S13·E3 – Coffee, Bricks, Lava Lamps, Diamonds
2016-08-22 • 22 min
How coffee is roasted; how bricks are built; how lava lamps are made; and how diamonds are mined from an extinct volcano.
2016-08-22 • 22 min
How coffee is roasted; how bricks are built; how lava lamps are made; and how diamonds are mined from an extinct volcano.