Nearly every system built by Flow Systems uses sonic nozzles for flow measurement and control. 1  Sonic Nozzle design options. 2  Sonic Nozzle arrays. 3  Sonic Nozzle schematics and performance charts. 4  Sonic Nozzle flow calculation software. 5  Uncertainty analysis reports on Flow Systems test stands built with sonic nozzles.
The Amish, called The Plain People or Old Order Amish, originated in Switzerland about l525.They came from a division of the Mennonites or Anabaptists (Re-baptizers). They opposed the union of church and state and infant baptism. They baptized people only as adults at about age l8.rigins of the Old Order Amish. The Amish, called The Plain People or Old Order Amish, originated in Switzerland about l525. They came from a division of the Mennonites or Anabaptists (Re-baptizers).
Some authors have traced the origin of the Slavs back to indigenous Iron Age tribes living in the valleys of the Oder and Vistula rivers (in present-day Poland and the Czech Republic) around the 1st century CE. This is, however, still a matter of debate. Based on archaeological evidence, we know that Proto-Slavic people were already active by 1,500 BCE within an area that stretched roughly from western Poland to the Dnieper River in Belarus.