With a cornice, it is the fascia board. May also be called verge board. Base or Baseboard: A narrow board or member placed at the juncture of the floor and wall to cover the joint. Base Cap: A strip of wood or other molding used to finish the upper edge of the baseboard. Base Shoe: A trim piece of wood or other material used at the bottom of the baseboard.
Russiaâs Secret City: The Most Radioactive Place On Earth. âThe arms race is a race between nuclear weapons and ourselves.â âMartin Amis. In A Nutshell. Russiaâs Lake Karachay was used in the 1950s as a dumping site for radioactive waste. Now it is the most polluted place on the planet, with enough radioactivity to kill a person in less than an hour. At its height, it was putting more than 200,000 times the normal amount of radioactivity into the area due to poor waste disposal practices.
A uranium atom has 92 protons and 92 electrons, of which 6 are valence electrons. Uranium is weakly radioactive because all its isotopes are unstable. The most common isotopes of uranium are uranium-238 (which has 146 neutrons) and uranium-235 (which has 143 neutrons). Uranium has the second highest atomic weight of the primordially occurring elements, lighter only than plutonium.