How the world's most advanced analytical techniques are saving'doomed'shipwrecks

摘要

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.