To keep the sheet steel floor of the track from rusting, every morning we had to brush on a coat of graphite “paint”. It was an impossibly messy job — get the least bit of the greasy silver ...

The Graphite Pencil was discovered before 1565, when a deposit of graphite was discovered near Grey Knotts of Seathwaite in Cumbria, England. The locals being traditional farmers found that it was ...