
For a geologist, chemist, or industrial worker, one of the banes of your existence is probably the venerable china marker. They are a wax-based colour pencil, with an outer casing of paper for rigidity that is supposed to be 'easy sharpening' or 'easy peel' along perforated lines. They're extremel...
By:
fostermoodyContinue Reading »from Instructables: exploring - featured http://ift.tt/2x1yviA
via
IFTTT