Eyes and ears

摘要

On 15 February, the town of Chelyabinsk in the Russian Ural Mountains had an unexpected visitor. A meteor streaked high above the city, briefly blinded commuters and then shattered thousands of windows with a series of ear-splitting explosions. The event was recorded on mobile phones and car-dashboard cameras across the region, and YouTube soon filled with Hollywood-style disaster videos of the fireball, replete with some very colourful Russian commentary.