Crystal Oscillator

How atomic clocks work the part of an atomic clock which is responsible for keeping time is actually a quartz crystal oscillator. steak steal stealth stealthily stealthy steam steamboat steamroll steamroller steamy steel steel wool steep steeple steeply stockyard stodgy stoic stoical stoicism stoke stole stolen stolid stolidly stomach stomachache stomp stone stoned stonewall stony stood stool stoop stop stopgap stoplight stopover stoppage stopper stopwatch storage store storehouse storekeeper storeroom storey stork storm stormy story storyteller stout stove stow stowaway straddle straggle straight straighten straightforward strain strained strainer strait straitjacket strand stranded strange strangely strangeness stranger strangle stranglehold commit commodity communicate compel compensate competence comply compound comprehend comprise compulsion compute conceive concentrate concentric conclude condense confer configuration confine conform confront conjunction consent consequent conserve consist console construct construe consult consume contaminate contemplate contend continent contingent contradict convene converge converse convert cooperate coordinate correlate correspond credible creditor criterion cumbersome currency cylinder decimal dedicate defect defer deficient deflect degenerate degrade deliberate denominator denote dense depress deprive derive detect detriment deviate devise devote diagram dictate diffuse digest dimension discern discourse discrete dispense disperse displace