The new book is finished! It is almost twice the length of the first book, 155 pages, +300 figures. For more information click on the book...

I am working hard on the new book. In fact, I am working on nothing else right now. I have set a target of the end of March to have it finis...

A brief video tour of the solar sensor housing (radome) I made from a standard plastic outdoor electrical box and a hobby store transparent...