The nature of ice and snow, Johannes Kepler, war, water and weather modification -- all as it centers around one tiny village: Margaretville, NY. Harper's ran my essay on snow, rain, the city's reservoir system and how one Cold War weapon called on Kepler and changed my village... The rain was silver. It was meant to stop a drought. It brought flooding, and extended from these hills later to Laos and Vietnam, and it was developed in part by Kurt Vonnegut's brother.