Tagged With alloy

Video: Aluminium started as one of the world's most expensive materials because it was difficult to refine -- even though it made up eight per cent of the world's crust. But eventually aluminium became one of the cheapest materials after methods of mass producing it were invented in the 1880s. It went from $US1200 ($1576) per kilogram down to a dollar in 50 years.

Predicting the future is near impossible -- but that doesn‘t stop us all from having a red hot go. Human beings have been predicting the future since the beginning of history and the results range from the hilarious to the downright uncanny.

One thing all future predictions have in common: they‘re rooted in our current understanding of how the world works. It‘s difficult to escape that mindset. We have no idea how technology will evolve, so our ideas are connected to the technology of today.

Video: Aluminium started as one of the world's most expensive materials because it was difficult to refine -- even though it made up eight per cent of the world's crust. But eventually aluminium became one of the cheapest materials after methods of mass producing it were invented in the 1880s. It went from $US1200 ($1576) per kilogram down to a dollar in 50 years.