Patents for ballpoint pens go back to the late 1800s, but it took half a century to develop good, fast-drying inks. The post What’s Inside Blue Ballpoint Ink? Fatty Acids and Alcohol appeared first on WIRED.
Source: WIRED
Aggregating the Future
Patents for ballpoint pens go back to the late 1800s, but it took half a century to develop good, fast-drying inks. The post What’s Inside Blue Ballpoint Ink? Fatty Acids and Alcohol appeared first on WIRED.
Source: WIRED