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Koeman recupera el manual de verano del 'Dream Team'

Koeman recupera el manual de verano del 'Dream Team'
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How the world's most advanced analytical techniques are saving 'doomed' shipwrecks - Feb 02 2021 - Dr Claudia Mondelli - Life Science News Articles

Feb 04 2021 Read 18066 Times
Author: Dr Claudia Mondelli on behalf
of Institut Laue-Langevin
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When wooden objects sink to the bottom of the sea, they are generally served an extended lifespan. On land, wooden artefacts such as shipwrecks may be destroyed through rotting, animals, or human action, but marine environments can prevent the biological, chemical, and mechanical changes that would cause an object to decay – preserving a rare time capsule to our past.
However, when an ancient shipwreck is pulled from the water, the process of acidification can start and they can begin to crumble. In addition to structural changes from the drying of the wood – causing shrinking and cracking – iron present in features such as nails, combined with sulphur from bacteria, creates the compound ‘iron sulphide’. This material, dormant under water, can develop into destructive sulphuric acid when met with oxygen above groun ....

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