glass. the tritium atom decays into helium by emitting a beta particle (electron). your watch is not giving off any harmful radiation since the electrons are unable to pass through either the mineral glass or the watch's case. the trigalight® components are installed in accordance with internationally...
acids, alkalis, inorganic oxidizing agents, solvents (for example, alcohols, ketones, esters, chlorocarbons and fluorocarbons) low dielectric constant excellent insulator low coefficient of friction little friction between moving parts the cohesive forces between polymer and water are much less than...
olympic stadium in beijing made of steel plate. unwrapped, the i strands of the 'bird's nest' would stretch for km. by kind permission of world steel association. steels used in such large constructions are often produced from iron which has been treated with molten magnesium to remove sulfur. steels containing...
and natural spring water in armenia. the company implements jermuk mineral natural healing-table water and byuregh spring natural water extraction and bottling. jermuk mineralwater production began in . due to its useful properties and extraordinary taste jermuk mineralwater in a short time became...