cylindrical buoy
11Narco-submarine — A narco submarine seized in Ecuador in July 2010 A narco submarine (also called narco sub, drug sub and Bigfoot submarine) is a type of custom made ocean going self propelled submersible vessel built by drug traffickers to smuggle drugs. They are …
12bell — 1. n. & v. n. 1 a hollow usu. metal object in the shape of a deep upturned cup usu. widening at the lip, made to sound a clear musical note when struck (either externally or by means of a clapper inside). 2 a a sound or stroke of a bell, esp. as… …
13Bell — 1. n. & v. n. 1 a hollow usu. metal object in the shape of a deep upturned cup usu. widening at the lip, made to sound a clear musical note when struck (either externally or by means of a clapper inside). 2 a a sound or stroke of a bell, esp. as… …
14Lighthouse — For other uses, see Lighthouse (disambiguation). Speculative drawing (c. 2006) of the Lighthouse of Alexandria, on the island of Pharos …
15Froth flotation — Diagram of a cylindrical froth flotation cell with camera and light used in image analysis of the froth surface. Froth flotation is a process for selectively separating hydrophobic materials from hydrophilic. This is used in several processing… …
16Offshore concrete structure — Offshore concrete structures have been in use successfully for about 30 years. They serve the same purpose as their steel counterparts in the oil and gas production and storage. The first concrete oil platform has been installed in the North Sea… …
17Solar cell — A solar cell made from a monocrystalline silicon wafer …
18Timeline of diving technology — This is a timeline of underwater technology. The entries marked ## are about decompression tables.[1] Contents 1 Pre industrial 2 19th century 2.1 Rebreathers appear …
19USS Keokuk (1862) — USS Keokuk , an experimental ironclad steamer, was the only ship of the United States Navy to be named for the city of Keokuk, Iowa. Her keel was laid down at New York City by Charles W. Whitney, with the name Moodna (sometimes incorrectly… …
20Sea kayak — A sea kayak on Valdes Island, British Columbia, Canada. A sea kayak or touring kayak is a kayak developed for the sport of paddling on open waters of lakes, bays, and the ocean. Sea kayaks are seaworthy small boats with a covered deck and the… …
