This is an accurate reproduction of Johann Bessler's (aka Orffyreus) most professional publication, taken from the original... More > book. In it he describes all of the examinations carried out upon his self-proclaimed 'Perpetual Mobile'. All the certificates relating to the examinations are included, as are the original drawings. After the original German and Latin text a full English translation is included. < Less

This is an accurate reproduction of Johann Bessler's (aka Orffyreus) most professional publication, taken from the original... More > book. In it he describes all of the examinations carried out upon his self-proclaimed 'Perpetual Mobile'. All the certificates relating to the examinations are included, as are the original drawings. After the original German and Latin text a full English translation is included. < Less

Apologia Poetica was Johann Bessler's (aka Orffyreus) account of his life up to Karl, the Landgrave of Hesse's patronage.... More > Bessler believed that from this moment on he would be able to sell his Perpetuum Mobile and found a school for mechanical invention with Christianity-based principles. The book contains a number of mysterious codes which it is believed would reveal the construction of the famous gravity-wheel. Some of these codes have been deciphered and are discussed in some of the author's other books. < Less

This was Johann Bessler's (aka Orffyreus) first publication designed to promote his gravity wheel in 1715. The book is in... More > the original German with a full English translation. < Less

The original of Johann Bessler's Maschinen Tractate reproduced as closely to the original as possible and including a full... More > English translation of the accompanying notes. < Less

A study of the life and work of Johann Bessler (aka Orffyreus)who claimed that he had perfected a Perpetual Motion machine... More > in 1712. The evidence for his claims is examined and proof of his sincerity is discussed. The previously unknown existence of a coded message is revealed and described and the possible way in which the machine was constructed is examined. < Less