The magnetic compass was first invented as a device for divination as early as the Chinese Han Dynasty (since about 206 BC), and later adopted for navigation by the Song Dynasty Chinese during the 11th century. The first usage of a compass recorded in Western Europe and Persia occurred around the early 13th century.
The highest monthly average temperature in Athol for July is 71 degrees. The lowest monthly average temperature in Athol for December is 26 degrees. The most monthly precipitation in Athol occurs in January with 1.7 inches. The air quality index in Athol is 21% better than the national average. The pollution index in Athol is 91% better than the national average.
If you own a 2001-2004.5 LB7 Duramax your normal operating temperatures will run around 160-180 degrees. These transmissions will warm up when towing or driving in the summer months. 200-225 is very common when the ambient air temp is 80-100 degrees and your transmission is under an increased load.