Forgot and left off the promised references, here they are: https://en.wikipedia.org/wiki/Time https://en.wikipedia.org/wiki/Timeline_of_time_measurement_technology https://en.wikipedia.org/wiki/History_of_timekeeping_devices https://en.wikipedia.org/wiki/Clock https://en.wikipedia.org/wiki/Day
All of the above look pretty good to me, though a bit of peer review by this group (many being experts in the field) could probably make them even better. Eric On Tue, Apr 3, 2012 at 1:40 PM, Eric Fort <[email protected]> wrote: > Somewhat depends upon the intended audience but the following items > come to mind and I'll finish with 2 references from which to pick > more. The props chosen might also depend somewhat at to what "the > presented philosophy of what time is" is. > > Here's a few things that come to mind: > > Various calendars (Myan, Hebrew, Julian, Gregorian, etc. illustrating > their significance <and making a joke or 2 about the "end of time" > according to the myan long count coming soon) > . > Telescope/transit/sextant - translate where you are to when it is. > > Rubidium Oscilator (a cesium beam is probably a bit big to take along > but a modern rubidium easily fits in a suitcase) > > WWV/WWVH audio recievers WWVB and gps recievers with display > (time/frequency transfer methods & radio controlled clocks) > > finished and unfinished quartz crystals. > > marine chronometer > > pendulum (could be as simple as a mass on a string, variable length > being nice as one can observe how the period changes with length <and > with variation in g should you be able to arrange such ;) > ) > > heliometer > > pocket watch > > clepsydra (aka water clock) > > candles > > Hourglass > > sundial > > tally stick (used for the counting of days) > > Eric > > On Tue, Apr 3, 2012 at 10:59 AM, Rob Seaman <[email protected]> wrote: > > > > I'm giving a colloquium in a couple of weeks and would welcome > suggestions for neat timekeeping gizmos (borrowed or bought) to spark > interest. > > > > Rob > > > > _______________________________________________ > > LEAPSECS mailing list > > [email protected] > > http://six.pairlist.net/mailman/listinfo/leapsecs >
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