Thanks to the fifty or so readers who sent me this :

SURABAYA, Indonesia — Indonesian authorities will drop hundreds of giant concrete balls into a fissure Friday to try to stem a gushing mud eruption that has inundated villages and factories, an official said. The hot, noxious mud — enough to fill 50 Olympic-sized swimming pools — has flowed from the hole each day for the last nine months, forcing at least 11,000 people from their homes. Four villages and 25 factories have been buried under a 30-foot layer of mud. The chained cement balls, weighing up to 550 pounds each, will be dropped from a scaffolding into the so-called mud volcano on the island of Java starting Friday, said Rudi Novrianto, a spokesman for a national task force handling the disaster.