Goblins

Goblins — page 3
Explained by Science Cobalt is a rare element People have been using cobalt for over 600 years They use it for blue glass They use it to make batteries The batteries are used in medical equipment It’s used in cell phones It’s found underground It needs to be mined Its name comes from kobold Kobold is a German word for goblin Like goblins cobalt can be dangerous It has caused the deaths of miners The mines are dangerous When heated there’s a deadly gas This gas kills people It makes people sick Also cobalt can leak into the ground It can leak into the air Large amounts of cobalt are bad It can poison body organs It can poison bones and muscles It can cause tumors and cancer It causes cobalt lung This is a breathing sickness It causes coughing It can be deadly 6