intro4 - Alarm Clock Pendulum Clock u Isochronous...

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Alarm Clock Pendulum Clock u Isochronous motion (1583) u Vincenzo (1649) u Huygens (1675) & Robert Hooke u Galileo t Regulating hair spring Pendulum Clock Huygens (1675) u Regulating Giovani di Dondi (1364) spiral Electronic / Atomic u pico-second pico-second u Electronic t quartz crystal produces a constant current when excited t compressed to produce constant frequency u Atomic t Excitations of electrons in Caesium molecule 1 Caesium Atomic clock 2 ...
View Full Document

This note was uploaded on 06/12/2011 for the course EGN 3000 taught by Professor Staff during the Spring '09 term at University of South Florida.

Ask a homework question - tutors are online