"GB" wrote in message ...

On 15/07/2016 07:20, harry wrote:
https://www.youtube.com/embed/pva5NwCwwGk



Any idea how the cutting wires work?

Same method was used raising the Kursk (Russian nuclear sub that sank). The
steel wire has many bobbins of steel threaded onto it that have carbide
fused into the surface. The wire is used like a giant band saw, the seawater
acting as an effective coolant.


Andrew