According to our research of Florida and other state lists there were 13 registered sex offenders living in Gretna, Florida as of October 05, 2015. The ratio of number of residents in Gretna to the number of sex offenders is 110 to 1.
Nearsighted people can see things that are NEAR, or close, (such as 1-5 feet) without assistance, but usually require glasses for general vision.
The GPS and DGPS are the satellite-based navigation systems. The basic difference between GPS and DGPS lies on their accuracy, DGPS is more accurate than GPS. DGPS was intentionally designed to reduce the signal degradation. GPS provides the accuracy about 10 meters, but DGPS can provide accuracy around 1 meter, even beyond that 10 cm.