Reading Without Writing is Daydreaming

We help you create an online notebook for free. In it you can share what you learn and organize your thoughts. An online notebook helps you to make sure that you never forget anything again and it's a perfect method to stay organized. Oh... and possibly you help hundreds of others who can read your notes online!
Existing Notebooks ▷ Publish Your Own Physics Notes ▷
Feynman told us a few times to keep notebooks. When working on a hard problem, spend hours of concentrated time. People who don't think for hours without interruption cannot solve hard problems in his opinion. When you stop, try to save your mental state in the notebook. Learn to write notes that allow you to pick up your train of thought. In this way, days of sustained thought could be brought to bear on an extremely hard problem.

Why keep an online notebook?

Deepen Your Understand

Writing down your thoughts in a non-formal but structured way helps immensly to understand things more clearly.

Help Others

The best way to learn is to read the notes of someone who wrote them down while he learned the topic.

Access Everywhere

When your physics notes are available online you can read and edit them anytime from everywhere.

A) Do it yourself

Setting up your own online notebook is easy and we have written a detailed how-to guide to help you get started.

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B) Let us do it for you

Not everyone has webspace and the necessary time available. Thus we are happy to host your physics notes completely free on our server.

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Some further thoughts on online notes:

John C. Baez:

"My introduction to blogging came in 1993 when I started an online column called “This Week’s Finds in Mathematical Physics”. The idea was to write summaries of papers I’d read and explain interesting ideas. I soon discovered that when I made mistakes, readers would kindly correct them—and when I admitted I didn’t understand things, experts would appear from nowhere and help me out. Other math bloggers report similar results" Source

From the description of the nLab

"We all waste too much time with searching for mathematical information that is already out there. As a student, before the dawn of the internet, I wasted days in the library, on chasing references to the secrets of the universe. Now the internet exists, but we still waste time searching randomly. Things have not been connected. [...] Sometimes I see people proudly show me their private maths notebooks. Too bad that only one single person is profiting from it. We are an army of wheel-reinventers. (That’s necessary to some extent for personal exercise, but we’ll get nowhere if every single person retraces every single step. That has ended being sensible several hundred years ago.)" Source
C. S. Lewis in Reflections on the Psalms: “It often happens that two schoolboys can solve difficulties in their work for one another better than the master can. […] The fellow-pupil can help more than the master because he knows less. The difficulty we want him to explain is one he has recently met. The expert met it so long ago he has forgotten. He sees the whole subject, by now, in a different light that he cannot conceive what is really troubling the pupil; he sees a dozen other difficulties which ought to be troubling him but aren’t.”