Alerted by the disruption caused to all air traffic by the Iceland volcano dustexplosion in April 2010 to the power of using social media to communicate with frustrated passengers, KLM started intercepting their customers' Tweets and Facebook remarks and dreaming up little surprise, individualised gifts or events - when, at least, some of them travel.
It is thought that debris from the explosion slams into the gas and dust surrounding whatever it was that blew up, and that this collision generates gamma rays.
Apple said it has established new requirements for firms dealing with combustible dust after the blast in Chengdu and an explosion at another supplier's factory in Shanghai that injured 59.