Reading books in public, copyright Can you read, not aloud, copyrighted material eg. Books, scientific papers in public eg bus, airplane, cafe, where other people can potentially read it/take picture?
Of course. Copyright law prevents you from making copies, and prevents others from making copies. It doesn’t oblige you to take extreme precautions against vague possibilities that others might break the law. And reading is not considered “copying”. So you don’t have to prevent others from reading your books at all.
Prompted by this recent similar question, I've revisited this question and deleted my original answer as it was completely off the mark. This is its replacement. It is illegal, and it turns out to be an international standard in the Berne Convention. Article 16 in full: (1) Infringing copies of a work shall be liable to seizure in any country of the Union where the work enjoys legal protection. (2) The provisions of the preceding paragraph shall also apply to reproductions coming from a country where the work is not protected, or has ceased to be protected. (3) The seizure shall take place in accordance with the legislation of each country. Your scenario falls squarely within point (2) and the imported George Orwell book is to be treated as an infringing copy within the UK. The implementing UK legislation for (2) can be found in Section 27(3) of the Copyright, Designs and Patents Act 1988.
No, you cannot ever legally use copyrighted property without a valid license from the copyright owner. It is understandable that when government restrictions prevent people from licensing intellectual property, people will turn to piracy and black markets to obtain them. However, whenever you find yourself in a region where you can legally license the property, you are (presumably) also in a region where intellectual property rights are respected, and it is illegal to use the property without a proper license from the owner. I.e., the fact that you paid a pirate for a copy – even where that was the only option to obtain one – does not give you a license. You have to obtain a license from the owner.
I assume you are talking about United States federal copyright law. You can freely use any: material published before 1923 material published between 1923 and 1963 for which the copyright was not renewed material explicitly placed in the public domain material not copyrightable (such as any US government publication) material whose copyright has been abandoned (for example the author died with no heir)
Wikipedia has two kinds of pictures: Reusable pictures, most of them stored at http://commons.wikimedia.org Copyrighted pictures under fair-use, stored on the local Wikipedia (in your case, the Russian Wikipedia) but not on Commons. To know what case it is, just click on the Wikipedia picture, click on the blue "Description" button, and see whether it redirects you to Commons or not. Pictures on Commons are reusable if you include the author and license (see the full requirements). Commercial use is OK. Fair-use pictures can not be reused. Unfortunately, https://ru.wikipedia.org/wiki/Файл:Tschedrovitsky.jpg is in the second case, so you can not reuse it, even in a non-commercial setting, unless you can justify that your usage qualifies as fair-use in your country. Hopefully one day someone will find a legally reusable picture of Shchedrovitski and upload it to Commons.
The default answer is NO, but you would have to check the terms&amp;conditions of Meetup.com. For a simpler example, just look at the bottom of this page: "user contributions licensed under cc by-sa 3.0 with attribution required". That means that you can copy pictures from this site to your Facebook page, if you acknowledge the photographer and link back to here.
This would likely be considered a derivative work. You would need permission from the copyright holder to make it, especially if you intend to distribute it for profit.
A document can be distributed under more than one license. Just because it has been made available under a CC license for free, doesn't mean that IEEE can't negotiate a different license with different terms that allow them to sell the content. (This is similar to the way that a software library can be available for free under a license that permits non-commercial use, but also be made available for a fee for commercial use.) If you want to know whether IEEE is legally selling Aaron Swartz's manuscript, you can contact Morgan &amp; Claypool, the publisher that owns the copyright, and ask them whether this use by IEEE has been authorized by them. For the other documents you mention, contact MIT Press. Etc.