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71USS Bonefish (SS-223) — USS|Bonefish|SS 223 was a Gato class submarine, the first United States Navy ship to be named for the bonefish, which is a name for the ladyfish, dogfish, and sturgeon. Operational history Bonefish s keel was laid down by the Electric Boat… …
72German submarine U-844 — U Boat Infobox type=VIIC fieldpost number= yard number= order date= keel=April 21, 1942 launch=December 15, 1942 commission=April 7, 1943 yard=AG Weser, Bremen U Boat Patrol startdate=Start Date enddate=End Date assigned unit=Assigned Unit U Boat …
73Disasters — ▪ 2009 Introduction Aviation January 23, Poland. A Spanish built CASA transport plane carrying members of the Polish air force home from a conference on flight safety in Warsaw crashes near the town of Miroslawiec; all 20 aboard are killed …
74Digital Light Processing — The DLP Logo Further information: History of display technology Digital Light Processing (DLP) is a trademark owned by Texas Instruments, representing a technology used in some TVs and video projectors. It was originally developed in 1987 by Dr.… …
75Marine habitats — Coral reefs provide marine habitats for tube sponges, which in turn become marine habitats for fishes Littoral zone …
76Heavy water — Not to be confused with hard water or tritiated water. Deuterium oxide IUPAC name …
77Vacuum tube — This article is about the electronic device. For experiments in an evacuated pipe, see free fall. For the transport system, see pneumatic tube. Modern vacuum tubes, mostly miniature style In electronics, a vacuum tube, electron tube (in North… …
78Coral reef — Marine habitats Biodiversity of a coral reef Lit …
79USS Balao (SS-285) — USS Balao (SS/AGSS 285), a sclass|Balao|submarine, was a ship of the United States Navy; balao is the name of any of several halfbeaks. Balao (SS 285) was launched 27 October 1942 by Portsmouth Navy Yard in Kittery, Maine, sponsored by Mrs.… …
80Marine pollution — While marine pollution can be obvious, as with the marine debris shown above, it is often the pollutants that cannot be seen that cause most harm. Marine pollution occurs when harmful, or potentially harmful effects, can result from the entry… …
