Diagram showing traditional dip pen nenolithography using ink (left) and thermal dip pen nanolithography using inks that melt (right). Researchers from the Georgia Institute of Technology and the ...

Add atmosphere and depth to your architectural sketches! Learn step-by-step techniques for drawing clouds and sky using pen and ink — perfect for making your sketches more dynamic and visually ...

What secrets can a hollow pen hold? More than one might imagine, especially when that pen is the vessel for illustrator and ...