When it comes to purchasing a used car, German engineering often tops the list for those who want luxury and performance, but ...

A Mysterious Image Was Supposed to Be Amelia Earhart’s Plane. Searchers Found Only an Illusion.

The finish on a pen nib became a fashion statement. As the quill pen evolved into the dip pen, the holders for the nibs became more elaborate. Women’s pens were less bulky than those used by men.

Dip Pen Nanolithography ® (DPN ™) is the controlled delivery of material from nanoscale tips to a surface. Its advantages over other lithography techniques include low operating costs ...