The amount of human-made (or anthropogenic) mass, has now exceeded the weight of all life on Earth, including humans, animals, and plants.
You can't find stainless steel, brass, sterling silver, or white gold on the periodic table. Learn about 20 common metal alloys, and what they are made...
Aluminum (or aluminium) is the world's most common metal by crustal abundance, making up 8.2% of mass. Aluminum was not isolated all the way until 1827.
