Our faces express our emotions – apparently there are around 20 key facial movements expressed around 24 facial feature points, which betray our emotions. By scanning these points intelligently, and detecting things such as facial form, computers can read the emotions of those using them.
Ideas posited in the article: websites advertising products directed at the emotional state, detecting boredom or sleepines in cars and helping people with Asperger’s syndrome (difficulty in recognising emotions and facial expressions).

2 gravity wave detectors have been switched on, trying to prove and discover waves posited by Einstein as part of his theory of general relativity.

The Americans have a huge isolated lab called LIGO (Laser Interferometer Gravitational-Wave Observatory) run by a few people from the LSU and California Institute of Technology in the middle of Livingston Parish, LA.

Britain and Germany have their Geo 600 Detector in Hannover, run by scientists from Glasgow, Cardiff, Birmingham and Hannover Universities.

Apparently there’s also a similar experiment in Japan, but I couldn’t find the links to that.