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X-Ray Mag #30

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X-Ray Mag #30

July 01, 2009 - 22:25
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Bonaire Divers’ Paradise by JP Bresser :: Scott Johnson presents Turks & Caicos Islands in the Caribbean and Diving Mysteries Off North Carolina, USA :: Roddenberry Dive Team and the Star Trek Legacy :: Treasure Hunting in the Florida Keys by Millis Keegan :: Shipwreck Treasure - 17th Century Solid Gold Grooming Tool by Carol Tedesco :: Barb Roy tells us about the Reefs of Steel - Artificial Reefs of British Columbia :: Ocean Arts Emporium and 19th Century Blaschka Glass Invertebrates is edited by Gunild Symes :: Gennady Misan tells about an almost fatal dive in Lake Baikal :: Bonnie McKenna explains about Jelly fish Ecology and Tony White explains about special UW Photography Techniques :: Unique Dive site: Crystal River, Florida

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Main features in this issue include:

Blaschka

October 13, 2011 - 23:23
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This summer, Harvard Museum of Comparative Zoology in Cambridge, Massachusetts, USA, is mounting an exhibit of glass models of marine invertebrates made by the 17th century German master glassblowers, Leopold and Rudolf Blaschka of Dresden. Professor James Hanken is an evolutionary biologist and the director of the museum. He talked to X-RAY MAG about the exhibit and the Blaschka glass works.

JH: When I became director a few years ago, I requested a tour of all our collections. We have vast collections here. It’s literally millions, more than 20 million
specimens of one sort or another. And in the course of receiving a tour of our invertebrate animal collections,

Panning, Zooming & Rear Curtain Sync

October 13, 2011 - 23:25
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page 86

These are special photographic techniques that have long been used for many years by both professional and amateur land photographers to add creativity to an otherwise boring shot.

Panning

In its simplest form, panning is either when the photographer is stationary and the subject is moving, or both photographer and subject are moving at the same speed. Let’s take the first one first.

Shipwreck CSI

October 13, 2011 - 23:25
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page 18

Marine archaeology is a specialized science that combines techniques developed by land-based archaeologists, geologists and forensic specialists (to name a few).

The excavation of a shipwreck can include the recovery of very large artifacts, such as a 20-foot long anchor, along with delicate ones such as fragments of sailcloth or paper and even the remains of rodents and insects that once lived below deck.

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