2 ms·

More like 20+ weight belts, you go underwater with a 280kg weight belt you're not coming back!

• yawpitch 4mo ago
  Technically that depends on how much water you and the gold displace.
  • manarth 4mo ago
    I'm a scuba instructor so for giggles I did the maths! Based on these densities: Gold Density: 19.32 g/cm3 Lead Density: 11.34 g/cm3 We now need to understand how much water is displaced by a kg. Gold volume: (1,000 / 19.32) ≈ 51.75 cm3 Lead volume: (1,000 / 11.34) ≈ 88.18 cm3 1kg of gold displaces 51.75 cm3 of water. 1kg of lead displaces 88.18 cm3 of water. Fresh water: 1000 g/litre Salt water: 1025 g/litre In fresh water: 1kg gold = (1000g negative buoyancy - 52g water displacement) = 9948g negative buoyancy 1kg lead = (1000g negative buoyancy - 88g water displacement) = 9912g negative buoyancy In salt water: 1kg gold = (1000g negative buoyancy - 53g water displacement) = 9947g negative buoyancy 1kg lead = (1000g negative buoyancy - 90g water displacement) = 9910g negative buoyancy As a scuba-diving weight, gold is less than 1% more efficient (by weight) than lead. It's counter-intuitive: gold is nearly twice as dense as lead, but the importance in scuba diving is the weight of the, er, "weight", vs the weight of the water it displaces (Archimedes principle). Gold weights per kilo are a tiny amount more efficient than lead per kilo, but much smaller and much sparklier. Anyone who wants to donate me a gold weight-belt, please be assured I would display it to its full magnificance. Around 8kg would be fine :-)