How Underground Mining Works

People used to use deer antlers to beat the minerals out of rock hidden in the earth. Luckily, they got better at it, and now modern mining is a mind-boggling process for efficiently removing stuff we want from inside the planet.

How Gold Works

Only 161,00 metric tons of gold has been mined in the entire history of the world. Considering about 85 percent of the precious mineral is recycled, there's a chance your jewelry may once have been part of an Incan headdress or Mycenaean face mask. Learn the ins and outs of this metal that humans have killed over for millennia.