First class divers could work 300 ft (91 m) depths while salvage and second class divers were qualified down to 150 ft (46 m).
Why do divers dive backwards?
Just like using a diver down flag, diving back into the water is a standard safety technique. … Backward diving allows scuba divers to keep a hand on their gear while entering the water to avoid losing a mask or getting lines tangled.
What happens if u fart in a wet suit?
With a modest squeeze, the gas is released into the water where it will form bubbles and camouflage itself with the bubbles exhaled from your regulator. Depending on how tight your wetsuit is, tiny gas bubbles might get stuck in your suit which slows down the bubbles release into the atmosphere.
What happens if you fart in space?
And there is actually air circulation on the ISS to keep astronauts from suffocating on their own CO2 exhalations, so farts get moved away, too. If you do end up going to space, there was one enterprising astronaut who found a way to belch without bomiting.