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Current position of the SSV Corwith Cramer. Click on the vessel to view position history. Use the tools, top right, to change the map style or view data layers. Dates and times use GMT (Greenwich Mean Time).


SEA Currents: SSV Corwith Cramer

July 06, 2015

Woods Hole Oceanographic Institute (WHOI) Lab Tour

Pen Hallowell, Dexter Southfield School

SEA Semester

Sabrina, Nathan, Oriana and Alessandra posing with a piece of Obsidian found 2 miles deep!

We began the day by learning how to navigate the earth by using Polaris as a way to find the latitude and other early equations to find the longitude. We then traveled down the road to WHOI where we went to the Paleotempestology Lab where Stephanie works.  All of the instruments and tools that she uses are very cool. We then walked down to the engineering workshop and saw equipment that is going to be in Antartica and the North Pole in a few weeks. After dinner, the groups presented what we learned from reading science and newspaper articles. We ended the day with an overview of the next day and study hall.

- Pen

Categories: SEASCape, • Topics: seascape1 • (1) Comments

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Leave a public comment for students and crew to read when they reach their next port and have access to the internet!

#1. Posted by bjolyle on July 09, 2015

Does anyone know the link between time keeping and longitude? If not, there is a fascinating book by Dava Sobel.  Here’s how Amazon describes the book:
Anyone alive in the eighteenth century would have known that “the longitude problem” was the thorniest scientific dilemma of the day—and had been for centuries. Lacking the ability to measure their longitude, sailors throughout the great ages of exploration had been literally lost at sea as soon as they lost sight of land. Thousands of lives and the increasing fortunes of nations hung on a resolution. One man, John Harrison, in complete opposition to the scientific community, dared to imagine a mechanical solution—a clock that would keep precise time at sea, something no clock had ever been able to do on land. Longitude is the dramatic human story of an epic scientific quest and of Harrison’s forty-year obsession with building his perfect timekeeper, known today as the chronometer. Full of heroism and chicanery, it is also a fascinating brief history of astronomy, navigation, and clockmaking, and opens a new window on our world.


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