natural radioactive series

См. также в других словарях:

• radioactive series — Physics, Chem. a succession of elements initiated in the radioactive decay of a parent, as thorium or uranium, each of which decays into the next until a stable element, usually lead, is produced. Also called decay series. [1920 25] * * * Any of… …   Universalium

• natural gas — a combustible mixture of gaseous hydrocarbons that accumulates in porous sedimentary rocks, esp. those yielding petroleum, consisting usually of over 80 percent methane together with minor amounts of ethane, propane, butane, nitrogen, and,… …   Universalium

• Natural-gas processing — is a complex industrial process designed to clean raw natural gas by separating impurities and various non methane hydrocarbons and fluids to produce what is known as pipeline quality dry natural gas.[1] Contents 1 Background 2 Types of raw… …   Wikipedia

• Radioactive contamination — The radiation warning symbol (trefoil) …   Wikipedia

• Natural nuclear fission reactor — Geological situation in Gabon leading to natural nuclear fission reactors 1. Nuclear reactor zones 2. Sandstone 3. Uranium ore layer 4. Granite A natural nuclear fission reactor is a uranium deposit where analysis of isotope ratios has shown that …   Wikipedia

• Natural environment — This article is about the environment. For other uses, see Environment (disambiguation). See also: Nature Land management policies have been developed to preserve the natural characteristics of Hopetoun Falls, Australia while allowing ample… …   Wikipedia

• actinium series — natural radioactive decay series starting with uranium 235 and ending with lead 207 …   English World dictionary

• List of crimes involving radioactive substances — This is a list of criminal (or arguably, allegedly, or potentially criminal) acts involving radioactive substances. Inclusion in this list does not necessarily imply that anyone involved was guilty of a crime. Contents 1 Use of alpha emitters for …   Wikipedia

• List of Spider-Man (1994 TV series) characters — This is a list of characters from Spider Man (1994 TV series). Contents 1 Heroes and allies 1.1 Spider Man/Peter Parker 1.2 Blade 1.3 The Black Cat/Felicia Hardy …   Wikipedia

• Otherworld (TV series) — For Irish Mythology, see Other World. Otherworld Genre Science fiction Written by Josef Anderson Coleman Luck Douglas McIntosh Roderick Taylor Bruce A. Taylor Directed by Corey Allen Richard Compton Paul Michael Gl …   Wikipedia

• Heroes (TV series) — Heroes The logo for the series featuring a solar eclipse Genre Serial drama Science fiction Created by Tim Kring …   Wikipedia