miketsp
Contributor
Squashie:Just a minor point of clairification: Helium is actually very small but the atomic number is 2 and the atomic weight is roughly 4 (two protons and two neutrons) and is also inert. Replacing nitrogen with what you described with atomic number 1 would be Hydrogen...combining that with oxygen is something that NASA, not NAUI, does very well...it is called "Rocket Fuel"...not exactly what I want to have strapped to my back when diving or living under the water.
Otherwise, a very excellent explanation for the creation of such a "special" watch.
Woops - red face. I scanned it in & corrected the OCR process especially the spelling.
That one slipped past me. Of course you are quite right.