Sändes torsdag 2/2, 12:40 - 13:35BBC Earth

Inside the Factory

Säsong 4: Pencils

Gregg Wallace is in Germany, at a historic factory which produces 600,000 pencils a day. At materials intake he is astonished that the main material in a pencil is not lead, but graphite. He helps mix this with clay to produce a 250-kilo batch, enough for 200,000 pencils.

Kategori
Dokumentär / Konsument / Vetenskap
Avsnittspremiär
2019-03-19
Medverkande
  • Michael ReesRegissör
  • Phil SteinRegissör
  • Gregg WallaceVärd
  • Cherry HealeyVärd
  • Ruth GoodmanVärd