Enjoy an Entertaining and Free Pdf Book on Physics, the Science of Motion:

zip pdf Free download of the 5 pdf volumes of the Motion Mountain Physics Textbook. The 2020 edition, a single zip file with ca. 520 MB, is in full colour and contains many films, stories and facts: every one of the over 2000 pages is wonderful and captivating.

Motion Mountain Physics Textbook cover Motion Mountain Physics Textbook page 148 Motion Mountain Physics Textbook page 136 Motion Mountain Physics Textbook page 91

This is an open textbook and a free textbook at the same time: A free pdf textbook for download.

Explore the motion of plants, animals, lightning, satellites, charges, light and empty space itself! Be fascinated by molecular motors, black holes, the beauty of nature and the simplicity of how it works: Explore the principle of cosmic laziness – least action –, the maximum speed, the largest distance, the highest power, and gauge symmetry, the symmetry that explains electric motors, radioactivity and quarks!

The original English edition has been improved for over 28 years. Various volumes are available in Serbian, Arabic, French, Italian, Japanese, Vietnamese and Spanish. All are free.

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The text is a free physics manual and workbook, expanding notes that provide a free introduction to physics. But above all, the text is a guide to enjoying physics and nature.

Find out what fireworks, mobile phones and butterflies have in common, how muscles work, how colours appear, how levitation is possible, why we can see the stars, and which problems in physics are still unsolved. Enjoy many wonderful puzzles about nature. Read about the great advances in our understanding of the processes that surround us. Learn how the story of the universe shapes our night sky, the Sun, our landscape, our bodies and all the atoms that make it up. Find interesting experiments to repeat. Explore the power of the concepts that are used in physics. If you are between the age of 16 and 106, you will enjoy reading this physics book. These videos show why. If you want even more motivation and an even longer overview of the wonderful stories and adventures that await you, read this section.

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The volumes of the 2019 edition tell about the new SI unit definitions, show how to rotate a ball glued into a soft mattress for ever and ever - and challenge you to be the first to film this feat; they also show how to create floating images with a simple toy, explain that usual light bulbs produce speeds faster than light when switched on, tell about why it is correct to say that the sun has already set when we see it just touching the horizon in the evening, challenge you to build a high-precision ball-chain (`Newton's cradle'), show that a formula for pi is hidden in the hydrogen spectrum, provide more fun with quantum physics and colours, tell about noise-producing plants, ask about the Spanish burton and the fool's tackle, present the measurement unit for the spiciness of chili peppers, and present many other stunning images, facts and stories about motion of things, shadows, light, stars, planets, black holes and quantum particles.

Download the files separately here:

Physics pdfFree download of volume I - FALL, FLOW AND HEAT         (260 MB).

Physics pdfFree download of volume II - RELATIVITY AND COSMOLOGY         (50 MB).

Physics pdfFree download of volume III - LIGHT, CHARGES AND BRAINS         (80 MB).

Physics pdfFree download of volume IV - THE QUANTUM OF CHANGE         (38 MB).

Physics pdfFree download of volume V - MOTION INSIDE MATTER: PLEASURE, TECHNOLOGY AND STARS         (85 MB).

Motion Mountain is written for pupils, students, teachers and anybody curious about nature: the text is full of telling anecdotes, captivating riddles, unusual tables, astonishing photographs and beautiful films. It has been downloaded over 400 000 times.

An Introduction to Modern Physics: relativity and quantum physics, cosmology and particles, optics and modern mechanics, technology and biophysics

Entertaining and surprising on every page, the five pdf files tell about

  1. Sport, raindrops and animal life: mechanics, gravity and heat,
  2. Moving empty space and the sky at night: relativity and the structure of the universe,
  3. Lightning, lasers and nerves: electricity, optics, the brain, language and truth,
  4. Colours and the quantum of change: quantum physics and light quanta.
  5. Pleasure and the stars: biophysics, nuclear physics and radioactivity.

Prizes and rewards are offered for solving a number of challenges and for helping to improve the text.

News. Motion Mountain occasionally twitters at https://twitter.com/PhysicsFree.