Many people struggle to make sense of Twitter. The constant stream of information containing up to 140 characters can often overwhelm. But believe it or not all the tweets in the world appear to fit into just six patterns.
The Pew Research Center and the Social Media Research Foundation studied thousands of tweets over a four-year period and came up with these six different conversational archetypes.
There's a stylish alternative in Europe to the sometimes geeky looking bike helmet. Hövding's airbag collar, complete with a gyroscope and accelerometer to detect a crash, is popular in its native Sweden and being sold in Europe and soon in Japan.