No elbows on the table is one of the oldest etiquette rules in the book—but why? Find out how this maxim originated and if it's still a thing today. So why are elbows on the table rude?

A new version of the periodic table of elements has predicted hundreds of highly charged ions that could be used to create the next generation of optical atomic clocks. The periodic table ...

Both puzzles are intertwined with one another — you’ll need to solve the periodic table puzzle in order to adjust the electricity on the machine. Below, in this Blue Prince guide, we’ll tell ...