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Marine archaeologists use a underwater dredge to move sediments off what they believe is a 16th century anchor from Hernan Cortes scuttled fleet in the Gulf of Mexico. The dredge acts like a giant vacuum cleaner creating suction by sucking water in from the surface and forcing it down a long tube to the bottom of the ocean where a venturi effect creates suction. In the photo, a engine attached to the yellow hose is forcing water down from the surface and the blue hose is moving sediments away from the excavation site. Photo by, Jonathan Kingston/National Geographic Creative
- Copyright
- Jonathan Kingston
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- 5504x8256 / 30.2MB
- https://www.kingstonimages.com/p/license
- https://www.kingstonimages.com/contact
- Contained in galleries
- Science Photography

