The Certified Wound Care Nurse exam is offered quarterly at various testing centers across the United States. The fee to take the exam is $300 with discounts applied if more than one WOCNCB certification exam is taken at a time.
The Ptolemaic model of the solar system held sway into the early modern age; from the late 16th century onward it was gradually replaced as the consensus description by the heliocentric model. Geocentrism as a separate religious belief, however, never completely died out.
Epicycles were not a problem to the medievals, because epicycles were perfect circles. In fact, Copernicus' first version of the heliocentric system was a system of no less than thirty-four circles, including epicycles, to describe the motions of just seven bodies around the central Sun. A previous version of this page included the myth that geocentric systems included lots and lots of epicycles.