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Motion Mountain Physikverein
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We publish the free Motion Mountain Physics Textbook.
We publish the free Motion Mountain Physics Textbook.

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Motion Mountain Physikverein's posts

Physics is more fun when it is told that it is the science of motion. An example of the fun involved is the simplest electric train possible, ususing just a coil, a battery and two magnets. It is shown in the video collection:

www.motionmountain.net/videos.html

Enjoy.

Christoph Schiller

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The free 2017 edition of the Motion Mountain Physics Book series is now online at

http://www.motionmountain.net

These free pdf volumes now present the bouncing ball puzzle and the six match puzzle, provide details about the Moon's orbit, explain new results on the rheology of blood, add a photograph of the shadow of the Earth at the South Pole, tell more about flower symmetry, present the maximum possible Laypunov exponent, explain that usual light bulbs produce speeds faster than light when switched on, explain how to multiply with fingers, have more fun with quantum physics and colours, and much more.

The pdf files promise to be entertaining and surprising on every page. Enjoy!

Christoph Schiller

P.S. An updated full colour paper edition, and updated black-and-white paper edition, and a kindle edition are available.

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Dear Physics Friend,

edition 29 of the free pdf physics text is now online at

http://www.motionmountain.net

The five textbook volumes now contain a movie of the heart beat of a mouse embryo and high-resolution images of the human retina taken with optical coherence tomography, warn about the dangers of inhaling helium, tells how to count the molecules in air by looking at a distant mountain, include the weight puzzle, the fuse puzzle and curiosities about relativistic
relative velocity, tell how to make floating water bridges, tell more on the reduced drag experienced by a bicycle rider when a motorcycle rides just behind him, explain the motion of trees when they wake up in the morning (no joke), describe the dangers of electric eels, tell about knots in field lines, pose the puzzle about the tongues of flying dragons, tell about the electronium model of atoms, present the puzzle of the parabola of safety, explain what physicists have in common with smurfs, tell about the electric fields in and around plants, introduce the lowest known acceleration, propose the brick thread puzzle, present the polhode, the polar motion of a tumbling brick, the animal symmetry puzzle, include several new and stunning images of the Sun, and much more.

The additional sixth volume on physics research has been updated.

Enjoy!


Christoph Schiller


P.S: Thank you to all readers for the many corrections and suggestions, and to all supporters for the permissions to use images and films.

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http://www.motionmountain.net/electromag.html

Volume III - on light, electricity, magnetism and the brain - has been improved and expanded with many new topics, including, for example, an OCT film of the beating heart of a mouse embryo.



The pdf is free, as always. Enjoy!


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The volume on relativity of Motion Mountain, the free physics textbook, is now available in Japanese, thanks to the admirable work by Megumi Hirooka:

Free download of the pdf file, with colour films and images, is possible from http://www.motionmountain.net/japanese.html

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Fun puzzles with electromagnetism: the freely downloadable Motion Mountain Physics Text is full of it. Here is an example: you can be a magnetically levitated bed for over a million dollars (shown below). Is this physically possible?



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Look at this animation and experience the fascination of the belt trick and of tethered rotation:

http://entropygames.net/images/dodecatwist.gif

Thank you to Jason Hise for producing this and for allowing me to use it in the first volume of the Motion Mountain Physics Text.

Two similar animations from Jason are found in the sixth volume, where it is explained that such tethererd rotations are used in blood platelet extraction machines. Tethered rotations thus save many lives a day.

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A wonderful and surprising video: www.youtube.com/watch?v=UtdljdoFAwg

Did you know that a ball glued to an infinitely flexible sheet can be rotated continuously and for ever, if done properly?

Enjoy!

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The free physics pdfs allow every reader to add yellow stickers: comments, criticism, or corrections.

Recently I received a large number of them back, and used them to improved the readability of the book. The new edition is now online, as always for free and anonymous download, from the site www.motionmountain.net .

The pdfs promise wonder and thrill on every page, as well as fun and surprises on every page! Learn about the strange properties of the human eye, about the picture on the wall riddle, about the strange family life of Erwin Schrödinger, the ways some caterpillars get rid of their frass, obviously also about gravitational waves, and much more.


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