxide which has a "green mark" on it, and then measure after three seconds where the green mark is, and again measure after ten seconds, etc。, we could trace out the course of the reactions。 What are the "green marks"? They are different isotopes。it is also known that little molecule pieces come off the DNA—not as long as the big DNA molecule that carries all the information itself, but like a small section of it。 This is called RNA, but that is not essential。 It is a kind of copy of the DNA, a short copy。 The RNA, which somehow carries a message as to what kind of protein to make goes over to the microsome; that is known。 When it gets there, protein is synthesized at the microsome。 That is also known。 However, the details of how the amino acids come in and are arranged in accordance with a code that is on the RNA are, as yet, still unknown。 We do not know how to read it。 If we knew, for example, the "lineup" A, B, C, C, A, we could not tell you what protein is to be made。 Certainly no subject or field is making more progress on so many fronts at the present moment, than biologyThe central problem of the mind, if you will, or the nervous system, is this: when an animal learns something, it can do something different than it could before, and its brain cell must have changed too, if it is made out of atoms。 In what way is it different?Dogs are easier to understand, but nobody yet knows how dogs work。The law is called the conservation of energy。 Imagine a child, perhaps "Dennis the Menace," who has blocks which are absolutely indestructible, and cannot be divided into pieces。 Each is the same as the other。 Let us suppose that he has 28 blocks。 His mother puts him with his 28 blocks into a room at the beginning of the day。 At the end of the day, being curious, she counts the blocks very carefully, and discovers a phenomenal law— no matter what he does with the blocks, there are always 28 remaining! This continues for a number of days, until one day there are only 27 blocks, but a little investigating shows that there is one under the rug—she must look everywhere to be sure that the number of blocks has not changed。 One day, however, the number appears to change—there are only 26 blocks。 Careful investigation indicates that the window was open, and upon looking outside, the other two blocks are found。In the gradual increase in the complexity of her world, she finds a whole series of terms representing ways of calculating how many blocks are in places where she is not allowed to look。 。。。more

Habeeb Alnaqi | حبيب النقي

I am using these big 3 volumes as a reference in most of my courses。 It touches almost all branches in theoretical physics。 His explanation, examples, approach, and insights is unmeasurably valuable!!The disadvantages is that it is very brief, and it lacks the deep mathematical analysis of the subjects。 I highly recommend for any undergraduate physics student to have it always by your side!

Jingyuan Ren

like the graphic viewpoints for conceptsone of my supervisors said one of his hobbies is reading Feynman's lectures haha like the graphic viewpoints for conceptsone of my supervisors said one of his hobbies is reading Feynman's lectures haha 。。。more

MaryC

One of the books I have enjoyed the most ever。 Especially the 2nd volume (on E&M)。

Manny

Goodreads Recommendation Engine! You do know how to get my attention, don't you? Goodreads Recommendation Engine! You do know how to get my attention, don't you? 。。。more

Teve

Verrrrr difficult but mind-expanding。 Don't try to read until you're several university classes deep。 Verrrrr difficult but mind-expanding。 Don't try to read until you're several university classes deep。 。。。more

Steven

Good pandemic reading, though his style and approach are unconventional。 I especially liked his approach to quantum and made it clearer than other texts of the time。

Topi

Iha tykki kamaa

Johan

Not for the faint of heart。

Jorden Barrow

It's a great book。 But what the fuck is Jen talking about It's a great book。 But what the fuck is Jen talking about 。。。more

Pablo Mro

Taught me most of the physics I know and as an electronics engineer I had planty of courses of it。

Omri Har-shemesh

One of the best textbooks for undergrad physics out there!

Felix Abdullayev

One of the top physics book for people who are interested in physics and physics students at colleges。 The lectures series book was given to me as a gift for my school graduation from my AP Physics teacher, Mr Bradley at New Castle High School (PA, USA)。 I believe that this book should be a must read for all pysics and scrinece related majors。 Moreover, if you are interested in developing your imaginative thnking, understanding theories from other fields, improving your critical thinking and sol One of the top physics book for people who are interested in physics and physics students at colleges。 The lectures series book was given to me as a gift for my school graduation from my AP Physics teacher, Mr Bradley at New Castle High School (PA, USA)。 I believe that this book should be a must read for all pysics and scrinece related majors。 Moreover, if you are interested in developing your imaginative thnking, understanding theories from other fields, improving your critical thinking and solving problems through logical principals - this book set is for you。 。。。more

Mahin

Gonna be in my currently-reading shelf for a loooong time。

Aakaash Gupta

Read in Class 11( beginning)

Jacob

This literally, unironically, took me a full year to read

Ronald Cohn

This is one of the classics。 I read it long ago when I was a graduate student。 I just gave a copy to my grandson, Marlen, as a birthday present

Marta T

Helped me through intro to physics in ways no instructor could!

Alan Chan

The older I get, the more I appreciate the beauty of Feynman's lectures。 The older I get, the more I appreciate the beauty of Feynman's lectures。 。。。more

V

A benchmark of introductory science books! After it I ended up writing search queries like this one: Books like Feynman Lectures on physics for chemistry, etc。

Infinite Jen

In keeping with my ghoulish experiments on the elasticity of Goodreads reviews, I have provided a handy dandy guide to would-be scientists who wish raid these three volumes for all their willy bits。 I have crafted a list of brain specifications for multi-tiered appreciation。 It’s worth noting that these lectures are uneven in terms of difficulty, and that someone without a background in mathematics can appreciate some sections, particularly in volume one, just for the conceptual upgrades that Fe In keeping with my ghoulish experiments on the elasticity of Goodreads reviews, I have provided a handy dandy guide to would-be scientists who wish raid these three volumes for all their willy bits。 I have crafted a list of brain specifications for multi-tiered appreciation。 It’s worth noting that these lectures are uneven in terms of difficulty, and that someone without a background in mathematics can appreciate some sections, particularly in volume one, just for the conceptual upgrades that Feynman is known sling with such frequency that, you might begin to suspect this inexhaustible supply is the result of communion with a Terrance McKenna style entity of animal crackers and Morphic Resonances。 But I digress, precipitously, to imitate what happens with the physics on offer, because they get steep, and you’re almost guaranteed to experience some nasty cyanosis if you have no grounding in numerical witchcraft。 It should go without saying that if you’re a Ramanujan type autodidactyl creature, or you share Feynman’s connubial bliss with McKenna-fauna, then you’ll find this specifications/ergregia cum laude all things Dick (Feynman), rather pedestrian。 But, before you go; a few comments。 First, that’s technically bestiality, even if your corporeal form remains in the lazy boy while your mind strokes Baphomet’s Caduceus。 Second, why you would deign to subject yourself to the meanderings of this little idiot is, perhaps, as baffling as your fetish for Éliphas Lévi’s imagery while high on Psilocybe azurescens。Minimum specs:A commitment to casting down all shibboleths of superstition regarding how loaves of bread move along incline planes。 The intestinal fortitude to accept that you will frequently find yourself out of your depth。 A willingness to avail yourself of other resources should you stumble over something so badly that your junk looks like an exploded hotdog。 A passion for understanding how the universe works。 High school algebra/physics。 A mental emetic for purging abstractions in the event that your neurons go critical。 A family member with an engineering background who can kindly offer advice (in my case; my dad。 Who was also very understanding when, as a wee lass, I took apart a barstool over the course of days by working the screws with my nubby fingers, hid the nuts and bolts in my mouth, then buried my head in the pillows of the couch。 A red flag behavior that persists to this day, indicating some bizarre oral fixation has been recently indulged, I urge you to keep your extrapolations pure, but you probably can’t help yourself now。)Medium specs:A willingness to work out many problems related to the topics being discussed (you’ll have to seek out supplementary material) in order to make sure you’re not just gaining superficial understanding。 Feynman can make things sound much easier than they actually are for us pudding brains。 It’s critical to do the work。 The lectures were intended for Caltech students, (no slouches, those), and, by Dick’s own admission, many of them became lost trying to drink from the fire hose。 You and trig need to be exchanging sexual favors on the reg。 College physics/calculus (differential equations for mechanics and dynamics, vector and multidimensional for electricity and magnetism)。 Controlled amounts of attention enhancing pharmaceuticals。 Someone willing to strike you with a kyōsaku (encouragement stick) when you find your mind wandering。 Partially digested coffee cherries freshly defecated by an Asian palm civet。High specs: Mescaline。 (100 mg mescaline hydrochloride (HCl), 111 mg mescaline sulfate or 85 mg mescaline freebase to establish foundation)。 Small Athame Ritual Dagger (for complex geometrical approximations)。 Altar constructed according to Fibonacci Sequence。 Serpentis Leviathan Cross Altar Tapestry Banner (self-explanatory)。 Sigil of Astaroth (there are some patches for this at any Hot Topic if you don’t have the resources to craft a shield)。 Lemegeton Goetia Ritual Circle (embroidered cloth or crude approximation drawn in earth at your own risk, as entities can be extremely detail oriented)。 Goth Long Matte Black Press On Nails Witchy Hecate Hex Halloween Horror (non-negotiable) Skull Bowl (you’ll probably want this in resin, as genuine human skulls often cast suspicion)。 Baphomet Horned God Goat Skull Ritual Goblet (assorted candies)。 Black Mini Taper Spell Candles (naturally)。 Brass Candle Snuffer With Wood Handle (classy)。 Cast Iron 6 Inch Wide Mouth Mini Cauldron (mostly vodka)。 Charcoal Tongs With Inscribed Pentacle (for the nips)。 Incense (mask scent of daemon smegma)。 An example ritual for summoning Maxwell’s Demon follows:Cast the CircleUsing your wand (athame, finger, slide rule etc。)。 Start in the north, envision you’re drawing up the quantum vacuum energy of the universe, coalescing in your ritual implement of choice, then, pointing said device toward the earth, draw down the collective bombardment of neutrinos in your local area。 (It’s perfectly normal if you don’t feel anything during this torrential rain of subatomic particles, but trust me, I have it on good authority that it’s happening。)Walk around once, saying:I conjure the Circle of Power, by my factorization and by my largest prime,I conjure the Circle of Power, a boundary between numerator and denominator;I conjure the Circle of Power, a sacred space for calculations;I conjure the Circle of Power, to shelter us from negative energies of innumeracy;I conjure the Circle of Power, to contain the derivatives and integrals within;By the powers above, and the powers below, I close this circle- so mote it be!The following chant for Maxwell’s Demon should be uttered in the likeness of Oppenheimer in the famous clip where he quotes the Bhagavad Gita。 Being performed garbed in the robe of black or clad with the sky。 At the hour of midnight upon the new of the moon within the circle of consicration [sic]。 Using the TEXAS INSTRUMENTS TI-36X PRO ENGINEERING/SCIENTIFIC CALCULATOR and the CELESTRON’S ADVANCED VX 8-INCH SCHMIDT-CASSEGRAIN TELESCOPE bring forth the watcher from the STATISTICALLY IMPROBABLE ABYSS。IA! IA!I DERIVE THEE FROM FIRST PRINCIPLES!Ageless violator of the second law of thermodynamics。I CALL THEE AGELESS ONE FORTH FROM THE STATISTICALLY IMPROBABLE ABYSSForever bouncing gas molecules。IGWA YTHALLA SHUGATHATHER!GR’THERA!IA! IA! IA! KUTHLUENHAL THULUK ENIKAR!BY THE PARTICLES EXCHANGED THROUGH THIS PARTITIONDEFY THERMAL EQUILIBRIUMENHAL THULAK ENIKAR!NARDAR THULHU RY’LEH KHEMARTERROR OF BOLTZMANN YOU ARE DRAWN FORTHAs of Bohr。MATERIALIZED FROM THOUGHT EXPERIMENTSAs of Einstein。BY THE WORDS OF THE VENERABLE LORD KELVIN AND JAMES CLERKBY THE COVENANT OF ROYAL SOCIETY。NEWTON THULAK ENIKAR!IA! AZAZAZA THULL GHARNA!BY THE WORDS OF SADI CARNOTBY THE COVENANT OF CLAUSIUS。Be one with usThe name of Maxwell compels thee。Be friendly unto the worshipers of the INTEGERS!Fuck fractionsA’Akhar m’lghuni! IA!VORISH NAA’KAVA!ENHAL THULAK ENIKAR! 。。。more

Andxyz

Very Long, Very entertaining