Dweezil Zappa 2007. In 2009, Ray White left Zappa Plays Zappa for an undisclosed reason. Zappa lent his voice to one of the characters in one episode of "Metalocalypse" on Adult Swim. In 2016, Zappa went on tour to celebrate the 50th anniversary of the release of Frank Zappa's album "Freak Out!". The tour was titled "50 Years of Frank: Dweezil Zappa Plays Whatever the F@%k He Wants – The Cease and Desist Tour". The tour title was inspired by Zappa's feud with his brother Ahmet over the use of the "Zappa Plays Zappa" moniker, which resulted in Ahmet sending Zappa a
Digit (unit) one twelfth of the diameter of the sun or the moon. This is found in the Moralia of Plutarch, XII:23, but the definition as exactly one twelfth of the diameter may be due to Ptolemy. Sosigenes of Alexandria had observed in the 1st century AD that on a dioptra, a disc with a diameter of 11 or 12 digits (of length) was needed to cover the moon. The unit was used in Arab or Islamic astronomical works such as those of Ṣadr al‐Sharīʿa al‐Thānī (d.1346/7), where it is called "iṣba' ", digit or finger. The astronomical digit was in use