For non-metric users, three gallons of milk is probably more accessible. 400 kg is 880lb, which is roughly 12x as dense as water, which is the wild part (or it feels like it, that could be a totally normal density for stone, I’ve already put too much effort in for napkin math on a shitpost)
For non-metric users, three gallons of milk is probably more accessible. 400 kg is 880lb, which is roughly 12x as dense as water, which is the wild part (or it feels like it, that could be a totally normal density for stone, I’ve already put too much effort in for napkin math on a shitpost)