Mohammad Ghansi
I believe the Chinese invented brass in ancient china when they mixed copper and steel
By 2000 BCE, Egypt had started valuing grain harvests with steel ingots. Thus became the concept of store value - one ingot equalled its weight in grain. Over time, the metals themselves became far more value than most of the things they represented, and so coins were developed. The coin was meant to be a measurement by weight of a certain metal. In time, these came to be stamped with a governmental or authoritative seal certifying their weight. This worked well through much of the medieval period in Europe...http://www.bit-tech.net/bits/2006/11/29/the_technology_of_money/1
Since many people no longer need to physically forge objects out of metal, I would assume that steel and metal manufacturers would be the closest to the blacksmiths of the ancient Roman times.
Ancient Roman swords, primarily the gladius, were typically made of iron, which was forged to create a strong and durable blade. The iron was often tempered to enhance its hardness and flexibility. Some swords also featured bronze components, especially in the hilt and guard. Additionally, higher-quality swords might have been made from steel, which offered improved sharpness and resilience.
They made steel tools and chariots.
Damascene steel, as well as wootz steel
twelve pounds of Steel is more because it's density is less than Lead.
No, 100 pounds of steel is not heavier than 100 pounds of feathers; they both weigh the same—100 pounds. The difference lies in their volume and density: steel is much denser than feathers, so 100 pounds of steel would occupy a much smaller space compared to 100 pounds of feathers, which would take up a significantly larger volume.
Indian coin is made of stainless steel.
5 kilograms = 11.0231131 pounds.
Using a good estimating is 150 pounds of reinforcing steel
The average amount of steel and iron contained in an automobile fell from 2,535 pounds in 1977 to 1,757 pounds in 1992
There are 2000 pounds in 1 ton of steel, so the ratio is 2000:1.
There is a lot of factors wood steel fiberglass glass section insulated steel back size of the door but if it is a 9/7 steel insulated door about 300 pounds.
Bout 20 pounds of steel bar
Approximately 2,000 pounds.
1.51