Roger Tomlinson, the man widely regarded as the father of GIS — Geographic Information Systems — has died at age 80. Tomlinson's 1960s innovation, using computer software to overlay different types of maps on top of one another, revolutionized industry and government.
Photo by Directions Magazine
Following the first official day of summer, many areas in the United States are approaching their highest temperatures for the year. To give you a better idea of the warmest time of year for your area, NCDC has created a new “Warmest Day of the Year” map for the contiguous United States.