Tin mining began early in the Bronze Age, as bronze is a copper-tin alloy.in extraction and use can be dated to the beginnings of the Bronze Age around 3000 BCE, when it was observed that copper objects formed of polymetallic ores with different metal contents had different physical properties.
Quick Answer. Most semi-trailers weigh about 32,000 pounds when they are empty. Because the amount for a payload must be evenly distributed, the amount of cargo a trucker can haul is no more than 34,000 pounds if he is pulling tandem trailers. Continue Reading.
Modern half-ton trucks are pretty much the GVWR Class 2 list; Ford F-150, Chevrolet Silverado 1500, GMC Sierra 1500, Ram 1500, Toyota Tundra, and Nissan Titan. Today these trucks tend to have a curb weight (weight empty but ready-to-drive) around 5,000+ pounds and payload capacities between 1,000 and 3,000 pounds.