This article is particularly interesting for those interested in exploring our oceans.
However pressures of >7000psi at 3 miles depths make ROVs such as those we describe on Homebuiltrovs.com rather expensive!
cf: http://www.calctool.org/CALC/other/games/depth_press
Here is the article:
https://www.bbc.co.uk/news/resources/id ... sea_mining
Interesting article on deep sea mining
Re: Interesting article on deep sea mining
You should see what happens to a polystyrene cup when you take it down to those depths