It marks the origin of the pen knife. Before 1850, the process for vulcanization of rubber had not been discovered, and the only way to correct a writing mistake was to scratch the ink off the ...

There is no such thing as “black light wavelength”—so why do black T-shirts, black crayons, and black marking pens look black? Investigate a variety of black ink markers ... Some of the brands you ...

The Parker Pen Company is one of 145 companies to receive ... That's when he realized his hands were covered in ink. As both King Charles and Queen Camilla, 76, attempted to clean their hands ...

The Ghibli pens are part of its Energel gel ink pen line, which the company boasts is easy to write with and produces easily legible lines free of unwanted irregularities in straightness or color. The ...