I know Bill Joy was talking to you about the wonders of carbon nanotubes, so I'm going to talk to you about the wonders of carbon macro-tubes, which is charcoal.
Sei que o Bill Joy esteve a falar sobre as maravilhas  dos nanotubos de carbono. Então eu vou falar-vos sobre as maravilhas dos macrotubos  de carbono, que é o carvão!