Avesta Avesta The Avesta is the primary collection of religious texts of Zoroastrianism, composed in the otherwise unrecorded Avestan language. The Avesta texts fall into several different categories, arranged either by dialect, or by usage. The principal text in the liturgical group is the "Yasna", which takes its name from the Yasna ceremony, Zoroastrianism's primary act of worship, and at which the "Yasna" text is recited. The most important portion of the "Yasna" texts are the five Gathas, consisting of seventeen hymns attributed to Zoroaster himself. These hymns, together with five other short Old Avestan texts that are also part of
The Inventions, Researches, and Writings of Nikola Tesla they are there is life. The Inventions, Researches, and Writings of Nikola Tesla The Inventions, Researches and Writings of Nikola Tesla is a book compiled and edited by Thomas Commerford Martin detailing the work of Nikola Tesla up to 1893. The book is a comprehensive compilation of Tesla's early work with many illustrations. Written in 1893, the book is a record of Tesla's pioneering activities, research, and works. Tesla is recognized as one of the foremost electrical researchers and inventors. At the time of publication, the book was the "bible" of every electrical engineer practicing the profession. The book contains