SCUBA means self contained breathing apparatus. Most scuba divers wear neoprene hoods and these come in a variety of colours. I think you are talking about standard dress or hard hat diving where the diver has a big spherical helmet and lead boots. These divers are not SCUBA as they have air pumped from the surface. These helmets look brown because they are made of brass and copper which turns brown when it oxidises. If you polished it up, it would look gold in colour.
Absolutely! They've been making scuba regulators for nearly 60 years. The best made. Period!
Astronaut helmets are typically made of materials such as polycarbonate, fiberglass, and aluminum. These materials provide strength, durability, and protection against the harsh conditions of space.
Yes, Freestyle makes water proof watches since they have a range of watches for scuba diving.
A scuba diving costume is commonly referred to as a wetsuit or a drysuit, depending on the conditions and level of thermal protection required. Wetsuits are made from neoprene and are designed to keep divers warm in cooler waters by trapping a thin layer of water between the suit and the skin. Drysuits, on the other hand, provide insulation by keeping water out entirely, making them suitable for colder environments. Both types of suits are essential for safe and comfortable scuba diving experiences.
Helmets are mostly made from polystyrene
Space helmets are typically made from a combination of materials such as high-strength plastics, polycarbonate visors, and reflective coatings to protect astronauts from space debris, extreme temperatures, and harmful radiation. The helmets also include padding for comfort and to help absorb impact in case of emergencies.
Space helmets are usually made of a strong polycarbonate material for durability and protection from the vacuum of space. They also have specialized visors made of materials like gold coating to protect astronauts from harmful radiation and extreme temperatures in space. Inside, helmets have padding and ventilation systems to keep astronauts comfortable during spacewalks.
Scuba diving can contribute to pollution primarily through physical disturbances to marine habitats, such as coral reefs and seafloors, caused by divers' fins and equipment. Additionally, accidental discharge of chemicals from diving gear, such as anti-fogging agents or sunscreen, can contaminate water and harm marine life. Waste generated by divers, including food wrappers or plastic, can also contribute to ocean pollution. Responsible diving practices and education can help minimize these impacts.
The company is Italian but the helmets are made all over the world.
Most scuba tanks are filled with simple purified air. However, some are filled with oxygen enriched air called 'nitrox' or (less commonly) a blend of helium, oxygen and nitrogen called 'trimix' or (even less commonly) helitrox or heliox.
Scuba diving tanks or cylinders are usually made of steel or aluminium. You can also get light weight high pressure cylinders made out of thin aluminium with carbon fibre on the top. These are often used by fire fighters.