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Monday, November 18, 2019

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  • Maritime Musings (5) (X)

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Cape Cod Canal

Posted to Maritime Musings (by Dennis Bryant) on July 15, 2014

The Cape Cod Canal is a seven-mile long sea level canal connecting Cape Cod Bay to the north with Buzzards Bay to the south. Maintained by the US Army Corps of Engineers (USACE), it has a minimum channel width of 480 feet and an authorized depth of 32 feet at mean low water.

Macondo well and Fukushima Daiichi

Posted to Maritime Musings (by Dennis Bryant) on April 15, 2011

The Macondo oil spill in the Gulf of Mexico (following the April 20, 2010 explosion and fire on the MODU Deepwater Horizon) and the reactor failures at the Fukushima Daiichi nuclear power plant in northern Japan (subsequent to the March 11,…

Perihelion

Posted to Maritime Musings (by Dennis Bryant) on January 4, 2011

The whoosh you experienced at about 1900 UTC on Monday, January 3, 2011 was the sun passing by on its closest approach to the Earth – a mere 91,402,505 miles away. This recurs every year, often at night when it can’t be observed. The date and…

Prime meridian

Posted to Maritime Musings (by Dennis Bryant) on November 27, 2009

The parallels of latitude are fixed by the rotation of the Earth. The only human involvement is the use of a 360 degree circle, starting at the equator. The degrees of longitude, although using the same 360 framework, could be commenced from…

GPS errors

Posted to Maritime Musings (by Dennis Bryant) on October 23, 2009

The Global Positioning System (GPS) was initiated by the US Department of Defense (DOD) as a position-finding system to be used for military purposes. Originally, it was envisaged for use by nuclear submarines so that they could better aim their ballistic missiles.