I listened to Radio 4 all day and followed their "Big Bang" blog on their website.
Was pretty awesome stuff! Some proper comedy moments too. The beam wouldn't fire the first 2 attempts. On the third attempt the director counted it down "5..4..3.......2......hahahahahaha yeah....1...........erm Nothing............. OH THERE IT GOES YAAAAAY" made me laugh that.
So they got the clockwise beam to go round the 17mile long track in under an hour. Previous colliders have taken 12 hours to achieve that. So they also sent the beam round the other way which they hadn't really expected to do today.
So the full test has worked(including both observation 'camera' stations on the ring) but only at 1/5 of the 'normal operating speed' and only with 1 beam active at a time (they haven't actually collided the beams yet!).
It will be days before they perform a collision apparently. Weeks before they perform one at operating speed. Months before they push the ring to maximum speed.
The times quoted Stephen Hawking as saying he had placed a £100 bet that the experiment would not yield a Higgs Boson particle (which is kinda the whole point of the machine). He also said that they were unlikely to create any blackholes. A less than 1% chance apparently.
So. Historic day today
We took a small step forward today as a race. Sadly it probably passed 70% of the population by as they were too busy worrying about their ipod or how much things cost or some other benign junk that just doesn't matter at all in the greater scheme of things.