Specific activity Specific activity Specific activity is the activity per quantity of a radionuclide and is a physical property of that radionuclide. Activity is a quantity related to radioactivity. The SI unit of activity is the becquerel (Bq), equal to one reciprocal second. The becquerel is defined as the number of radioactive transformations per second that occur in a particular radioactive isotope. Its related non-SI unit equivalent is the Curie (Ci) which is transformations per second. Since the probability of radioactive decay for a given radionuclide is a fixed physical quantity (with some slight exceptions, see changing decay rates), the number of
Wat Si Saket Wat Si Saket Wat Si Saket is a Buddhist wat in Vientiane, Laos. It is situated on Lan Xang Road, on the corner with Setthathirat Road, to the northwest of Haw Phra Kaew, which formerly held the Emerald Buddha. Wat Si Saket was built in 1818 on the order of King Anouvong (Sethathirath V.) "Si" is derived from the Sanskrit title of veneration Sri, prefixed to the name of Wat Saket in Bangkok, which was renamed by Anouvong's contemporary, King Rama I. Wat Si Saket was built in the Siamese style of Buddhist architecture, with a surrounding terrace and an