In this issue we look at emotions. How important are they? How do we express them? How do we — or robots — understand other people's feelings?
Charles Darwin, the British scientist who described the theory of evolution, was fascinated by emotions. He used photos taken by a French physiologist, Duchenne, who stimulated facial muscles with electricity to study how the muscles help us express emotions. You can try to recognise the emotions in Darwin’s experiments yourself.
And this is a modern version of Darwin's experiment. Look at some faces and try to choose the emotions they are trying to express. Some are easier than others.
And what about robots? Scientists are trying to make them express and understand human emotions, because one day they may be our companions.
The Importance of Being HappyThe United Nations thinks that Happiness is so important, it's created an international Day of Happiness on March 20 every year.
To participate in the UN Day of Happiness you can sign a pledge (promise): “I will try to create more happiness in the world around me.”
Watch the trailer for this film that has a simple message: be happy!
Making a Negative into a Positive
The teachers and pupils of Gladesmore Community School in London were shocked to see the negative image of their city after urban violence in 2011. They wrote a song about all the positive things they felt about their home and used social networks to express their image. This is the three-part documentary they made about "Everybody Dreams".
Respect My Feelings Online!
Do you find it is easier to get angry online than when you are talking in person? Do you receive negative messages that make you feel bad? One in three British teens say they are cyberbullied. If something bad happens to you online, you can get help to make it stop.
Beatbullying.org has lots of suggestions to combat cyberbullying.
Find out more about what you can or can't do online with this online version of our Net Speak quiz.
And if there is an internet expression you need the definition for, this is the place to look.