fresnel pattern
71Microwave transmission — The atmospheric attenuation of microwaves in dry air with a precipitable water vapor level of 0.001 mm. The downward spikes in the graph correspond to frequencies at which microwaves are absorbed more strongly, such as by oxygen molecules… …
72Duxbury Pier Light — Duxbury Pier lighthouse in Plymouth Harbor Location Plymouth Harbor, Plymouth, Massachusetts Coordinates …
73Point Robinson Light — Infobox Lighthouse name = Point Robinson Lighthouse caption = location = Point Robinson, Washington coordinates = coord|47.3881|N|122.3746|W yearlit = 1915 automated = 1978 yeardeactivated = foundation = Surface construction = Masonry and… …
74Mendota (Bete Grise) Light — Location Bete Grise, Delaware, Michigan Coordinates 47°22′27″N 8 …
75Concord Point Light — Location Havre de Grace, Maryland Coordinates …
76North Dumpling Light — North Dumpling Lighthouse Location Fisher s Island sound in Long Island Sound, New York Coordinates …
77Coquille River Light — Location Bandon, Oregon Coordinates …
78Milwaukee Pierhead Light — Location Milwaukee, Wisconsin Coordinates …
79Milwaukee Breakwater Light — Milwaukee Breakwater Lighthouse Location Milwaukee, Wisconsin Coordinates …
80Torre della Lanterna — Infobox Lighthouse caption = Torre della Lanterna (taken 01/31/07) location = Genoa, Italy coordinates = coord|44|24|16.44|N|8|54|17.00|E|scale:2500 yearlit = 1543 (current tower) yearbuilt = 1128 (some sources say 1161) automated = 1936… …
