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What Material Is Used for Pen Ink?

A ballpoint and a tipped fountain pen

The pens you use in daily life, such as ballpoint or ink pen, are simple and trivial. It took 100 years of hard work and research. It was done by individuals such as chemists, and business owners. It took decades to refine the ink inside the tube of the pen. It was … Read more

What makes a substance greasy or sticky on a molecular level?

What makes a substance greasy or sticky on a molecular level

Studying the molecular composition of everyday items has fascinated us ever since we could see them under a microscope. How and what a substance is composed of, understandably, goes on to decide how that substance behaves. We have brittle solids that appear rigid but snap when bended, elastic solids that can be … Read more