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A speedometer or speed meter is a gauge that measures and displays the instantaneous speed of a ... eg. boats use a pit log, ... using electricity to work. [4] [5] [6
Figure 2: Illustration of a Mercury Manometer-Based Pitometer Log. The basic technology of the pitometer log is similar to that of the pitot tube on an aircraft. Typically, the pitometer has a long tube that penetrates the ship's hull near the keel.
Diagram of a chip log attached to a log-line and reel on a ship. A chip log, also called common log, [1] ship log, or just log, is a navigation tool mariners use to estimate the speed of a vessel through water.
In its original form, from the 19th century until about 1950, the device usually consisted of a round dial about 9 inches (230 mm) in diameter with a knob at the center attached to one or more handles, and an indicator pointer on the face of the dial.
Hull speed or displacement speed is the speed at which the wavelength of a vessel's bow wave is equal to the waterline length of the vessel. As boat speed increases from rest, the wavelength of the bow wave increases, and usually its crest-to-trough dimension (height) increases as well.
Hints and the solution for today's Wordle on Wednesday, January 29.
TAIPEI (Reuters) -Taiwan will support companies that plan to relocate to the United States, including helping them find partners, the economy ministry said on Monday, outlining assistance it will ...
Egyptian boat represented in the tomb of Menna, Tombs of the Nobles, 18th dynasty, mid-2nd millennium BC. Model of an Egyptian ship and crew. Type of Phoenician ships called hippos (name given by the Greeks, because of its mascaron shaped like a horse's head) carrying wood, depicted in an Assyrian relief from Sargon's palace at Khorsabad .