Newtonian telescope secondary mirror. This design reduces the size and cost of the telescope with a shorter overall telescope tube length (with the corrector extending the focal length in a "telephoto" type layout) combined with a less costly spherical mirror. Commercially produced versions of this design have been noted to be optically compromised due to the difficulty of producing a correctly shaped sub-aperture corrector in a telescope targeted at the inexpensive end of the telescope market. Newtonian telescope The Newtonian telescope, also called the Newtonian reflector or just the Newtonian, is a type of reflecting telescope invented by the English scientist Sir
Galilean Galilee, O Galilee, in the end you shall be filled with wrongdoers!" The material culture of the 1st century Galilee indicates adherence to the Jewish ritual purity concerns. Stone vessels (which were required by Jewish dietary purity laws) are ubiquitous and mikvehs have been uncovered in most Galilean sites, particularly around synagogues and private houses. The Pharisaic criticism of Galileans is mirrored in the New Testament, in which Galilean religious passion is compared favorably against the minute concerns of Judean legal scholars, see for example Woes of the Pharisees. This was the heart of a friendly "crosstown" rivalry existing between