It's just a trying to improve my English. I going to write about different things around me and my thoughts. I've to write more and more because my English become worse and worse in time.
This weekend I've read a book related with my current interests and work. It was LinearAlgebra, Geodesy and GPS by Gilbert Strang and Kae Borre. It's easy-read, interesting book which reminds me some maths pieces and tells
something new in navigation. I like it. There I met a phase "Hobson's choice" that means "to take it or to leave". Legend says that there was a man, Hobson, who had some horses and rent them out and somebody who want a horse could choose from one, the closest, or decline the deal.
The current book is "Understanding GPS" by Kaplan -- good but sometimes I need to google.