intermolecular forces in everyday life

Since we just finished talking about intermolecular forces of attraction, here is a quick example.  Have you ever wondered how geckos can walk on ceilings?

This is how!

(It’s a research paper, and these things are full of highly technical language, so don’t worry if it doesn’t make total sense to you.  They’re a bit tricky to read, especially at the intro level, but the science is pretty cool!)