Aluminum process

Aluminum is a common element that was difficult to isolate and used to be considered precious. A new method called the Hall-Héroult process was developed independently by two individuals, making aluminum cheaper and ideal for various uses like aircraft.
 Hall and Héroult United States and France 1886 Aluminum process

Aluminum is a common element that was difficult to isolate and used to be considered precious. A new method called the Hall-Héroult process was developed independently by two individuals, making aluminum cheaper and ideal for various uses like aircraft.