8
votes
2answers
251 views

How to maximise the chances of survival when stranded in open sea?

I read with interest about news of a scuba diver being stranded in the open sea when the diving operator failed to account for all members of a group. Mishaps like this and accidents such as boat ...
10
votes
2answers
3k views

How do I desalinate seawater?

I know I shouldn't drink seawater (because of the salt it contains), but how can I desalinate it?