radioactive source
81Smoke detector — A smoke detector is a device that detects smoke, typically as an indicator of fire. Commercial, industrial, and mass residential devices issue a signal to a fire alarm system, while household detectors, known as smoke alarms, generally issue a… …
82Iridium — (pronEng|ɪˈrɪdiəm) is a chemical element that has the symbol Ir and atomic number 77. A very hard, brittle, silvery white transition metal of the platinum family, iridium is the second densest element and is the most corrosion resistant metal,… …
83Nobel Prize controversies — Nobel Prize Awarded for Outstanding contributions in physics, chemistry, literature, peace, and physiology or medicine. The Sveriges Riksbank Prize in Economic Sciences in Memory of Alfred Nobel, identified with the Nobel Prize, is awarded for… …
84hydrologic sciences — Introduction the fields of study concerned with the waters of the Earth. Included are the sciences of hydrology, oceanography, limnology, and glaciology. In its widest sense hydrology encompasses the study of the occurrence, the… …
85Nuclear densometer — A nuclear densometer is a field instrument used in geotechnical engineering to determine the density of a compacted material. Also known as a soil density gauge, the device uses the interaction of gamma radiation with matter to measure density,… …
86Aktivitätsquelle — radioaktyvusis šaltinis statusas T sritis fizika atitikmenys: angl. radioactive source; radioactivity source vok. Aktivitätsquelle, f; radioaktive Quelle, f rus. радиоактивный источник, m pranc. source de radioactivité, f; source radioactive, f …
87radioaktive Quelle — radioaktyvusis šaltinis statusas T sritis fizika atitikmenys: angl. radioactive source; radioactivity source vok. Aktivitätsquelle, f; radioaktive Quelle, f rus. радиоактивный источник, m pranc. source de radioactivité, f; source radioactive, f …
88radioaktyvusis šaltinis — statusas T sritis fizika atitikmenys: angl. radioactive source; radioactivity source vok. Aktivitätsquelle, f; radioaktive Quelle, f rus. радиоактивный источник, m pranc. source de radioactivité, f; source radioactive, f …
89радиоактивный источник — radioaktyvusis šaltinis statusas T sritis fizika atitikmenys: angl. radioactive source; radioactivity source vok. Aktivitätsquelle, f; radioaktive Quelle, f rus. радиоактивный источник, m pranc. source de radioactivité, f; source radioactive, f …
90Americium — (pronEng|ˌæməˈrɪsiəm) is a synthetic element that has the symbol Am and atomic number 95. A radioactive metallic element, americium is an actinide that was obtained in 1944 by bombarding plutonium with neutrons and was the fourth transuranic… …
