Based on the US Division of Energy, energy efficiency is “one of the simplest and many inexpensive ways to beat weather adjust, clean up the air we breathe, Enhance the competitiveness of our corporations and minimize energy charges for customers.” With the viewpoint of the energy consumer, the leading motivation of energy efficiency is freque

 The Gero Cross, c.?965–970, Cologne, Germany, the primary great example of the revival of large sculpture The Early Christians were opposed to monumental religious sculpture, however continuing Roman traditions in portrait busts and sarcophagus reliefs, as well as lesser objects such as the consular diptych. These types of objects, normally in