Her powerful strokes have created eye-catching pictures that are fully illustrated in strokes of black ink. These drawings of ...

Investigate a variety of black ink markers, and find out why they look black ... Chromatography can also be used by law enforcement in crime scene investigations, by art experts to determine original ...

Dr Henry Stephens was at medical school with John Keats, but later (in 1832) invented his famous 'Blue-Black Writing Fluid', which he developed into writing ink ... used his drawing-room when ...