daylight width
31photoreception — photoreceptive, adj. /foh toh ri sep sheuhn/, n. the physiological perception of light. [1905 10; PHOTO + RECEPTION] * * * Biological responses to stimulation by light, most often referring to the mechanism of vision. In one celled organisms such …
32Guadalcanal — Infobox Islands name = Guadalcanal image caption = Guadalcanal s position (inset) and main towns. locator native name = Isatabu native name link = location = Pacific Ocean coordinates = coord|9|37|S|160|11|E|type:isle|display=inline,title… …
33Battle of Shiloh — The Battle of Shiloh, also known as the Battle of Pittsburg Landing, was a major battle in the Western Theater of the American Civil War, fought on April 6 and April 7, 1862, in southwestern Tennessee. Confederate forces under Generals Albert… …
34RAF Polebrook — Infobox Military Structure name= Royal Air Force Station Polebrook USAAF Station 110 location= Located Near Oundle, Northamptonshire, United Kingdom coordinates=coord|52|27|45.49|N|000|23|25.78|W| caption= RAF Polebrook August, 1948 type=… …
35RAF Andrews Field — Infobox Military Structure name= Royal Air Force Station Andrews Field Royal Air Force Station Great Saling USAAF Station 485 location= Located Near Braintree, Essex, England coordinates=coord|51|53|53|N|000|27|18|E| caption= Andrews Field… …
36George Dewey — Infobox Military Person name= George Dewey born= birth date|1838|12|26 died= death date and age|1917|1|16|1838|12|26 placeofbirth=Montpelier, Vermont placeofdeath=Washington, D.C. caption= nickname= allegiance=flagicon|USA United States of… …
37Panamax — The two ships seen here seem almost to be touching the walls of the Miraflores Locks. Panamax and New Panamax are popular terms for the size limits for ships traveling through the Panama Canal. Formally, the limits and requirements are published… …
38Příbram — Geobox | Settlement name = Příbram other name = category = Town image caption = | flag type = Flag | flag border = 1 symbol = Pribram CoA CZ.gif > Coat of arms etymology = official name = motto = nickname = country = Czech Republic country state …
39PT-76 — Infobox Weapon|is vehicle=yes name=PT 76 caption=PT 76 on display near the Museum of the Great Patriotic War, Kiev. type=Amphibious Light Tank origin=flagcountry|Soviet Union service=16 August 1952 present used by=See Operators wars=See Combat… …
40Masthead Island — IUCN Category II (National Park) …
