Starship Steel

The invention of steel was one of the most important technological breakthroughs for our ancestors…
Humans had perfected the use of stones and wood for tens of thousands of generations,
and this was all we had since about 2.6 million years ago, when we find the first stone tools…
until about 42,000 years ago…
When we find small amounts of natural gold being collected by humans in Spanish caves …
but nothing intentionally worked or shaped…
Gold can be obvious in nature… it is very bright and easy to spot…
It can be shaped and worked easily…
It is resistant to corrosion and extremely attractive…
copper was the first metal to be recognized and collected in its native form or smelted from the surrounding rock about 7500 years ago…
The oldest metal tool found so far on Earth is a copper awl…
a tool for making holes in softer materials… and is about 7100 years old…
very quickly humanity came into the Copper Age, making tools, weapons, and jewelry from copper…
once the technology to work copper was developed other metals were quickly identified…
ancient mines for softer metals like silver and tin can be found all over the old world…
about 5500 years ago, in Africa and India,
then also in Europe in the Aegean within another hundred years after that…
it was found that you could mix molten copper with molten tin…
and make the world’s first intentional alloy…
bronze…
bronze was an alloy stronger and more durable than copper or tin alone…
or any previously available metal had been…
it could cut through any copper weapon…
Everything changed with this new technology and this time period became known as the bronze age…
This was the true beginning of the art of metallurgy…
Metallurgy is the technology of making and working metals and alloys…
Let’s go through some definitions so we will be on the same page when it comes to metallurgy…
Buckle up…
In metallurgy…
To temper a metal means to heat it then cool it rapidly to produce a more ordered atomic pattern and harden the metal…
Firing a metal just means heating it in a flame…
Working a metal usually means pounding it, sometimes while heated, into useful shapes…this is often seen when making swords and horseshoes…
the ancient Japanese swordsmiths learned that continually heating folding and quenching metal made for a beautiful and strong blade…
Casting a metal is to melt it and pour it into a mold to make a metal object that might be difficult to work through other means…this is often used to make vessels and statues…
Stress is the force applied to a metal…
Strain is the response of the metal to the stress…

Sometimes the heavens would cast a gift from the heavens to mortals...
These falling stars…

https://www.makeitfrom.com/compare/AI...
https://www.nationalgeographic.org/en....
https://monroeengineering.com/blog/ir....
https://www.marlinwire.com/blog/what-...
https://nickelinstitute.org/media/172...



Credit
Gravitation Innovation
MakeItFrom.com
National Geographic
Monroe Engineering
Warp99
Nickel Development Institute