Black and blue ink are the only colors the Maricopa County election machines can read. That's why it mattered when a reporter from The Arizona Republic questioned why counters for the hand recount of ...

Question: Which ink color (black or blue) is required for signing legal documents? Answer: Thanks a lot. I expected this question to require 5 minutes to research. An hour later, I am still reading ...

Patents for ballpoint pens go back to the late 1800s, but it took half a century to develop good, fast-drying inks. Bic, Pilot, and other makers jealously guard their formulas, but to get that classic ...