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Hollis Explorer Rebreather – Silence is Golden

After many months watching more and more friends posting pictures of the Hollis Explorer on their Facebook timelines, I finally got the chance to give the unit a go myself.  I was lucky to find myself on a business trip to Dahab, Egypt at the end of February, which meant I could drop in on […]

two-thirds-water

The planet is 2/3 water

We often hear that the planet is 2/3s water, or the slightly rounded up 70% water.  But actually if you research the numbers a bit more, then we find that salt water makes up 71% alone.   That leaves all the worlds fresh water to be added as well.   With fresh water it is a bit […]

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