Tag: sand

A project out of a Saudi university has built a cooling system that uses salt, water and heat from sunlight, but not electricity.

Amazingly, the English alphabet added its last letter in 1524, and no, that letter wasn't Z. We'll explain how an Italian grammarian convinced the world to add one more letter to the list.

A new study spotted sand tiger sharks returning to the same shipwrecks, sometimes over months or even years.