Clocks come in many different forms, from quartz watches to atomic clocks. Take a peek inside and learn what makes each kind tick.
http://electronics.howstuffworks.com/gadgets/clocks-watches/clock-roundup.htm
Clocks come in many different forms, from quartz watches to atomic clocks. Take a peek inside and learn what makes each kind tick.
http://electronics.howstuffworks.com/gadgets/clocks-watches/clock-roundup.htm