How to Construct an Astrolaba Usin Your PC

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Published on Saturday, 05 July 2014 14:18
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http://www.21stcenturysciencetech.com/Articles_2011/Winter-2011/Astrolabe_Construction.pdf

 

 

Ancient Navigators Could Have Measured Longitude!

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Published on Saturday, 05 July 2014 14:12
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by Rick Sanders

(Full text of article from Fall 2001 21st Century)

 

Around the year 232 B.C., Captain Rata and Navigator Maui set out with a flotilla of ships from Egypt in an attempt to circumnavigate the Earth.1 On the night of August 6-7, 2001, between the hours of 11 PM and 3 AM, this writer, and fellow amateur astronomer Bert Cooper, proved in principle that Captain Rata and Navigator Maui could have known and charted their location, by longitude, most of the time during that voyage.

The Maui expedition was under the guidance of Eratosthenes, the great scientist who was also the chief librarian of the library at Alexandria. Could this voyage have demonstrated Eratosthenes' theorem that the world was round,

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Panama Canal cruise: trip of the century

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Published on Thursday, 03 July 2014 04:28
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 Travel

A voyage on the Panama Canal during its centenary year is an unforgettable   adventure - and, luckily, you won't have to pay the same £224k fee as the   cruise line to experience it

The Panama Infinity sails on the canal, which is celebrating its centenary this year
 

By Lisa Gerard-Sharp

7:00AM BST 28 Jun 2014

Things move at a more leisurely pace in Central America, but on the Panama   Canal marine traffic is lined up with Swiss precision. At Gatun Locks   hulking Chinese containers jostle with cruise ships and tiny Panamanian   tugs. “I’ve done the Panama Canal 50 times,” says Steve

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España ignora la celebracion del día del Marino Civil

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Published on Wednesday, 02 July 2014 07:53
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Esta asociación, española y de la Marina Civil, no ha tenido conocimiento de que en España se haya celebrado ningún acto  oficial con motivo del  Día del MARINO, que algunos, aunque no lo celebren,  se han encargado de convertir gratuitamente en día de las Gentes de Mar, una expresión que no tienen reconocimiento en el diccionario de la Real Academia Española de la Lengua.

                                                                                           

Declarado en 2010 por la Organización Marítima Internacional como homenaje al marino civil, se celebra todos los años el día 25 de junio. Es un homenaje a todos aquellos/as que navegan por los mares del mundo, haciendo de su arriesgada profesión un gran servicio a la sociedad, mediante la pesca, el transporte, las investigaciones científicas y oceánicas, el turismo náutico etc.

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