Environmental radioactivity g) to that of the soil water (Bq ml). If the radioactivity is tightly bonded to by the minerals in the soil then less radioactivity can be absorbed by crops and grass growing in the soil. One dramatic source of man-made radioactivity is a nuclear weapons test. The glassy trinitite formed by the first atom bomb contains radioisotopes formed by neutron activation and nuclear fission. In addition some natural radioisotopes are present. A recent paper reports the levels of long-lived radioisotopes in the trinitite. The trinitite was formed from feldspar and quartz which were melted by the heat. Two samples
Si Pitung Si Pitung Si Pitung (Old spelling: Si Pitoeng; or sometimes written just Pitung) was a 19th-century bandit in Batavia, Dutch East Indies (modern-day Jakarta, Indonesia). His exploits have since become legendary, with numerous accounts of his life, deeds, and death. Pitung was born in Pengumben, a slum in Rawabelong (near modern-day Palmerah Station) to Bung Piung and Mbak Pinah; he was the fourth son born to the couple. His real name was Salihoen. Based on oral tradition, the name Pitung is derived from "pituan pitulung" (Javanese for "group of seven"). As a child, Salihoen studied at Hadji Naipin's Islamic boarding