A group of students built an autonomous unmanned solar powered drone boat and sent it to a journey to cross the Atlantic. What even cooler, you can actually track it online using the Transatlantic Tracker.
If you are getting a vast number of email notifications sent by your Twitter account and they started to annoy you, this is how you disable and manage them.
Learn some very basic words to get familiar with Greek language for the very first time. You will learn how to say hello, goodbye and similar everyday words.