According to the researchers, an economically rational person would have no reason to leave a tip after the service has already been provided. Why do people tip? A recent study suggests that two main ...

The New York Times' latest game, Pips, brings domino fun to your desktop. How to play Pips as well as hints in case you get ...

I 'm a big fan of Python for data analysis, but even I get curious about what else is available. R has long been the go-to ...

From editable PDFs to automatic translations, Google Docs has a long list of features many people have never used.