Opus Book Test English (Gimmicks and Online Instructions) by Denis Marc Paret

This gem of technology, it's an INTELLIGENT MARKER that will allow you to perform miracles. Imagine the following: You are presenting two books to the public. A dictionary of more than 1100 pages (For each language, the number of pages may differ from country to country). A novel of about 300 pages. The viewer chooses a book. You ask him to open this book to any page and give you the page number. IT IS VERY IMPORTANT TO UNDERSTAND THAT THE SPECTATOR MAY BE OVER 30 METERS FROM YOU AND YOU NEVER HAVE THE BOOK BETWEEN YOUR HANDS. The marker will immediately indicate the first word(s) of the page. You also announce a line number. This line number is indicated by the marker which also gives you the first word or words of this line. The lines are all different -- they have been inserted randomly. You can immediately announce the same things on the next page. You can go from page to page until the end of the book if you wish. At any moment, the viewer can decide to change books. Or return