Researchers have created a new conductive ink that can be used on virtually any surface that is applied with a clog-free ballpoint pen. The ballpoint pens can "write" circuits almost anywhere ...

Silver-based ink, flowing from a ballpoint pen, write circuits that power lights. Skip to main content. Scientific American. December 23, 2015. 2 min read.

Who knew there was a pen specially designed for women? The Bic pen "For Her" might be the first of its kind, but that didn't prevent Amazon.com reviewers from offering up snarky, sarcastic reviews ...