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 ...

The Think Ink Pen is designed for people who fidget. It flexes with spring-like resistance, has a magnetic ball for sliding, and a spinner for your thumb to roll around. Think Ink was fully funded ...

A staff member shows a multi-language AI real-time translation system with transparent screen at Tianjin branch of iFLYTEK in ...

When it comes to purchasing the best glitter gel pens, there are a few things to keep in mind. First and foremost, consider the quality of the ink. Some glitter gel pens may have ink that fades ...

There are some workarounds to this problem, but not many of them are as smooth an effortless as this one which uses erasable pen ink to add colors to the filament on the fly. Erasable pen ink is a ...

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 ...