How Aluminum Changed the World

Aluminum started as one of the world ’s most expensive materials because it was difficult to refine — even though it made up 8 percent of the worldly concern ’s freshness . But eventually aluminum became one of the flash material after method acting of mass make it were invented in the 1880s . It went from $ 1200 per kilogram down to a dollar in 50 old age .

The aluminum used back then was still weak and malleable , though . It was n’t until Alfred Wilm incidentally reveal eld - hardening which transmute atomic number 13 to duralumin , an metal with a much potent crystalline social organization , that matter began to alter . Duralumin was used to produce the first all - metal plane , and its long suit eventually led to new planing machine structures being built that changed air travel forever .

Real Engineeringgoes through the account of aluminum and makes the case that it ’s one of those textile in chronicle that completely changed the earth . The video cites other examples for Al ’s grandness , like how its lightness is favored in power lines ( even though copper is a honest director ) and how its used in expression . There ’s a damn playfulness history for such an interesting material .