kZMCGErjSVSxk
What sort of music do you listen to? price of abilify maintena The ytterbium clock’s ticks are stable to about one part in one quintillion (1 followed by 18 zeros), meaning the clock can calculate a second exactly the same up to the eighteenth decimal place, a feat that makes it about 10 times better than its predecessors, according to a NIST study, published in the journal Science Express on Thursday.