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4 stories for“helium diving mix”
Below 50 metres, ordinary air becomes a liability for divers. Here is the physics behind nitrogen narcosis, rising gas density, and why trimix exists as the technical diving standard.
Jun 8, 2026
In the late 1980s, teaching recreational divers to breathe enriched air was close to heresy. IANTD taught it anyway, then built the trimix and rebreather syllabi much of technical diving still runs on.
Aug 12, 2026
Nitrogen narcosis dulls judgment before a diver notices anything is wrong. Here is why depth impairs decision making, and why self-diagnosis often fails.
May 22, 2024
Modelling the light of nearby dead stars suggests one cool white dwarf may be the first genuinely green star and another the reddest known, though no human eye could see either.
Oct 15, 2026
