This was the best handling stylus I'd used due to the smaller tip, until it broke presumably for the same reason. The tip is very thin and soft which a) is great for writing and drawing with, and b) splits very easily.
This is a compact, insightful and thought-provoking gem which can be appreciated from scientific, mathematical, historical and cultural standpoints. With string theory popularising the concept of higher dimensions today, it's an ideal starting point for those wanting to be able to consider some of the big questions that science is asking. Furthermore, this edition is everything you could want from an ebook. It's formatted perfectly, doesn't forgo the illustrations which are important in a book like this, and is at a fantastic price.
