A local resident entertains visitors to the Kawah Kamojang geothermal field in West Java. He puts a length of bamboo to the steam coming from the ground to make a whistle, then throws soda cans into the vent, which shoots them high into the air. The Dutch colonial government drilled Indonesia's first geothermal wells at Kamojang in 1926, when the country was still known as the Dutch East Indies. (Yosef Riadi for NPR)
