@in_visible_world: I have published many zoom of pencils with different hardnesses. Today I would like to take you into something similar but deeply different at the microscopic size. Charcoal: have you ever wondered why when you touch it, your finger get immediately dirt? Thats because the particles of chracoal are smaller and less attached between each others. You can see it in this zoom! ——————————————— Shot with my: @sonyalpha Sony Alpha 7R IV @bresser_europe DST-0745 @hitachi Scanning Electron Microscope —————————————— #microscopio #microscope #scienza #science #nature #natura #invisibleworld #calligraphy #pen #pencil #charcoal #carboncino #art #sketch #sketching