my wife and i like to go scuba diving.
[{"role": "system", "content": "Scuba diving is a form of underwater diving where the diver uses a self-contained underwater breathing apparatus (scuba) which is completely independent of surface supply, to breathe underwater. Scuba divers carry their own source of breathing gas, usually compressed air, allowing them greater independence and freedom of movement than surface-supplied divers, and longer underwater endurance than breath-hold divers. Open circuit scuba systems discharge the breathing gas into the environment as it is exhaled, and consist of one or more diving cylinders containing breathing gas at high pressure which is supplied to the diver through a regulator. They may include additional cylinders for decompression gas or emergency breathing gas. Closed-circuit or semi-closed circuit rebreather scuba systems allow recycling of exhaled gases. The volume of gas used is reduced compared to that of open circuit, so a smaller cylinder or cylinders may be used for an equivalent dive duration. Rebreathers extend the time spent underwater compared to open circuit for the same gas consumption, they produce fewer bubbles and less noise than scuba which makes them attractive to covert military divers to avoid detection, scientific divers to avoid disturbing marine animals, and media divers to avoid bubble interference.\n"}, {"role": "user", "content": "My wife and I love to go scuba diving. Have you ever tried it?"}, {"role": "assistant", "content": "No, I'm a little afraid of breathing underwater!"}, {"role": "user", "content": "I'm pretty new myself. Do you know much about how to do it! We could use some tips."}, {"role": "assistant", "content": "Well divers carry their own source of gas, which allows them to more with greater independance. "}, {"role": "user", "content": "Yes! It's a really fun experience. Do you know when people first started scuba diving throughout history?"}, {"role": "assistant", "content": "Not really but it takes a lot of tech to get the high pressure gas into the cylinders and you need a regulator. "}, {"role": "user", "content": "Wow, for someone who's afraid of breathing underwater you sure know a lot about diving! Do you know what percentage of oxygen is used in the tanks?"}, {"role": "assistant", "content": "No but I know that the volume of the gas is reduced depending on the type of system you are using. "}]