1. :This point of observation commands an area nearly fifty miles in diameter. 2. Generally speaking the point of observation would be outside the cell. 3. The 1990 artwork is called " Five Points of Observation " by Kathleen McCarthy. 4. The 1990 artwork here is called " Five Points of Observation " by Kathleen McCarthy. 5. The 1990 artwork here is called " Five Points of Observation ", by Kathleen McCarthy. 6. When analyzing a weather map, a station model is plotted at each point of observation . 7. :" From this point of observation we command an extent of our country nearly fifty miles in diameter. 8. It is presumed that the fort was used as point of observation , since from here, the north valley can be controlled. 9. By rotating the eyepiece assembly in the eyetube, the measurement axis can be aligned to match the orientation of the two points of observation . 10. With the infinite slab model this is because moving the point of observation below the slab changes the gravity due to it to its opposite.