Despite the Romans' common use of lead pipes, their aqueducts rarely poisoned people. Unlike other parts of the world where lead pipes cause poisoning, the Roman water had so much calcium in it, that a layer of plaque prevented the water contacting the lead itself.
OMB definition, Office of Management and Budget: the division of the Executive Office of the President that prepares and administers the federal budget and improves management in the executive branch. See more.
From Wikipedia, the free encyclopedia. OKB is a transliteration of the Russian initials of Ð¾Ð¿ÑÑÐ½Ð¾Ðµ ÐºÐ¾Ð½ÑÑÑÑÐºÑÐ¾ÑÑÐºÐ¾Ðµ Ð±ÑÑÐ¾ â Opytnoye Konstruktorskoye Buro, meaning Experimental Design Bureau. During the Soviet era, OKBs were closed institutions working on design and prototyping of advanced technology, usually for military applications.