The air diver enters the water at 11:37 a.m. and dives to 130 feet for eight minutes. The nitrox/computer diver enters the water at the same time and dives to 132 feet for 11 minutes. Surface ...

For Hackaday readers who don’t spend their free time underwater, nitrox is a blend of nitrogen and oxygen that’s popular with scuba divers. Compared to atmospheric air, nitrox has a higher ...